[HN Gopher] Largest island in a lake on an island in a lake on a...
       ___________________________________________________________________
        
       Largest island in a lake on an island in a lake on an island (2007)
        
       Author : thunderbong
       Score  : 565 points
       Date   : 2023-04-14 08:38 UTC (14 hours ago)
        
 (HTM) web link (www.elbruz.org)
 (TXT) w3m dump (www.elbruz.org)
        
       | ftxbro wrote:
       | is this the 'steve buscemi worked as a firefighter on 9/11' of
       | hacker news
        
       | eesmith wrote:
       | This 2016 posting is outdated.
       | https://en.wikipedia.org/wiki/Recursive_islands_and_lakes points
       | out:
       | 
       | "Until 2020,[15] Vulcan Point was an island that existed in Main
       | Crater Lake on Volcano Island in Lake Taal on Luzon in the
       | Philippines.[16] Main Crater Lake evaporated during the 2020 Taal
       | Volcano eruption,[15] but the water in Taal Lake has returned and
       | has a new island. Vulcan Point became a peninsula"
       | 
       | Wikipedia's sole entry for "Islands in lakes on islands in lakes
       | on islands in lakes" is
       | https://geohack.toolforge.org/geohack.php?pagename=Recursive... ,
       | commenting also that "Moose Boulder" - another contention - was
       | found in 2020 to be a hoax.
        
         | xbmcuser wrote:
         | wow no wonder I was curious if it would be visible on google
         | earth
         | 
         | https://www.google.com/maps/@14.0091737,120.9958504,179m/dat...
        
       | fwlr wrote:
       | The article states that Greenland is the largest island. This may
       | conflict with a common belief that Australia is an island; as an
       | Australian, allow me to explain (it's actually quite
       | interesting!)
       | 
       | Australia is a continent, so it cannot be an island by
       | definition, as islands are defined as 1. completely surrounded by
       | water, and 2. smaller than continents. It may seem like a silly
       | technical objection at first, but it's actually necessary to
       | stipulate that continents cannot be islands, as otherwise the
       | largest island would be the Americas, or perhaps mainland Asia +
       | Africa + Europe.
       | 
       | Perhaps the other reason Australia _seems like_ an island (while
       | eg the Americas does not) is that it looks mostly convex on a
       | global map. Unfortunately, we can't make use of this intuition in
       | a formal way because of the coastline paradox.
        
         | stickfigure wrote:
         | > Australia is a continent
         | 
         | Or is it King of the Islands?
         | 
         | CGP Grey: https://www.youtube.com/watch?v=3uBcq1x7P34
        
         | rags2riches wrote:
         | I used to think continents and seabed were the same. If you
         | were to add more sea there would be more seabed, less
         | continents. Remove the water and all that's left is a single
         | continent.
         | 
         | But that's not even close. For starters, the continents are
         | ancient. The seabed, the crust between the continents, is in a
         | constant process of renewal. The age of the seabed is measured
         | in millions of years, not billions.
        
         | chii wrote:
         | > Australia is a continent, so it cannot be an island by
         | definition
         | 
         | So the reason greenland being an island is due to definition
         | then? Which makes the concept of an island moot, as it's driven
         | via definition, rather than criteria.
        
           | layer8 wrote:
           | Countries are defined by convention as well; that doesn't
           | make them a moot concept.
           | 
           | That aside, there is actually a rather good criteria-based
           | definition for continents vs. islands:
           | https://news.ycombinator.com/item?id=35568455
        
           | pc86 wrote:
           | What the difference between definition and criteria?
        
             | chii wrote:
             | a criteria can be applied to something to find out if it
             | fits - a definition is by fiat (without the use of any
             | criteria).
        
           | hutzlibu wrote:
           | "So the reason greenland being an island is due to definition
           | then?"
           | 
           | Isn't everything, including criteria?
        
             | mahathu wrote:
             | No, it's the difference between normative and descriptive
             | categorizations.
        
           | iso1631 wrote:
           | The unambigious definition would be a contiguous landmass
           | surrounded by water at sealevel, which would be in descending
           | order of area
           | 
           | Afro-Eurasia *
           | 
           | Americas *
           | 
           | Antarctica
           | 
           | Australia landmass
           | 
           | Greenland
           | 
           | * This of course depending on how rivers and man-made canals
           | of Suez, Panama, and other canals like Kiel, or ones linking
           | rivers, are treated, there could be arguments that Suez
           | should be included (no locks), but Panama shouldn't be, or
           | all should be, or none should be, or Suez and Panama should
           | be, etc
        
         | bee_rider wrote:
         | I've never heard of the idea that Australia might be an island
         | instead of a continent. Grew up in the 90's in the US, FWIW. I
         | wonder if "Australia as a continent" is an older idea?
         | 
         | Of course people will argue endlessly about what exactly a
         | continent is (can't just use geology because then Europeans
         | don't get to be special), but the truth of the matter is,
         | capturing Australia gets you +2 troops in Risk so it must be a
         | continent.
        
         | math_dandy wrote:
         | Avoid these irritating semantics by insisting that "in a lake"
         | be the final prepositional clause in any of these examples. We
         | can all agree that a landmass surrounded by fresh water is an
         | island, right? (And that lakes are uncontroversially fresh
         | water by definition?)
        
           | yowzadave wrote:
           | > And that lakes are uncontroversially fresh water by
           | definition?
           | 
           | As someone who grew up next to the Great Salt Lake, this is
           | not uncontroversial!
        
             | math_dandy wrote:
             | Point.
        
             | grogenaut wrote:
             | Why is the gsl a lake and the Salton sea a sea
        
               | Dylan16807 wrote:
               | Salton Sea is a lake.
        
         | usrusr wrote:
         | So we're safe from continents in lakes on islands? Phew.
        
         | nuclearcookie wrote:
         | In school in Belgium, we learned that Oceania is the continent
         | and not Australia. So for us, would Australia then be the
         | largest island after all?
         | 
         | https://en.wikipedia.org/wiki/Oceania
        
           | juliangamble wrote:
           | Quoting from that page:
           | 
           | In her 1961 book The United States and the Southwest Pacific,
           | American author Clinton Hartley Grattan commented that, "the
           | use of the word Oceania to cover Australia, New Zealand, and
           | the [Pacific] islands now has a slightly old-fashioned
           | flavor."
        
             | jefftk wrote:
             | Whether it was an "old-fashioned" term in 1961 doesn't have
             | much bearing on whether we should use it now, though.
        
             | mfer wrote:
             | > has a slightly old-fashioned flavor
             | 
             | When people use things like this I try to catch it. This
             | isn't a reasoned argument. It's meant to have the reader or
             | hearer feel a certain way to change minds.
        
               | yamtaddle wrote:
               | Rather than reasoned, such a tip may be useful--if one
               | wishes to speak or write about what one has read without
               | giving an odd or unintended impression.
        
               | bryanrasmussen wrote:
               | I mean there are expressions that seem archaic and she
               | remarked on it.
        
               | atonse wrote:
               | Agreed, anyway what is old-fashioned about it? And is
               | that even a valid argument to not use it anymore?
        
               | DiggyJohnson wrote:
               | Why do you interpret her reporting that the term is "old-
               | fashioned" as an argument that it shouldn't be used?
               | She's not making an argument, just remarking on the term.
        
               | bluGill wrote:
               | Language is only useful if we all agree on a common
               | meaning for it. If you use old fashioned language I may
               | still recognize it, but it is still wrong: you need to
               | update your language to whatever is current (this does
               | change!) so that we continue to understand each other.
               | 
               | Maybe I can't define why it is old fashioned, but if it
               | is old fashioned it is wrong. I would hope that people
               | who better understand the details have a better
               | definition of the terms in use and could apply it, but
               | all I know is your usage is old fashioned. (Note, the
               | above doesn't preclude the idea that I'm wrong and the
               | language is current, merely that we both need to do more
               | research and should be more careful in this area
               | until/unless we do!)
        
               | Verdex wrote:
               | > Language is only useful if we all agree on a common
               | meaning for it.
               | 
               | Is it possible to agree on a common meaning for language
               | using the language for which we are attempting to agree
               | on the common meaning? On a logical level, I think I
               | reject such an idea, although I would be fascinated in an
               | argument that suggests such a thing would be possible.
               | 
               | > all agree
               | 
               | Information theory suggests that commonly used symbols
               | should be short and rare symbols should be long. Any
               | subgrouping of people will encounter scenarios requiring
               | different ideas to be discussed at different frequencies.
               | Jargon differing amongst people is to be expected and is
               | what at least I have observed. I also reject 'all agree'
               | on an information theory level.
               | 
               | > Language is only useful
               | 
               | And finally on a personal note. I generally misunderstand
               | what most people are talking about most of the time. I
               | think of it in terms of being weakly immune to peer
               | pressure, but the other side of the coin is that I have a
               | hard time keeping up with whatever group I'm a part of.
               | And vice versa, I often say things that others quite
               | obviously misunderstand.
               | 
               | However, I still find language useful. Even when there is
               | no agreement on common meaning. Even when jargon
               | necessarily forms differently between groups (and often
               | even between individuals). Even when we try imperfectly
               | to define language basing it upon itself. Using old
               | fashioned language (or simply uncommonly agreed upon
               | language) isn't 'still wrong' even if recognized. It is,
               | I assert, the only way language can even be.
        
