[HN Gopher] Permutation City (1994)
       ___________________________________________________________________
        
       Permutation City (1994)
        
       Author : RafelMri
       Score  : 392 points
       Date   : 2024-02-09 11:18 UTC (1 days ago)
        
 (HTM) web link (www.gregegan.net)
 (TXT) w3m dump (www.gregegan.net)
        
       | k__ wrote:
       | Pretty awesome book.
       | 
       | Would be cool if someone could recommend sci-fi that equally
       | good.
        
         | hcarlens wrote:
         | Yeah, this book was incredible and the tech in it has aged
         | extremely well. Have you tried any of Ted Chiang's books?
         | They're also great hard sci-fi. Another one that plays with
         | similar ideas to Permutation City is the Bobiverse series by
         | Dennis E. Taylor.
        
           | k__ wrote:
           | I read Bobiverse which was pretty good, at least I liked all
           | but the last book.
           | 
           | Thanks!
        
         | myaccount80 wrote:
         | My fav sci-fi books are:
         | 
         | Ubik by Philip K Dick
         | 
         | Dark Matter by Blake Crouch
         | 
         | Recursion by Blake Crouch
         | 
         | Highly recommended
        
         | Weidenwalker wrote:
         | If you enjoyed Permutation City, you'd probably also like ,,The
         | Metamorphosis of Prime Intellect" by Roger Williams!
         | 
         | It explores a similar premise of a post-singularity future
         | (though the mechanism is superintelligence rather than cellular
         | automata/mind uploading), but rather than imagining exactly how
         | we'd get there, it tries to imagine what human flourishing
         | would look like in a world of perfect abundance!
        
           | Cacti wrote:
           | Oh, is that the one with the incredibly explicit, and
           | incredibly unnecessary, sex based around the authors
           | obsession with fucking dead bodies and fucking and
           | impregnating his daughter?
           | 
           | I'm very far from a prude, but JFC. Its clearly the authors
           | vehicle to play out his fantasies, masquerading as a
           | scientific-fi novel.
        
             | gpvos wrote:
             | You could try his other writings, such as The Curators,
             | which I just finished and can recommend. It has some sex in
             | it but much more normal, and the violence is mostly
             | abstract (like destroying a planet by teleporting it into
             | its star). Available at his website http://localroger.com/
             | .
        
               | Cacti wrote:
               | Thanks for the rec, but my issue is less with the book
               | and more with the author. And his non-existent editor.
        
             | MattPalmer1086 wrote:
             | Not sure we are talking about the same book here. It's
             | certainly quite twisted, with people taking out death
             | contracts that allow them to die painfully (but they are
             | ressurected by the godlike AI every time). There's also
             | torture and other unsavoury things.
             | 
             | To me, this was not unnecessary, but quite fundamental to
             | the story. Everyone was trapped by the AI who would not let
             | anyone come to harm without their permission anyway, and
             | nobody could die. Various people tried to push back against
             | these constraints in creative but disturbing ways.
        
               | Cacti wrote:
               | I was going to post the final few pages of the book here
               | as one example, but it's way more graphic than I
               | remembered, so I won't.
               | 
               | But nothing at all was served by us reading about how
               | deftly the main characters 13 year old daughter blew him
               | until he was hard enough to ride. Or the main characters
               | musings about their two (very underage) children having
               | sex and how he was totally ok with it. Or the long
               | section about the wife urging him to impregnate his
               | daughter. Or the other dozen weird-ass things in that
               | chapter.
               | 
               | There's several more examples like this in the book.
               | 
               | The author is not exactly the first to explore potential
               | consequences of effective immortality, but they are one
               | of the few who was seemingly unable to do it without
               | repeatedly getting to multi-page, graphic, and violent,
               | sex scenes.
               | 
               | Like, if one feels the need for that kind of thing,
               | William S Burroughs and Tom Wolfe already beat that one
               | to death decades ago.
               | 
               | As another example more relevant to this crowd, Altered
               | Carbon covered the exact same subject matter, and did so
               | without needing to write smut for teenage boys.
        