               | pmarreck wrote:
               | You're right. But it may still have that flavor.
        
               | [deleted]
        
           | lhorie wrote:
           | Tasmania and Frasier are islands, which would make Australia
           | more of an archipelago, I think.
        
           | FabHK wrote:
           | There are schools of thought with 4, 5, 6, or 7 continents,
           | but all of them consider Australia a continent, and Oceania a
           | region, at least according to Wikipedia; though "some
           | geographers group the Australian continental landmass with
           | other islands in the Pacific Ocean into one 'quasi-continent'
           | called Oceania."
           | 
           | https://en.wikipedia.org/wiki/Continent#Definitions_and_appl.
           | ..
        
           | marcosdumay wrote:
           | All continents include islands, but that doesn't make their
           | main land body an island.
           | 
           | Anyway, all of that is completely arbitrary, so don't expect
           | it to make sense.
        
           | fwlr wrote:
           | Yes, if you grew up being told that the continent is Oceania,
           | and all the people around you were also told the continent is
           | Oceania, then Australia is indeed the biggest island.
           | Language is fun like that.
        
           | lexandstuff wrote:
           | The definition of a continent is a continuous expanse of
           | land. So technically, Australia is a continent, and Oceania
           | is a region [1].
           | 
           | It seems that parts of the world refer to regions as
           | continents.
           | 
           | [1] https://en.wikipedia.org/wiki/Region
        
             | BillinghamJ wrote:
             | I wouldn't say the definition is all that clear-cut either:
             | https://en.wiktionary.org/wiki/continent#English
             | 
             | > generally regarded as seven in number, _including their
             | related islands_, continental shelves etc.
        
             | OJFord wrote:
             | Ok so the bulk of Great Britain is a continent, Northern
             | and the Republic of Ireland form a continent, the Isle of
             | Wight is a continent, ...?
             | 
             | Or for the NA readers: the bulk of NA&SA form a single
             | continent, not two, Russia and continental Europe sometimes
             | join it, Hawaii is a continent, ...?
        
             | rvba wrote:
             | Something does not add up for me here. If you say that
             | Australia is a continent, but Oceania a region.. then how
             | is New Zealand classified? Shouldnt it count as a continent
             | too? (What is probably wrong)
             | 
             | I think all those things are quite cultural: after all
             | Europe and Asia are connected, arguably with Africa too.
             | Same for both Americas which could be counted as one big
             | thing. On a side note does: Panama canal work as a real
             | divide between both Ameican continents? Similar question
             | for Suez Canal
        
             | prennert wrote:
             | "continuous expanse of land" would imply at least that any
             | island is its own continent, but perhaps even that each
             | bank of any river (while water is in it) would divide
             | continents. So that does not seem right.
             | 
             | Wikipedia actually contradicts you in the first two
             | sentences in the "Continent" entry [0]:
             | 
             | > A continent is any of several large geographical regions.
             | Continents are generally identified by convention rather
             | than any strict criteria.
             | 
             | [0]: https://en.wikipedia.org/wiki/Continent
        
               | frosted-flakes wrote:
               | An island is not an _expanse_ of land, and the presence
               | of a river doesn 't make an expanse of land
               | discontinuous.
        
               | prennert wrote:
               | Greenland and Madagascar would disagree. But yes on
               | second thought, you are correct with the river.
        
             | memsom wrote:
             | The funny thing is that in other languages, you are not
             | right. I thought I was remembering correctly, so I looked -
             | here is what Swedish has to say:
             | 
             | https://sv.wikipedia.org/wiki/V%C3%A4rldsdelar_och_kontinen
             | t...
             | 
             | So - in Swedish, "kontenent" is a "continuous expanse of
             | land". But a "varldsdel" (which translates to "part of the
             | world" roughly) is I guess "region". So - if you look at
             | the table, "Europe" and "Asia" are both individual
             | "varldsdel", but they are one "kontinent" Eurasia. This
             | certainly flies in the face of what I was taught in school
             | - Europe was definitely a continent, as was Asia. Also
             | notice, Oceana is a "varldsdel", Australia is a
             | "kontinent". But Google translates both words to
             | "continent" in English, but the words are different..
             | kontinent is "geographical", but varldsdel is "cultural".
             | 
             | I think this is what causes the issue - the definition of
             | the 7 traditional continents in English is not universal.
             | This page seems to imply it is very dependent on where you
             | live (sorry, in Swedish again):
             | https://www.geoguessr.com/seterra/sv/p/hur-manga-
             | varldsdelar (this is google translates version:
             | https://www-geoguessr-com.translate.goog/seterra/sv/p/hur-
             | ma... )
        
             | LeifCarrotson wrote:
             | If you define the continent as a continuous expanse of
             | land, then the Americas and Afro-Eurasia are continents,
             | albeit divided by the Panama Ithsmus, Suez Ithsmus,
             | and...Ural Mountains?
             | 
             | Panama and Suez are divided by a canal, but those are
             | artificial with a floor higher than sea level. If you
             | stopped maintenance on the canals for a geologic blink of
             | an eye and it would return to a land bridge, but it's
             | narrow...I can see arguments both ways.
             | 
             | However, the only argument for calling Europe one continent
             | and Asia a different continent is that Eurasia would be too
             | big if it were a continent. Afro-Eurasia is right out!
        
               | eesmith wrote:
               | Technical point: The Suez canal is a sea-level waterway,
               | and even has a slow rate of flow. There are no locks.
               | 
               | The floor of the canal is definitely below sea level.
               | There's a 1.2 m difference in sea level between the two
               | ends, and the canal is 24 m deep.
               | 
               | That said, without maintenance it would indeed revert to
               | a land bridge.
        
               | mvandermeulen wrote:
               | What if I was to count to 5 instead of 3?
        
             | madeofpalk wrote:
             | "continuous expanse of land" Is United Kingdom a part of
             | Europe?
        
               | einpoklum wrote:
               | Oh, you don't want to get into that discussion my
               | friends. Many men have died in the context of "answering"
               | that question...
        
             | twelvechairs wrote:
             | > The definition of a continent is a continuous expanse of
             | land.
             | 
             | That is both vague and by no means the only definition of a
             | continent. A continent is basically defined culturally -
             | different places say there are 4,5,6 or 7 continents.
             | 
             | The closest to a good scientific definition is 'the largest
             | landmass of a continental plate' (which would include
             | Australia but not greenland, but then arguably India, east
             | Africa, Arabia and Central America are really also on their
             | own plates)
        
               | anyonecancode wrote:
               | I like having a clear definition like basing it on
               | continental plates, though a map of the plates seems to
               | raise its own set of questions. How small is too small of
               | a plate to count? What of parts of what we call
               | continents that are actually on a different plate?
               | 
               | https://upload.wikimedia.org/wikipedia/commons/b/b4/Plate
               | _te...
               | 
               | I think continent, in the general usage, is really more
               | of a cultural/political definition than an an objective
               | standalone concept.
        
               | scythe wrote:
               | Perhaps the most challenging problem with the plate
               | definition is that it would place northern Honshu and all
               | of Hokkaido in North America. Treating the Caribbean,
               | India and Arabia as continents is basically consistent
               | with how we talk about them anyway.
        
               | bluGill wrote:
               | I wish science would come up with a better definition.
               | Just like we no longer have Pluto as a planet (there were
               | other definitions they considered with different results
               | - the important thing is a useful definition)
        
               | SllX wrote:
               | That won't happen, largely because continents are BS
               | scientifically but useful colloquially and in geography.
               | Politics also uses them too, but the usefulness of that
               | I'll leave as an exercise for others.
               | 
               | If you want science, you want plate tectonics and
               | geography focused around the boundaries of plates and
               | volcanic science. If you want to know what a continent
               | is, whatever model you were taught in school is good
               | enough for government work. The important thing is to
               | know what that land over yonder is if you're on a boat.
        
               | manojlds wrote:
               | Yeah then Pluto is a planet as well. We defined it more
               | precisely and demoted Pluto. Continents are just not
               | defined in detail.
        
               | frosted-flakes wrote:
               | I mean, Pluto is definitely still a planet in the
               | cultural imagination. There can be exceptions to rules.
               | Even if there are some exoplanets that resemble Pluto, we
               | can still say that Pluto is a planet and those other
               | nameless things aren't.
        
               | Nevermark wrote:
               | I cannot understand why the cultural understanding of
               | planet wasn't respected, while still making whatever
               | nuanced distinction scientists wanted.
               | 
               | My solution would have been:
               | 
               |  _Planet_ = any standalone body in space, formed around a
               | star or brown dwarf, large enough for gravity to mold it
               | into a sphere, but not massive enough to enable any
               | fusion. (i.e. exclude stars and brown dwarfs).
               | 
               | Then:
               | 
               |  _Major planet_ : Planet that has cleared the
               | neighborhood around its orbit. We have 8 of these.
               | 
               |  _Minor planet_ : Planet that has not cleared the
               | neighborhood around its orbit. This would include Pluto,
               | Ceres, and many extra-Pluto bodies.
               | 
               | The current scientific definition is tortured. I.e. a
               | "dwarf planet" is not a "planet", which is just
               | unintuitive nomenclature grammatically, as well as
               | violating the regular use of the word "planet".
        
           | krzyk wrote:
           | In my case (school in Poland) it was: Australia and Oceania
        
           | JoeAltmaier wrote:
           | Surely that would be Antarctica?
        
           | dragonwriter wrote:
           | > In school in Belgium, we learned that Oceania is the
           | continent and not Australia. So for us, would Australia then
           | be the largest island after all?
           | 
           | No, whether you call the continent "Australia" or "Oceania",
           | the land mass that makes up the entirety of the mainland of
           | it is, _ipso facto_ , not an island, and neither is the
           | country occupying the entirety of that landmass and some
           | adjacent islands (though, of course, it contains several
           | islands.)
        
             | elvis70 wrote:
             | Oceania is not Australia. After the Wikipedia article:
             | "Oceania is a geographical region which includes
             | Australasia, Melanesia, Micronesia, and Polynesia".
        
               | [deleted]
        
               | martincmartin wrote:
               | Yes, but Australia is " the land mass that makes up the
               | entirety of the mainland" of Oceania.
        
               | SllX wrote:
               | In English, Australia is just Australia. The Australian
               | continent includes the Australian mainland, New Guinea
               | and several islands within Australian or Indonesian
               | jurisdiction.
               | 
               | Oceania is this designation of convenience that excludes
               | islands that are non-Continental and would otherwise be
               | lumped in with Asia, and in addition to Australia there
               | are three groupings of island territories which are
               | ethnically classified as Melanesia, Micronesia and
               | Polynesia.
               | 
               | Melanesia includes New Guinea (remember, part of the
               | Australian continent, separated from the country by a
               | strait), and running east goes to Nauru, southeast to
               | Fiji, and then west to New Caledonia which is essentially
               | one of the highest altitude masses of the mostly
               | submerged continent of Zealandia (the other land masses
               | being New Zealand and a few islands belonging to the
               | country of Australia). Melanesia also includes the
               | Solomon Islands and Vanuatu.
               | 
               | Micronesia is a region that from Palau runs east through
               | the Federated States or Micronesia to Kiribati, northwest
               | to the Mariana Islands (including Guam) and back down to
               | Palau and is mostly in the Northern Pacific.
               | 
               | Polynesia forms a near-triangle often referred to as the
               | Polynesian Triangle with New Zealand in the Southern
               | corner, Hawai'i in the Northern corner and Easter Island
               | in the Eastern corner. There are too many island groups
               | here for me to want to list them all, but this is
               | essentially where Polynesian peoples settled.
               | 
               | Which brings us back to Oceania. There's all these
               | islands people live that if you squint your eyes a little
               | look like they're close enough to Australia. Why not just
               | group them all together and call them a continent? And
               | from what I've gathered that's exactly what a lot of
               | countries have done for a while or started to do.
               | Continents are basically arbitrary BS anyway, good BS
               | that serves a useful purpose colloquially but still BS;
               | and it looks like to me like it's just a way of keeping
               | the list of "major regions" shorter than it otherwise
               | would be because between Australia also being a country
               | and all of these archipelagos spread out across the
               | Pacific being both low population and underdeveloped,
               | nobody wants to append them to a list of supposed
               | "continents" as separate entities, so Oceania it is.
               | 
               | And if you did that, what about India? Arabia?
               | Madagascar? The western portion of North America
               | basically divided by the Rockies? This would start to get
               | political after a while.
               | 
               | So eh, Australia is a continent in English, but Oceania
               | is a region that includes Australia. Whether the
               | continent of "Australia" includes the obvious portions
               | like New Guinea, well, not when I was in school, but I
               | don't think that matters.
        
           | sebastialonso wrote:
           | We learned this in Chile as well, Oceania is as Asia is as
           | America. Also that no country is at the same time a
           | continent. Are Aussies taught that their country is the
           | actual continent?
        
             | throwaway894345 wrote:
             | > Also that no country is at the same time a continent
             | 
             | Can a continent have the same name as a country?
        
               | coutego wrote:
               | Yes. America.
               | 
               | I know, I know. English speaking countries refer to the
               | continent as "the Americas" rather than America, as the
               | rest of the planet does but, then, the rest of the planet
               | refers to the "United States of America" as the "US" and
               | (normally) not as "America" .
               | 
               | Now seriously, America is a given name for the whole
               | continent (with Noth America and South America as its two
               | subcontinents) and was never meant to be used as the name
               | of any one of its 35 countries.
               | 
               | Many in the EU are often doing the same chauvinistic
               | thing, refering to themselves as "Europe" forgetting that
               | there are 23 European countries that are not part of the
               | EU. That case is slightly (just slightly) less annoying
               | because at least is 27 EU European countries vs 23 non EU
               | European countries, so at least they can claim to be the
               | majority of countries. US case is one country vs. 34, so
               | objectively even more absurd.
        
               | mixmastamyk wrote:
               | Synecdoche is relatively common:
               | 
               | https://en.m.wikipedia.org/wiki/Synecdoche
        
               | throwaway894345 wrote:
               | This comment seems confused. In English, "the Americas"
               | isn't a continent nor are North America and South America
               | "sub-continents"; rather, North America is a continent,
               | South America is a continent, "the Americas" refers
               | unambiguously to the collection of both continents, and
               | "America" refers unambiguously to the United States of
               | America (and "American" refers unambiguously to a US
               | citizen). The only chauvinism occurs when speakers of
               | other languages insist that the English language adopt
               | their model of continents and the corresponding toponyms
               | and demonyms (for example, many Spanish speakers use
               | "Americano" to refer to inhabitants of the Americas, and
               | since that word looks like "American" in English, many of
               | these Spanish speakers believe English speakers should
               | modify the meaning of "American" to mirror their
               | "Americano").
               | 
               | Using "Europe" to refer to the EU member states in
               | English is different because "Europe" in English
               | traditionally refers to the entire continent and
               | referring to the EU as "Europe" introduces ambiguity. I
               | don't think this ambiguity is a significant problem and I
               | wouldn't call it "chauvinism" but perhaps I could be
               | convinced otherwise.
        
               | lhorie wrote:
               | > "America" refers unambiguously to the United States of
               | America
               | 
               | When people say "Columbus discovered America", it most
               | certainly is referring to the entire landmass and
               | surrounding islands (he technically landed in the
               | Bahamas).
        
               | throwaway894345 wrote:
               | That seems likely to be a vestige and not emblematic of a
               | general pattern.
        
               | msm_ wrote:
               | By the way, one thing I always wondered? Are Canadians
               | annoyed by that usage, or more or less accepted that
               | they're not "American" in English? (I would especially
               | appreciate if a Canadian shared their thoughts about
               | this)
        
               | lhorie wrote:
               | (I'm a canadian citizen, born in South America)
               | 
               | My two cents is US people are the ones who have an
               | unusual take on the word "America". Outside the US, it's
               | not very idiomatic to call the country "America", or even
               | "USA". "US" is more common (and in both Spanish and
               | Portuguese, it's almost always called "Estados Unidos").
               | 
               | The term "american" is mainstream both in Canada and
               | elsewhere. I imagine that's probably at least partly a
               | function of "unitedstatesman" being too much of a
               | mouthful. (BTW, if you think that's a ridiculous word, in
               | portuguese "estadounidense" is an actual word, albeit
               | with a connotation of being something a "woke" person
               | might say).
        