               | MattPalmer1086 wrote:
               | I confess I had forgotten the very end, where they are
               | trying to rebuild the human race with a limited pool of
               | people. It definitely did not need to be that graphic,
               | although it is somewhat in keeping with the generally
               | disturbing themes throughout.
               | 
               | Nevertheless, I enjoyed it as something very different to
               | the usual sci fi fare.
               | 
               | I also liked Altered Carbon, although I found it read
               | more like a hyper violent blockbuster action movie than a
               | novel. Other than they both use ressurection as a plot
               | device, they are very different stories. The violence in
               | it I actually find more gratuitous than in Metamorphosis
               | of Prime Intellect.
        
               | Cacti wrote:
               | Oh, I was referring to the books, not the Netflix series.
               | 
               | I enjoyed Prime Intellect, but I enjoyed it like a
               | mindless action film or a trashy beach book, and I'd
               | never actually recommend it to anyone.
        
         | iainmerrick wrote:
         | It's an oldie (1977), but plays with some similar ideas and I
         | think it really holds up: _The Ophiuchi Hotline_ by John
         | Varley.
        
         | G3rn0ti wrote:
         | > Would be cool if someone could recommend sci-fi that equally
         | good.
         | 
         | You could consider ,,Diaspora" by the same author a good sequel
         | a couple of thousands of years into the future where humanity
         | is but a faint memory called ,,dream apes" as living fossils in
         | this story.
        
           | k__ wrote:
           | That sounds cool.
           | 
           | Thanks!
        
           | nyssos wrote:
           | > where humanity is but a faint memory called ,,dream apes"
           | as living fossils in this story.
           | 
           | Dream apes are the descendants of an extreme primitivist
           | subculture, the "statics" the protagonists visit at the
           | beginning are baseline humans.
        
         | Frotag wrote:
         | Been asking myself the same question for months.
         | 
         | So Egan's stories are basically a mathy whodunit -- start from
         | first (fictional) principles and eventually solve some
         | universe-scale question or crisis. His characters are basically
         | walking textbooks meant for info dumping / FAQing the
         | derivations.
         | 
         | In that light, some similar stories I've found are...
         | - Dragon's Egg (Robert Forward)         - Of Ants and Dinosaurs
         | (Liu Cixin, 3 body problem author)         - The Andromeda
         | Strain (Crichton, more medsci than math)         - Schilds
         | Ladder, Diaspora (other Egan stuff)
         | 
         | The first two are especially similar to Egan's stuff in that
         | the only real character is the civilization / setting not the
         | people.
         | 
         | I've also tried some of the more common hard scifi
         | recommendations like Reynolds and Stephenson, but I personally
         | don't enjoy the dialogue / scenes meant for character
         | development. I guess it's because the stories usually take a
         | human-scale perspective instead of taking a what-if to its
         | reality-bending extreme like Egan does.
        
           | k__ wrote:
           | Hm... I didn't like Cixin or Crichton.
        
           | yencabulator wrote:
           | You should try the old master, Hal Clement. Mission of
           | Gravity is a classic "start from first principles" story.
        
         | cdogl wrote:
         | It's not an easy read, but Blindsight by Peter Watts has some
         | equally unique and compelling synthesis of scientific concepts
         | into a big concept plot.
        
           | bejd wrote:
           | Blindsight hit all the right hard sci-fi notes for me. I've
           | yet to find something that scratches that same itch.
        
             | paul80808 wrote:
             | Second this recommendation. Blindsight hits much harder and
             | faster than Egan - and in my opinion the writing is much
             | tighter. Similar focus on science-based idea exploration,
             | particularly in regards to theories of consciousness, brain
             | structure, probability, and vampires. If you like Egan I'd
             | be shocked if you didn't like watts. He is one of the
             | hidden gems of science fiction and an absolute gift to
             | humanity.
        
           | gpderetta wrote:
           | Blindsight is his best book, but Watts has written a lot of
           | great stuff, I recommend all of Rifters and, for something a
           | bit different, especially the Sunflowers cycle.
        
             | badcppdev wrote:
             | Standard internet Watts warning that the Rift novels have
             | random sexual torture just in case you prefer to avoid that
        
               | gpderetta wrote:
               | Right, yes, especially the last Rifter book made me
               | wonder a bit about the sanity of the author.
        