               | coutego wrote:
               | > many Spanish speakers use "Americano" to refer to
               | inhabitants of the Americas, and since that word looks
               | like "American" in English, many of these Spanish
               | speakers believe English speakers should modify the
               | meaning of "American" to mirror their "Americano"
               | 
               | Spanish speakers, or, rather, the Crown of Castille
               | created the word "America" and "americanos" to refer to
               | the new continent and their people. English speakers
               | adopted the same word, but with a different meaning.
               | 
               | Not saying that it's wrong for US people to refer to
               | their country by anh word that they chose. They are free
               | to do so. But it is useful, I think, to understand that
               | people for other countries of America, who call
               | themselves "americanos" because that's what they are, can
               | be surprised to be told they are not "Americans", even
               | though they are "americanos". I guess it's confusing for
               | them, at the very least.
               | 
               | Just imagine that Colombians started to call their
               | country "America" and when you went there they would
               | insist that you are not American ("americano"). I guess
               | you would not be amused. I don't know.
               | 
               | I'm not "americano", but European, so it doesn't really
               | affect me. Just trying to give some context to better
               | understand others. Peace! :-)
        
               | coutego wrote:
               | That's what I wrote, that in English speaking countries
               | you refer to the whole continent as "the Americas".
               | 
               | The name "America", though, was given to the whole "New
               | World", which is what we now call "America", the
               | continent. British started using the name just for what
               | is now the US, so in English speaking countries, the
               | usage is different nowdays. In other countries "America"
               | continues to be used for the whole continent (it is still
               | considered one conti nent, not two).
               | 
               | https://en.m.wikipedia.org/wiki/Amerigo_Vespucci
               | https://en.m.wikipedia.org/wiki/Continent
        
               | frosted-flakes wrote:
               | Sure, Australia the continent and country have the same
               | name.
        
             | xiande04 wrote:
             | We were taught that Australia is a continent in the US as
             | well. But then again, Americans are not known for their
             | knowledge of geography...
        
               | Clamchop wrote:
               | Pretty sure even Americans know of islands and
               | continents, even if they bin them differently. The
               | distinction is fundamentally arbitrary...
        
               | xiande04 wrote:
               | Okay. If you think that, go ask a random American to
               | point to Oceania on a map. Report back to me when you do.
               | :)
        
               | Clamchop wrote:
               | Different goalpost. :) :) :)
        
               | kube-system wrote:
               | I was taught both in the US. The content taught in US
               | schools varies by locale.
        
           | e-v wrote:
           | I don't know if you went to a French-speaking school in
           | Belgium, but I was told the same thing in a French school.
           | The French "continent" certainly refers to a large mass of
           | land and its surrounding islands [1]. Hence, the continent is
           | Oceania rather than Australia.
           | 
           | [1] https://www.larousse.fr/dictionnaires/francais/continent/
           | 186...
        
             | judge2020 wrote:
             | Also "Oceania" according to ISO 3166-1
             | 
             | https://en.wikipedia.org/wiki/List_of_sovereign_states_and_
             | d...
        
             | yellowapple wrote:
             | That's how we learned it in middle school and beyond here
             | in the US, but the Australia question boiled down to "yeah,
             | technically it's an island, but are you _really_ going to
             | start your conversations about Australia with a bunch of
             | quibbling around islands v. continents? ".
        
               | brewdad wrote:
               | Quibbling over pedantry is what this site does best.
        
               | late2part wrote:
               | You mean arguing!
        
               | hinkley wrote:
               | SHUT YOUR FESTERING GOB, YOU TIT! YOUR TYPE MAKES ME
               | PUKE!
        
               | B1FF_PSUVM wrote:
               | No, it's not. Exquisite all-Erlang front pages are also
               | occasionally served.
               | 
               | (OK, once, many years ago, but the point stands.)
        
               | ed_elliott_asc wrote:
               | Citation needed.
               | 
               | Oh wrong site.
        
             | ed_elliott_asc wrote:
             | My children 12&9 were taught at school in the UK that
             | Australia was in oceanana
        
             | ghostDancer wrote:
             | Spain, at least at my time was the same. The Continents
             | were Asia, Africa, America (North and South as one) ,
             | Europe, Oceania.
        
               | ComputerGuru wrote:
               | Funny. One America but no Eurasia ;)
        
               | ghostDancer wrote:
               | I'm talking how we learned 40 years ago in Spain, don't
               | know if it has changed. Antarctica wasn't even included
               | then.
        
               | dorfsmay wrote:
               | Then, by that definition, how is Europe, as opposed to
               | Eurasia, a continent?
        
               | panxyh wrote:
               | The continents are defined geologically and not by amount
               | of blue around them on a map.
        
               | 0xffff2 wrote:
               | North and South America are on different tectonic plates,
               | while Europe and most of Asia are on a single plate. If
               | anything, the geological definition of continents seems
               | to support separate Americas and a unified Eurasia.
        
               | panxyh wrote:
               | I stand corrected then. Always assumed that the Ural lied
               | on border of two plates.
        
               | Beldin wrote:
               | And to acknowledge India as a separate continent.
        
               | TylerE wrote:
               | The best argument for separating the Americas is probably
               | the existence of the Darien Gap. I'm not sure there is
               | more inhospitable route in a populated area anywhere in
               | the world.
        
               | [deleted]
        
               | eesmith wrote:
               | The continents are defined geographically and culturally,
               | not geologically.
               | 
               | https://en.wikipedia.org/wiki/Continent points out how
               | they "are generally identified by convention rather than
               | any strict criteria" and lists "several ways of
               | distinguishing the continents", with the 7-continent
               | model, two different 6-continent models. It also mentions
               | the "four-continent model consisting of Afro-Eurasia,
               | America, Antarctica, and Australia", as well as how there
               | were only three discrete landmasses present during the
               | Pleistocene ice ages, when the Bering Strait was instead
               | land.
               | 
               | You can see the cultural influence in:
               | 
               | > In the English-speaking countries, geographers often
               | use the term Oceania to denote a geographical region
               | which includes most of the island countries and
               | territories in the Pacific Ocean, as well as the
               | continent of Australia.
               | 
               | > In some non-English-speaking countries, such as China,
               | Poland, and Russia, Oceania is considered a proper
               | continent because their equivalent word for "continent"
               | has a rather different meaning which can be interpreted
               | as "a major division of land including islands" (leaning
               | towards a region) rather than "land associated with a
               | large landmass" (leaning towards a landmass).
               | 
               | They are not defined by geology nor continental plates.
               | For one, the word and current use is far older than our
               | first glimmers of understanding plate tectonics.
               | https://www.etymonline.com/word/continent says the
               | meaning in the 1550s was "continuous tract of land" and
               | by the 1610s became "one of the large land masses of the
               | globe".
               | 
               | FWIW, the North American plate includes some of the
               | continent of Asia.
               | https://en.wikipedia.org/wiki/North_American_Plate
        
               | ta8903 wrote:
               | No Antarctica? I was taught it was a continent (making 7
               | of them) and Wikipedia confirms it being one.
        
               | ghostDancer wrote:
               | 40 years ago in Spain 5 continents only, no Antarctica,
               | my guess is as no one was living there why worry about
               | it. Don't know if it has changed, I'll ask my son.
        
         | pasc1878 wrote:
         | If Australia is a continent then what continent are New Zealand
         | and New Guinea in?
        
           | ezzaf wrote:
           | They are not part of a continent, but simply islands (well,
           | groups of islands).
           | 
           | Some definitions would include them as part of Oceania.
        
           | Marqin wrote:
           | New Zealand is part of Zealandia continent (which nowadays is
           | mostly submerged)
        
         | schwartzworld wrote:
         | > it's actually necessary to stipulate that continents cannot
         | be islands, as otherwise the largest island would be the
         | Americas, or perhaps mainland Asia + Africa + Europe.
         | 
         | I don't understand. Why does considering a single continent to
         | be an island also mean that you need to include groupings of
         | multiple continents in that definition? Europe + Asia + Africa
         | is 3 continents, not one.
        
           | axus wrote:
           | Is it transitive? Does "continent cannot be island" imply
           | "island cannot be continent"? I don't even know the other
           | word to describe "island cannot be a single continent, but it
           | CAN be multiple continents".
           | 
           | I guess that gets into the question: "Can a river count as
           | the border of an island?". What happens if the river dries up
           | sometimes?
           | 
           | It seems people have already decided there are 7 continents,
           | and will adjust the definition until it gives the result.
        
         | munk-a wrote:
         | Might I supply an alternative island definition that would help
         | clear things up? Any landmass surrounded by water where you can
         | acquire a Mai tai is an island - while any landmass surrounded
         | by water where you are unable to acquire a Mai tai is an islet.
         | More seriously - this is like the pluto debate all over again
         | and it seems mostly fueled by negative perceptions of being and
         | not being a thing. Can't we just settle on all distinct land-
         | masses being islands and some islands just being stupidly
         | large? I don't get what we stand to gain by excluding either
         | three or four land masses from the island definition. So long
         | as we're excluding man made canals from the definition we only
         | have Afro-eurasia, the Americas, Antartica and possibly
         | Australia as non-island landmasses - making an exception in a
         | group of thousands? millions? of water surrounded land-masses
         | to not be islands feels exceptionally useless.
         | 
         | I humbly propose we open the consumption of Mai tais to
         | everyone on earth without discrimination. If you object I
         | welcome you to come to a conference I'm arranging on the island
         | of Jylland.
        
         | xg15 wrote:
         | > _Unfortunately, we can't make use of this intuition in a
         | formal way because of the coastline paradox._
         | 
         | I wonder if you could create some "relaxed" definitions of
         | "convex" that would be able to capture shape properties only at
         | certain scales. Something like "every polygon from points which
         | are between x and y meters from the coastline and at least z
         | meters from each other is convex".
        
           | fwlr wrote:
           | Draw a convex polygon which satisfies the conditions
           | 
           | 1. Every point on the edge of the polygon is in water
           | 
           | 2. Every point on the land in question is inside the polygon
           | 
           | And then sample some very large _n_ points uniformly
           | /randomly from inside the polygon, reporting whether you hit
           | land or water. The closer to 100% land your sampling gets,
           | the more "convex-like" the land in question is.
           | 
           | Basically, draw a convex bounding polygon around the land and
           | ask how much of that bounding polygon does the land fill up.
        
         | Laaas wrote:
         | Continents are a flawed and made-up concept. They make no
         | sense. They add absolutely no value to any discourse. I simply
         | refrain from using the concept.
        
           | fsckboy wrote:
           | sounds like the best way to describe you and your feelings
           | about this subject is: incontinent!
        
           | rendaw wrote:
           | I agree, in fact islands are a made up concept too. All
           | landmasses on earth are surrounding water, although not
           | simultaneously. There are only lakes.
        
             | ByThyGrace wrote:
             | The whole conversation will get awkward once the polar ice
             | caps fully melt.
        
         | AmVess wrote:
         | We can fuse ideas and call it a Continental Island.
        
         | belter wrote:
         | It would be great if it existed at all:
         | https://www.theguardian.com/technology/shortcuts/2018/apr/15...
        
         | amelius wrote:
         | If Australia is an island, then the moment someone spills a
         | drop of water on Mars they are standing on an island.
        
         | iso1631 wrote:
         | The term "continent" is illdefined, but English wikipedia
         | defines the Continet of Australia to comprise the country of
         | Australia and the country of Papua New Guinea, as well as part
         | of the country of Indonesia (Western New Guinea)
         | 
         | https://en.wikipedia.org/wiki/Australia_(continent)
         | 
         | This is a separate Australia to Australia the Mainland (which
         | doesn't New Guinea), and separate from Australia the country
         | (which includes Tasmania)
         | 
         | Therefore I'm not convinced that "Australia is a continent, so
         | it cannot be an island by definition" rules out the Australia
         | Mainland.
         | 
         | If we look at the wikipedia definition of Island
         | 
         | "subcontinental land completely surrounded by water"
         | 
         | And accept that "Australia the continent" comprises "Australia
         | Mainland", New Guinea (both PNG and part of Indonesia), and
         | nearby islands like Tasmania and Lord Howe (but not New
         | Zealand), then Australia Mainland is surely subcontinental and
         | completely surrounded by water.
         | 
         | Once you leave the English speaking world though, Oceania as a
         | continent comes into play, which goes back to that "definition
         | of continent"
        
           | layer8 wrote:
           | Please see https://en.wikipedia.org/wiki/Island#Differentiati
           | on_from_co...:
           | 
           |  _There is a widely accepted difference between islands and
           | continents in terms of geology. Continents are often
           | considered to be the largest landmass of a particular
           | continental plate; this holds true for Australia, which sits
           | on its own continental lithosphere and tectonic plate (the
           | Australian Plate).
           | 
           | By contrast, islands are usually seen as being extensions of
           | the oceanic crust (e.g. volcanic islands), or as belonging to
           | a continental plate containing a larger landmass (continental
           | islands); the latter is the case of Greenland, which sits on
           | the North American Plate._
        
             | bee_rider wrote:
             | The continental plate based definition seems to include a
             | number of splits they are not widely considered continents.
             | I mean I'll happily combine Europe and Asia into Eurasia,
             | and India is clearly a continent, but an Arabian continent
             | doesn't seem to be brought up much at all, and I've never
             | heard of somebody listing "a bit of Central America" when
             | talking about the continents.
        
             | iso1631 wrote:
             | Asia (Or Eurasia, or Africa/Eurasia) comprise multiple
             | tectonic plates, as does America (or North/South America).
             | Is the area south of the Himalayas a separate continent
             | from the area north because they're on different plates?
             | What continent is Iceland in? Or Japan, much of which is on
             | the North American plate.
             | 
             | There's no clear definition and there's far to much
             | political and cultural meaning in the definition of a
             | continent so any definition involving the term is going to
             | be ambiguous.
        
           | ezzaf wrote:
           | Wouldn't this apply to other continents too? Given for
           | example Vancouver Island is part of North America, then North
           | America (the island, not the continent) would qualify as it
           | too is sub-continental. Europe and Asia would be the only
           | continents excluded by virtue of being connected by land.
        
         | manojlds wrote:
         | > as otherwise the largest island would be the Americas, or
         | perhaps mainland Asia + Africa + Europe.
         | 
         | Isn't that the point though? North America is not an island.
         | Asia is not an island. If NA and SA were one, they would be an
         | island, but they are not.
         | 
         | If the point is Australia is a continent and hence not an
         | island fine. But it's not because Americas will then become
         | island because Americas is not a continent.
        
           | fsckboy wrote:
           | North and South America are isthmi
        
             | munk-a wrote:
             | Eurasia is just a big penisula off of the Sinai.
             | 
             | These technical definitions are pretty awful when we get
             | down to it.
        
           | isaacremuant wrote:
           | It's not "The Americas".
           | 
           | It's America. It's a continent. It was named after Amerigo
           | Vespucci.
           | 
           | The fact that English speakers, led by the citizens of the
           | United States of America, in practice claim the name America
           | for themselves and want to push the point of North and South
           | (never quite agreeing what north is depending on the
           | political point being made), doesn't mean that there's
           | objective validity to it. Just a egocentric convenience and
           | the superpower influence.
        
             | jgwil2 wrote:
             | You're being very pedantic about something that's
             | fundamentally arbitrary and culturally defined. What makes
             | your preferred usage the correct one?
        
             | Dylan16807 wrote:
             | > Just a egocentric convenience and the superpower
             | influence.
             | 
             | This is completely wrong, unless your argument is something
             | like there being only two continents. Which is fine but
             | pretty far from how continents are normally defined and you
             | should probably use a different word.
             | 
             | By far the most egregious continent border is Europe vs.
             | Asia, and Africa is connected to those two just as much as
             | the Americas are connected.
             | 
             | > never quite agreeing what north is depending on the
             | political point being made
             | 
             | You get the same political fussiness around every continent
             | border. But the geographic boundary is pretty well decided
             | to be Panama.
        
           | anamexis wrote:
           | There is no singular definition of continent. In some uses,
           | the Americas are a singular continent.
           | 
           | (One odd example is the five Olympic rings, which represent
           | the "five inhabited continents": Asia, Europe, Africa,
           | Australia, and the Americas.)
        
             | manojlds wrote:
             | Precisely the point that these are arbitrary definitions.
             | Making a point that making Australia a island would make
             | Americas also island is silly.
             | 
             | And the ring represents Oceania and not Australia, and this
             | makes Australia an island in Oceania.
        
         | krzyk wrote:
         | Well, Antarctica is bigger than Australia.
        
         | duxup wrote:
         | Make sense to me.
         | 
         | > It may seem like a silly technical objection at first
         | 
         | And of course, just gotta draw the line somewhere.
        
         | CorrectHorseBat wrote:
         | >otherwise the largest island would be the Americas, or perhaps
         | mainland Asia + Africa + Europe.
         | 
         | Just curious, why perhaps? the second is much bigger
        
           | bluGill wrote:
           | Africa is enough separate that you can make an argument that
           | it isn't part of Asia+Europe. I can see no good reason to
           | call Europe and Asia a separate continent. (I'm not sure if
           | it is bigger than north+south America - it feels like it is,
           | but maps can be deceiving and can't be bothered to look it
           | up). Of course if Africa is not part of Asia+Europe then it
           | is hard to argue America is one continent.
           | 
           | In the end we don't have a good definition of continent
           | though, so you can find plenty of weird things you can argue
           | should be the definition and thus come up with a lot of
           | contradictory answers.
        