               | k__ wrote:
               | I read the acknowledgements in some of his books and
               | found him rather dislikeable.
        
               | caskstrength wrote:
               | You might want to read his blog [0] to get more insight
               | into his character. I got the impression that the author
               | is a great and likeable human being that became rather
               | cynical due to his disillusionment with humanity.
               | 
               | [0]: https://www.rifters.com/crawl/
        
           | k__ wrote:
           | Haha, I already read Blindsight
        
           | davely wrote:
           | Oh, boy. Blindsight was a book that made me realize that
           | maybe I like the _idea_ of hard sci-fi more than I actually
           | like reading it.
        
             | mvdtnz wrote:
             | Blindsight is by no means a hard sci fi book.
        
               | davely wrote:
               | Hah, well then, maybe I just don't like vampires!
               | 
               | In all seriousness, I thought I had seen it in a list of
               | "top hard sci-fi books" awhile back and a quick Kagi
               | search seems to imply that a lot of people seem consider
               | it hard sci-fi for whatever reason.
               | 
               | Maybe this means there's still a chance for me.
        
               | MeImCounting wrote:
               | Somebody will always say something like this on any
               | thread anywhere on the internet about any sci-fi. I dont
               | know whats so attractive about gatekeeping "hard scifi"
               | but it must be satisfying since so many people feel
               | compelled to do so.
               | 
               | Regardless Blindsight is a good book and definitely has
               | interesting concepts and good writing throughout.
        
             | matkoniecz wrote:
             | I think that Blindsight was extremely on
             | depressing/grimderp/evil side.
             | 
             | I really like hard SF and will never again read by this
             | author.
             | 
             | > Standard internet Watts warning that the Rift novels have
             | random sexual torture just in case you prefer to avoid that
             | 
             | in thread next to this one is not really surprising me
             | 
             | Also, not really sure is Blindsight actually hard SF. It
             | seems to be soft one at most with a lot getting close to
             | magic with SF styling.
        
               | MeImCounting wrote:
               | Maybe we read totally different books called "Blindsight"
               | by Peter Watts because this sounds like a completely
               | different experience than what I and most other readers
               | have had.
        
               | matkoniecz wrote:
               | The one with sort-of-vampires with epileptic effects
               | triggered by corners, creatures capable of movement
               | starting and completing in way their movement was not
               | noticeable by human brain and curiously trusting people
               | in way that ended in predictable bad ending?
        
               | MeImCounting wrote:
               | Yeah the crucifix glitch is kind of silly though it does
               | have an internally consistent explanation. I feel like
               | maybe you didnt read the notes and references (complete
               | with citations)? Because otherwise you would know this?
               | 
               | Was the ending actually bad? like badly written or bad
               | for the characters? Personally I thought the ending was
               | good. It felt inevitable and also positive. Humanity got
               | to keep living and the main character reached some type
               | of personal growth.
               | 
               | Anyway heres the section from the notes and references
               | that you must not have read about the "creatures capable
               | of movement - not noticeable by the human brain"
               | 
               | For example, the invisibility trick of that young, dumb
               | scrambler-- the one who restricted its movement to the
               | gaps in Human vision-- occured to me while reading about
               | something called inattentional blindness. A Russian guy
               | called Yarbus was the first to figure out the whole
               | saccadal glitch in Human vision, back in the nineteen
               | sixties15. Since then, a variety of researchers have made
               | objects pop in and out of the visual field unnoticed,
               | conducted conversations with hapless subjects who never
               | realised that their conversational partner had changed
               | halfway through the interview, and generally proven that
               | the Human brain just fails to notice an awful lot of
               | what's going on around it16, 17, 18. Check out the demos
               | at the website of the Visual Cognition Lab at the
               | University of Illinois19 and you'll see what I mean. This
               | really is rather mind-blowing, people. There could be
               | Scientologists walking among us right now and if they
               | moved just right, we'd never even see them.
        