           | globular-toast wrote:
           | Maybe Afroeurasia is just "land" and everything else is
           | ocean, with islands.
           | 
           | I find it funny that humans love facts like "the skin is the
           | largest organ" but hate facts like "Afroeurasia is the
           | largest island". I wonder why that is.
        
             | yamtaddle wrote:
             | I don't think people hate either, we just don't treat them
             | as actually-true when using language. Nobody ordinarily
             | means to include "skin" when they say "organ" (possibly
             | doctors or academics in certain contexts, but it's not
             | normal usage), and nobody means "Afroeurasia" when they say
             | "island".
             | 
             | It's a kind of _reductio_ based on what people will tell
             | you when you ask them to define  "island", to show that
             | definitions they come up with tend to have outcomes they
             | don't like--happily, we may just ignore all that and keep
             | using the words in a useful and mutually-intelligible way,
             | so that language remains tenable. In fact, the reductio
             | isn't proving people wrong when they say "afroeurasia isn't
             | an island". Nobody treats it that way, so it's not. If they
             | did, we'd need a different word for "island".
        
             | jonwinstanley wrote:
             | Africa, Europe and Asia are continents, so can't be Islands
        
               | globular-toast wrote:
               | The definition of continent is very fuzzy and mostly man-
               | made. So all you're really saying is Afroeurasia isn't an
               | island because we decided it isn't.
        
         | lhorie wrote:
         | In many parts of the world, it is taught that Oceania is the
         | continent.
         | 
         | IMHO, saying that Australia is a continent comes with the
         | problematic notion that its close-by neighbour New Zealand is
         | not part of any continent, which would be weird given that even
         | Bouvet island is assigned to a continent.
        
       | sleight42 wrote:
       | I almost never comment here anymore but, well, here we are.
       | 
       | Says something about software people that we find such
       | fascination with recursion.
       | 
       | Also, I can't help but reflect on a brilliant quote from
       | Community:
       | 
       | "Stop being meta. Stop taking everything we do and shoving it up
       | its own ass." -- Jeff Winger
       | 
       | With <3
        
         | behnamoh wrote:
         | I read each line like a lisp expression: from the end to the
         | beginning. Recursion tickles my brain!
        
         | ajmurmann wrote:
         | > Says something about software people that we find such
         | fascination with recursion.
         | 
         | Interesting! I would have thought everyone would finds this
         | fascinating. Is that truly not the case?
        
           | biggu wrote:
           | Interesting that you find that interest interesting
        
         | PaulDavisThe1st wrote:
         | > Says something about software people that we find such
         | fascination with recursion.
         | 
         | Yes, I've always been fascinated by the way software people
         | find fascination with recursion.
        
           | brianpan wrote:
           | You might also like this:
           | https://news.ycombinator.com/item?id=35567026
        
             | PaulDavisThe1st wrote:
             | I prefer https://news.ycombinator.com/item?id=35569670
        
               | michtzik wrote:
               | I would have thought you'd link to
               | https://news.ycombinator.com/item?id=35574446
        
               | PaulDavisThe1st wrote:
               | self-reference and recursion are related but distinct
               | ideas.
        
             | jononomo wrote:
             | genuine LOL
        
           | chankstein38 wrote:
           | I've always been fascinated by the way people find it
           | fascinating the way software people find fascination with
           | recursion.
        
           | rhyme-boss wrote:
           | How dare you.
        
       | leobg wrote:
       | Almost as confusing to my brain as SQL JOINs...
        
         | gt565k wrote:
         | What, it's just set theory basically
        
           | frakt0x90 wrote:
           | "A monad is just a monoid in the category of endofunctors,
           | what's the problem?"
        
           | bl0rg wrote:
           | [flagged]
        
       | adamgordonbell wrote:
       | Wikipedia seems to say Treasure Island is the world's largest
       | natural island in a lake on an island in a lake. Not sure which
       | source is right?
       | 
       | https://en.wikipedia.org/wiki/Treasure_Island_(Ontario)
        
         | hn_throwaway_99 wrote:
         | They agree. Treasure Island is #7 from the article:
         | 
         | #7: Largest island in a lake on an island in a lake
         | 
         | Island in Mindemoya Lake on Manitoulin Island in Lake Huron
         | (CAN)
        
           | adamgordonbell wrote:
           | Oh ok, My bad! The wild thing to me is the picture on
           | wikipedia shows its not a small island. All the nesting made
           | me think it would be quite small.
        
         | zapdrive wrote:
         | But is the last lake on an island?
        
         | dmix wrote:
         | The linked website is outdated (the maps should be a signal)
         | the last Lake in the list doesn't exist anymore
         | 
         | > Up until the 2020 eruption of Taal Volcano there was a crater
         | lake on Volcano Island. It was known as Yellow Lake and Main
         | Crater Lake and contained its own small island, Vulcan Point.
         | Vulcan Point was thought to be one of few third-order islands
         | in the world.
         | 
         | https://en.wikipedia.org/wiki/Taal_Lake?wprov=sfti1
        
           | a_cardboard_box wrote:
           | But then the page for the crater lake says it came back after
           | a series of typhoons, but it gives no citation for that
           | claim.
           | 
           | https://en.wikipedia.org/wiki/Taal_Volcano_Main_Crater_Lake#.
           | ..
        
             | grumple wrote:
             | You can see the lake for yourself on the latest satellite
             | images on google maps.
        
       | mikrl wrote:
       | Lake Huron also has the #1 and #2 longest freshwater beaches in
       | the world (8.7mi and 7mi) , both fairly close to Manitoulin
       | island!
        
         | gmiller123456 wrote:
         | How are "beaches" defined? Because Pictured Rocks National
         | Lakeshore has a "beach" named 12 mile beach. And, having
         | paddled next to it the whole way, it certainly qualifies as a
         | beach in my mind.
        
       | michael2l wrote:
       | Anybody else suddenly have the urge to play Civilization?
        
       | niels_bom wrote:
       | Funny to see the website of a previous employer here:
       | https://www.mijnlieff.nl (if you do a whois on elbruz.org you can
       | check it)
        
       | Nevermark wrote:
       | Anyone know what the largest moon of a moon of planet would be?
       | 
       | Around a star around a binary star around a massive star? (Star
       | systems can be embedded. We know of double binaries.)
       | 
       | Seriously, it would be interesting for someone to study how
       | deeply nested a system might go, and be plausibly stable, from
       | what we know of solar system formation and dynamics.
        
         | freetime2 wrote:
         | > Anyone know what the largest moon of a moon of planet would
         | be?
         | 
         | I had to think about this for a minute. At first thought a moon
         | of a moon didn't seem to be possible as the gravity of the
         | moon's planet would certainly make an orbit around a moon
         | unstable. But apparently if the moon is large enough, and
         | separated enough from its planet, it can in theory have a moon.
         | Saturn's moons Titan and Iapetus, Jupiter's moon Callisto, and
         | Earth's Moon would be capable of hosting submoons. [1]
         | 
         | No submoons have yet been found, though.
         | 
         | [1] https://academic.oup.com/mnrasl/article/483/1/L80/5195537
        
           | twawaaay wrote:
           | > At first thought a moon of a moon didn't seem to be
           | possible as the gravity of the moon's planet would certainly
           | make an orbit around a moon unstable.
           | 
           | No, that's not true. Moons can have moons with stable orbits.
           | Not every moon can, though.
           | 
           | If you think about it, the Moon already orbits Earth which
           | orbits Sun.
           | 
           | Our Moon could have satellites but the issue is that it is
           | lumpy. It is not uniform in density and this causes huge
           | gravitational anomalies which prevent long term stable
           | orbits. If Moon was uniform it could have stable orbits.
        
       | SpaceManNabs wrote:
       | Reading this made me happy. Thanks to the maker of this content!
       | There is something beautiful about the next level just being
       | present in your mind.
        
       | vrglvrglvrgl wrote:
       | [dead]
        
       | zelphirkalt wrote:
       | So bascially ... fractal island, you are saying?
        
       | leipert wrote:
       | My geography teacher used to say: "On small islands you won't
       | find rivers. There is a mnemotechnic verse to remember that: 'On
       | small islands you won't find rivers'"
       | 
       | Don't know if it is even true. Stuck with me to this day, if I
       | ever meet him again, I will ask about whether small islands can
       | have lakes or not.
        
         | eesmith wrote:
         | So far the smallest island I've found with something people
         | describe as a "river" is Suduroy, in the Faroe Islands, at
         | 163.7 km2 (63.2 sq mi).
         | 
         | "the great cirques of upland central Suduroy where the hilltops
         | reach an altitude of 574 m, but overlook and to a degree
         | shelter the summer grazings of Hovsdalur (altitude about 200
         | m). The whole is drained by the Hovsa, a salmon and trout
         | river. Freshwater is ample here as everywhere in the Faroe
         | Islands, with rivers, count-less streams and an average annual
         | precipitation of 1334 mm (Sogaard, 1996)." -
         | https://link.springer.com/content/pdf/10.1007/s10745-005-474...
         | 
         | It also has a hydropower plant.
         | https://en.wikipedia.org/wiki/Botnur_power_plant .
         | 
         | Is Suduroy a "small island"? Perhaps! I found a larger island
         | which Wikipedia describes as small.
         | 
         | "Rinca, also known as Rincah, Rindja, Rintja and Pintja, is a
         | small island near Komodo and Flores island, East Nusa Tenggara,
         | Indonesia, within the West Manggarai Regency", at 198 km2 (76
         | sq mi), says https://en.wikipedia.org/wiki/Rinca .
         | 
         | Anyone know of a smaller island with a river?
        
           | FabHK wrote:
           | Hong Kong Island (with 78 km^2) has Staunton Creek Nullah,
           | which is a nullah, so presumably not a river?
           | 
           | https://en.wikipedia.org/wiki/Staunton_Creek_Nullah
        
             | eesmith wrote:
             | Hmm. It appears to be artificial. The Wikipedia entry says
             | "an artificial open channel" and 'Visit To Places Of
             | Historic Interest In The Aberdeen Area Of Hong Kong Island'
             | from 1967 (at
             | https://www.jstor.org/stable/pdf/23890119.pdf) says:
             | 
             | "It was up this valley that Sir George Staunton, the
             | eminent sinologue and Third Commissioner in the Amherst
             | Embassy to Peking in 1816,strolled from the Aberdeen
             | anchorage the following year to visit the village Yi  in so
             | doing to give his name to Staunton Creek now, 150 years
             | later, being reclaimed from the sea."
             | 
             | I would not call that a river.
             | 
             | On the other hand, while researching the above I found that
             | Lantau Island, Hong Kong at 147.16 km2 (56.82 sq mi) has
             | the Tung Chung River.
             | 
             | Lantau Island - https://en.wikipedia.org/wiki/Lantau_Island
             | 
             | Tung Chung River -
             | https://en.wikipedia.org/wiki/Tung_Chung_River
             | 
             | That's smaller than Suduroy, and smaller than the "small
             | island" of Rinca, making it seemingly a small island with a
             | river.
        
           | ricardobayes wrote:
           | This is stretching it but this island (Poro Island - 96.6
           | km2) seems to have a "stream" and a waterfall into what looks
           | like a pond. I wouldn't really call it a river by any means
           | though. https://en.wikipedia.org/wiki/Poro_Island
        
             | eesmith wrote:
             | I don't find any publications referring to a river on Poro
             | Island, and from your description I agree it's not a river.
             | 
             | Also, if it were then Rarotonga at 67.39 km2 has a
             | waterfall ending up in a pond.
             | https://www.gettyimages.com/detail/photo/wigmores-papua-
             | wate... . Video after a heavy rainfall at
             | https://www.youtube.com/watch?v=AgM7b8WjCPw .
        
         | theandrewbailey wrote:
         | Not sure why one would need to make a distinction between small
         | islands and not-small islands. Islands can have rivers, e.g.
         | Thames in Britain.
        
         | arketyp wrote:
         | I interpreted the joke being that a mnemotechnic is like a
         | river, poetry flowing, so you won't find one for knowledge that
         | is already concisely formulated, like a small island.
        
           | quickthrower2 wrote:
           | Thats XKCD hover comment level of clever
        
         | yreg wrote:
         | Makes sense, right, as you need to have a sufficient area to
         | capture rainwater. Depends on the interpretation of `small` and
         | `river`.
        
           | quickthrower2 wrote:
           | An island is defined as small if it is strictly smaller than
           | the smallest island with rivers.
        
           | PaulDavisThe1st wrote:
           | > Depends on the interpretation of `small` and `river`.
           | 
           | I think it's the other way around. If there are rivers, it's
           | not a small island.
        
       | metanonsense wrote:
       | This reminds me of a fun computer science class back in
       | university called "Programming Challenges", which followed the
       | Springer book of the same name. Over two or three weeks, we had
       | to solve one problem every day. That was really fun! Edit: Forgot
       | to mention that the recursive "lake on an island in a lake ..."
       | problem was one of the excercises.
        
         | marktani wrote:
         | haha it was funny to read your comment. I was wondering where
         | the connection was! Thanks for the edit
        
       | sdf4j wrote:
       | I wonder what GPT-4 replies to that prompt
        
         | 4ggr0 wrote:
         | "The largest island in a lake on an island in a lake on an
         | island is Vulcan Point. It is a small rocky island located
         | within Main Crater Lake, which is on Volcano Island. Volcano
         | Island is situated within Lake Taal, which is on the island of
         | Luzon in the Philippines. Although Vulcan Point is not very
         | large, it holds the distinction of being part of this unique
         | geographical formation."
         | 
         | The title it automatically set for the chat is "Islandception:
         | Vulcan Point"
         | 
         | EDIT: GPT 3.5
         | 
         | "The largest island in a lake on an island in a lake on an
         | island is known as a recursive or nested island. There are a
         | few examples of such islands in the world, but the most famous
         | one is located in Canada.
         | 
         | The island is called Victoria Island and it is located in the
         | Nunavut territory of Canada. The island itself is the eighth
         | largest island in the world and has an area of 217,291 square
         | miles.
         | 
         | On Victoria Island, there is a lake called Island Lake, which
         | is approximately 10 miles long and 4 miles wide. Within Island
         | Lake, there is another island known as Mystery Island. Mystery
         | Island is about 0.6 miles long and 0.3 miles wide.
         | 
         | On Mystery Island, there is a small lake known as "Unnamed
         | Island Lake". This lake contains another island which is
         | unnamed and not well documented, but is believed to be the
         | largest island in a lake on an island in a lake on an island."
        
       | [deleted]
        
       | seesawtron wrote:
       | Wikipedia entry [0] aruges there is only one "Islands in lakes on
       | islands in lakes on islands in lakes" in Canada but this article
       | points to another one in Philippines.
       | 
       | [0]
       | https://en.wikipedia.org/wiki/Recursive_islands_and_lakes#Is...
        
         | mkl wrote:
         | The article is out of date since a 2020 volcanic eruption in
         | the Philippines changed things. See eesmith's comment:
         | https://news.ycombinator.com/item?id=35567362
        
       | nickdothutton wrote:
       | But I did eat breakfast yesterday.
        
       | gradstudent wrote:
       | [flagged]
        
         | ndr wrote:
         | https://en.wikipedia.org/wiki/Island#Differentiation_from_co...
        
         | vanni wrote:
         | https://www.britannica.com/story/is-australia-an-island
        
         | 2muchcoffeeman wrote:
         | That's not and island. That's an island.
        
         | tokai wrote:
         | If that counts Afro-Eurasia is by far the largest island.
        
           | cyborgx7 wrote:
           | Beat me to it.
        
       | mercwear wrote:
       | Too early in the morning for this brain twister of a post title!
        
       | yreg wrote:
       | The article would benefit from a uniform style of maps and
       | photos. It would be also nice to see the entire outermost island
       | on the maps.
        
       | EGreg wrote:
       | Can't someone go and make more of this manually inside it ... and
       | it can be the largest X in Y in X in Y in X hehehe
        
       | NeoTar wrote:
       | So someone else was listening to the 'No Such Thing as a Fish'
       | podcast this morning.
        
       | cs702 wrote:
       | Cool. Is that as far as it goes? Or can someone identify the
       | largest lake on an island in a lake on an island in a lake on an
       | island?
        