           | zeekaran wrote:
           | Semi related: If you like The Thing (1982), Watts' The Things
           | is pretty great:
           | https://clarkesworldmagazine.com/watts_01_10/
        
             | goatlover wrote:
             | Brilliant fan fiction that takes a few liberties, but it
             | would be interesting to have The Thing's perspective if The
             | Thing was made into a series. I think in the movies was
             | just supposed to be cosmic horror who's only real goal was
             | to survive by spreading. Communicating with it would be
             | pointless, unlike in Watt's story, where you have a
             | fundamental philosophical difference based on The Thing's
             | understanding of biology, but you could at least have a
             | meaningful conversation with it.
        
         | asymmetric wrote:
         | One thing you can try when looking for similar books to one you
         | liked, is to check Library Thing:
         | https://www.librarything.com/work/18880
         | 
         | In my non-scientific assessment, it's better than GoodReads.
        
         | spiralx wrote:
         | Stephen Baxter's books are along the same lines, start with one
         | of these:
         | 
         | https://en.wikipedia.org/wiki/Timelike_Infinity
         | 
         | https://en.wikipedia.org/wiki/Time_(Baxter_novel)
        
           | gpderetta wrote:
           | The only think I have read of Baxter is his short story Last
           | Contact[1], but I still think about it very often. Reading
           | the Xeele sequence is in my todo list.
           | 
           | [1] https://en.wikipedia.org/wiki/Last_Contact
        
         | prepend wrote:
         | Completely different style but I think Altered Carbon by
         | Richard K Morgan introduces lots of new ideas and interacts
         | with them realistically.
         | 
         | The first season of the show was good but very different than
         | the book.
        
           | sorokod wrote:
           | The Netflix version is a diluted version of a rough and angry
           | book. The idea of consciousness executed in hardware is
           | explored, including simulated torture in subjective slow time
           | (possibly in one of the sequels: Broken Angels or Woken
           | Furies).
        
             | prepend wrote:
             | I think they also changed the societal and cultural aspects
             | quite a bit. In the book, everything was accepted and there
             | were weren't any "downtrodden." The show changed all this
             | with the meths being super billionaires and then there
             | being lots of poor people. And the whole thing with the
             | rebellion.
             | 
             | Book takashi was an envoy super spy person with immense
             | training that stuck with him through sleeves. Tv takashi is
             | like a rebel/terrorist who just got some training and has
             | personality.
             | 
             | In the book, it was fruitless to fight against the
             | government because what's the point? The tv show seems to
             | want to make a more simple rebels vs big brother.
             | 
             | Still cool, but I think changed the flavor quite a bit.
             | 
             | Second season, of course, is rubbish and I wouldn't
             | recommend watching it to anyone. It's suspiciously horrible
             | given how good the first was.
        
               | sorokod wrote:
               | Not sure about "it was fruitless to fight against the
               | government because what's the point", a rebellion is a
               | worthwhile thing in itself. "Make it personal" [1] is
               | almost a call to arms.
               | 
               | [1] https://www.goodreads.com/quotes/169549-the-personal-
               | as-ever...
        
         | PBnFlash wrote:
         | If you can handle the science changing since publication in the
         | 1930s(!!!) Olaf Stapledon is simply remarkable. "Last and first
         | men" is one of my favorite books for just how unique it is, but
         | "star maker" has some interesting parallels
        
         | ArekDymalski wrote:
         | Let me share several books that brought me a similar level of
         | awe, due to the scope and creativity of the world-building:
         | 
         | 1. Accelerando by Charles Stross - for THE Scope.
         | 
         | 2. Quantum Thief by Hanny Rajaniemi - for the similarly high
         | entry threshold and rewarding experience when you cross it.
         | 
         | 3. Revelation Space by Alastair Reynolds - for a fascinating
         | vision of future human societies.
         | 
         | I'd be happy to find more books like these.
        
           | yboris wrote:
           | _Accelerando_ is amazing; see it being recommended several
           | times in this post!
        
           | gpderetta wrote:
           | I enjoyed pretty much everything from cstross and Reynolds
           | (pushing ice and especially house of suns are great stand
           | alone).
           | 
           | I enjoyed quantum thief but somehow I have yet to go beyond
           | the first book.
        