         | teacpde wrote:
         | This is where ChatGPT makes it easy
         | 
         | > _The largest lake on an island in a lake on an island in a
         | lake on an island is said to be "Lake Matano" located on the
         | island of Sulawesi in Indonesia._
         | 
         | > _Lake Matano is the largest lake in Sulawesi and the ninth
         | deepest lake in the world, with a maximum depth of 590 meters
         | (1,940 feet). The lake is located on the island of Sulawesi,
         | which is itself part of the country of Indonesia. Within the
         | lake, there is an island called "Pulo Mahamba" which has a lake
         | within it called "Lake Towuti". And within Lake Towuti, there
         | is another island called "Una Una" which has a crater lake
         | within it. This crater lake is considered to be the largest
         | lake on an island in a lake on an island in a lake on an
         | island._
         | 
         | Also tried the largest island in a lake on an island in a lake
         | on an island in a lake on an island?
         | 
         | > _The largest island in a lake on an island in a lake on an
         | island in a lake on an island is not officially documented, and
         | it is unclear if such an island actually exists._
         | 
         | > _The concept of nested lakes and islands can create a
         | potentially endless chain, but eventually, the size and
         | feasibility of such geographic features become implausible. As
         | such, it is not practical to identify the largest island in a
         | lake on an island in a lake on an island in a lake on an
         | island, as it may not exist._
         | 
         | > _However, the previously mentioned example of Lake Matano in
         | Sulawesi, Indonesia, is an actual location that fits the
         | criteria of nested lakes and islands. Within the lake, there is
         | an island called "Pulo Mahamba" which has a lake within it
         | called "Lake Towuti". And within Lake Towuti, there is another
         | island called "Una Una" which has a crater lake within it, but
         | there is no known island within that lake._
        
           | ZainRiz wrote:
           | > but there is no known island within that lake.
           | 
           | brb, I'm gonna go toss a big rock
        
           | cs702 wrote:
           | Easy indeed... but is it accurate?
           | 
           | Are you sure the AI model isn't, you know, _making stuff up_?
           | 
           | (I can't find Pulo Mahamba island in Lake Matano on any map.)
        
         | Aperocky wrote:
         | That's going to be some fountain with that layout.
         | 
         | Or a weird pool in a resort somewhere, can't be that hard to
         | make.
        
           | cs702 wrote:
           | Pool-sized, for sure, but I think we're considering only
           | nature-made lakes, no?
           | 
           | Maybe this is as far as it goes.
        
       | eimrine wrote:
       | The last photo is beautiful, three layers of land and two layers
       | of water is clearly visible.
        
       | LegitShady wrote:
       | I remember learning about crater lake waaaay back in university
       | geology, because the way the prof started talking about it was
       | always absurd.
       | 
       | "Crater Lake is not actually a crater, its a caldera. A caldera
       | is a special type of crater..."
       | 
       | "So you're saying its a crater."
       | 
       | "It's a caldera."
       | 
       | "...which is a type of crater."
       | 
       | "Yes but on a test you have to pick caldera from the options."
        
       | voytec wrote:
       | Site's hugged to death.
       | 
       | https://web.archive.org/web/20230414083903/https://www.elbru...
        
       | rbrown wrote:
       | My brain hurts
        
       | ryukoposting wrote:
       | Having fun imagining how someone would go about researching this.
       | Make a Wikipedia crawler that looks for lists of lakes on each
       | island. For each lake, read its wikipedia article to find each
       | island. Repeat.
        
       | Trufa wrote:
       | Someone from Sweden please help me, there I learned that you can
       | say something like
       | 
       | "O in a" which means island on a river. (Im sure im butchering
       | it, but I'm not to far away)
       | 
       | Maybe you can make this look insane :)
        
         | state_less wrote:
         | I grew up on one of those islands on a river. The flow of the
         | river passing like a stream of time.
        
         | kzrdude wrote:
         | The sentence:
         | 
         | > I aa a e o, a i oa a e a
         | 
         | mentioned in the other comment is understandable to a swedish
         | speaker, but it's written half-phonetically. The words i, a,
         | and o are properly spelled, however.
        
         | valvar wrote:
         | That is indeed true!
         | 
         | The most famous example can be found at the bottom of this
         | page: https://www.alphadictionary.com/fun/tongue-
         | twisters/swedish_...
         | 
         | a: stream
         | 
         | o: island
         | 
         | i: in
         | 
         | a: not correct, but used to represent dialectical pronunciation
         | of "ar", i.e. "is"
        
           | korla wrote:
           | Further: e: dialectal version of "det", i.e. "it" oa, aa:
           | adding an a on the end of a noun is a dialectal way of
           | expressing "the 'o'" and "the 'a'", respectively.
        
             | kzrdude wrote:
             | Wouldn't "e" just be a contraction of "en" in this
             | sentence? Is it "det" in the dialect?
        
       | keeganjw wrote:
       | If the site isn't working for you, try this:
       | 
       | https://archive.ph/gDsQA
        
       | AlbertCory wrote:
       | This reminds me of something I did once here:
       | 
       | What country has the highest lowest place?
       | 
       | ChatGPT does know the answer to this, which you probably don't
       | unless you've seen this question before.
        
         | darknavi wrote:
         | I'd think somewhere like Nepal that is up in the mountains.
        
           | yamtaddle wrote:
           | Well it's gotta be landlocked, and it'll probably be small.
           | 
           | Wikipedia reveals that it's... Lesotho. Sure enough,
           | landlocked and small. I'd never have guessed it, because I
           | didn't realize that part of South Africa was a big
           | mountainous plateau.
           | 
           | Nepal evidently has some _quite_ low points, as it 's nowhere
           | near the top of the list. Bottoms out at 59m/194ft.
           | 
           | https://en.wikipedia.org/wiki/List_of_elevation_extremes_by_.
           | ..
           | 
           | Sort by minimum elevation, descending. The "Lesotho" page
           | confirms its #1 status for highest-lowest-point. It wins by a
           | _large_ margin.
        
           | AlbertCory wrote:
           | So you would think.
        
       | aardvark179 wrote:
       | I miss my GIS days and getting topology bugs from the national
       | land survey of Finland.
        
       | Forbo wrote:
       | I'm getting to taken to https://www.elbruz.org/blank.html when
       | trying to visit the link, anyone else? I thought it just didn't
       | like me using a VPN at first, but it does it even without that.
       | Might have gotten the hug of death.
        
         | croisillon wrote:
         | nope, got https://www.elbruz.org/empty.html instead
        
           | Forbo wrote:
           | Now I'm getting that, too. The fact it changed is even
           | weirder.
        
         | ollemasle wrote:
         | Here is an archived version of this page:
         | 
         | https://web.archive.org/web/20230414083903/https://www.elbru...
        
       | [deleted]
        
       | ljf wrote:
       | Similar HN posts from the past:
       | 
       | 2015 https://news.ycombinator.com/item?id=9104777
       | 
       | 2014 https://news.ycombinator.com/item?id=7902628
       | 
       | 2011 https://news.ycombinator.com/item?id=2317624
        
         | dang wrote:
         | Thanks! Macroexpanded:
         | 
         |  _Recursive Islands and Lakes_ -
         | https://news.ycombinator.com/item?id=30263137 - Feb 2022 (1
         | comment)
         | 
         |  _Recursive Islands and Lakes_ -
         | https://news.ycombinator.com/item?id=23504158 - June 2020 (2
         | comments)
         | 
         |  _An Island on a Lake on an Island on a Lake on an Island_ -
         | https://news.ycombinator.com/item?id=9104777 - Feb 2015 (2
         | comments)
         | 
         |  _An Island within a Lake on an Island within a Lake on an
         | Island (2011)_ - https://news.ycombinator.com/item?id=7902628 -
         | June 2014 (8 comments)
         | 
         |  _Largest island in a lake on an island in a lake on an island_
         | - https://news.ycombinator.com/item?id=6154898 - Aug 2013 (5
         | comments)
         | 
         |  _Two islands in a lake on an island in a lake_ -
         | https://news.ycombinator.com/item?id=2317624 - March 2011 (1
         | comment)
         | 
         |  _Islands in lakes in islands in lakes ..._ -
         | https://news.ycombinator.com/item?id=1580779 - Aug 2010 (56
         | comments)
        
         | igyigyigy wrote:
         | This was a recurring set of posts back when Digg was popular
         | too
        
           | ljf wrote:
           | Yeah, I actually thought it had been posted more recently (in
           | the last 5 years) with a bigger discussion thread, but I
           | couldn't find it. Interesting regardless!
        
       | menssen wrote:
       | I thought this was going to be about "Moose Boulder," whose
       | existence was (rather unconvincingly, I think) "disproven" a
       | couple years ago, and which begs the interesting question about
       | how we define "Largest Lake."
       | 
       | https://www.atlasobscura.com/articles/moose-boulder-debunked
        
         | alhirzel wrote:
         | I thought the same; the alleged Moose Boulder is in my general
         | back yard area and I've thought about doing some "citizen
         | science" on my next trip to Isle Royale.
        
       | kimburgess wrote:
       | You can go another layer deep too:
       | https://en.wikipedia.org/wiki/Recursive_islands_and_lakes#Is....
       | 
       | It's lake islands all the way down...
        
         | [deleted]
        
         | javajosh wrote:
         | ...and all the way up, if you consider Earth as an island in
         | the lake of the solar system, which is of course an island in
         | the galaxy, which is an island in the local group, etc.
        
       | silverfrost wrote:
       | returns an empty page for me
        
         | hardlianotion wrote:
         | Looks like the owner was frightened away
        
       ___________________________________________________________________
       (page generated 2023-04-14 23:00 UTC)