           | mietek wrote:
           | I read and enjoyed these quite a bit, so let me add a few
           | more to the list.
           | 
           | - "The Fall Revolution" tetralogy by Ken MacLeod: "The Star
           | Fraction", "The Stone Canal", "The Cassini Division", and
           | "The Sky Road"
           | 
           | - "Void Star" by Zachary Mason
           | 
           | - "Singularity Sky" by Charles Stross
           | 
           | - "The Freeze-Frame Revolution" by Peter Watts
           | 
           | - "Perfekcyjna niedoskonalosc" by Jacek Dukaj
           | 
           | - "A Fire Upon the Deep" and "A Deepness in the Sky" by
           | Vernor Vinge
           | 
           | - "The Golden Oecumene" trilogy by John C. Wright: "The
           | Golden Age", "The Phoenix Exultant", and "The Golden
           | Transcendence"
           | 
           | - "Gnomon" by Nick Harkaway
           | 
           | - the Culture novels by Iain M. Banks
        
         | marginrabbit wrote:
         | People have already mentioned qntm, but I'll put another plug
         | in for "Valuable Humans in Transit" https://qntm.org/vhitaos
         | 
         | Sol Quy with monthly short stories:
         | https://solquy.substack.com/p/111123-the-gunslinger
         | 
         | Adrian Tchaikovsky's "Children of Time" series is fantastic.
         | 
         | Vernor Vinge can be a bit variable, but I would start with "A
         | Fire Upon the Deep"
        
           | zeekaran wrote:
           | Children of Time is great. Children of Ruin was a lot of fun,
           | but I was convinced by friends Children of Memory wasn't
           | worth it.
        
             | ohlookcake wrote:
             | Children of Memory is my favourite in the series! If you
             | liked the first two (#1 was significantly better imo), you
             | should 100% go for the third
        
         | sat0ri wrote:
         | Have you read Gibson's "Sprawl" and "Bridge" trilogies? I read
         | them > ten years ago and haven't read any sci-fi since, these
         | books kinda put a subconscious "it does not get better, better
         | diversify into other genres" attitude into my brain and
         | personally I'm OK with that. Was reading a lot of sci-fi before
         | that.
        
         | _dain_ wrote:
         | Novella, free to read: _The Epiphany of Gliese 581_
         | 
         | https://borretti.me/fiction/eog581
         | 
         | > _A linguist, a chemist, and a comparative psychologist
         | explore the ruins of a dead superintelligence._
        
       | VikingCoder wrote:
       | Yup, I enjoy this book.
       | 
       | If you enjoy it, too, might I recommend Fool's War by Sarah
       | Zettel. It's more of a Space Opera, but some similar themes to
       | Permutation City pop up in it...
        
       | surprisetalk wrote:
       | My book review from last September:
       | 
       |  _> Reads like a "consciousness and computers are cool" story
       | written by an engineer. A few incredible ideas padded by weak
       | storytelling and philosophical exposition. Probably would've been
       | better as a short story._
       | 
       | [0] https://taylor.town/books#permutation-city
       | 
       | If you like this book, I recommend _Accelerando_ , _Piranesi_ ,
       | Dick's _Ubik_ , and Ted Chiang's collections.
        
         | Al-Khwarizmi wrote:
         | Glad to see Ubik mentioned. While far from unknown, it
         | typically takes a back seat to other works by Dick, and IMHO
         | it's the absolute best. It is unsettling in a way comparable,
         | although different, to Kafka.
        
           | surprisetalk wrote:
           | Agreed. Speaking of underrated works from cyberpunk authors,
           | you may be interested in William Gibson's non-fiction essay
           | collection _Distrust That Particular Flavor_. My hot take: I
           | think Gibson 's non-fiction is much stronger than his
           | fiction.
           | 
           | EDIT: Ooh, that collection includes _Disneyland with the
           | Death Penalty_ : https://en.wikipedia.org/wiki/Disneyland_wit
           | h_the_Death_Pena...
        
             | mandmandam wrote:
             | > My hot take: I think Gibson's non-fiction is much
             | stronger than his fiction.
             | 
             | Wow, that's spicy.
             | 
             | Will def check those out though.
        
               | surprisetalk wrote:
               | Here's an even spicier take:
               | 
               | Although less prescient, _Seveneves_ was a better read
               | than _Cryptonomicon_.
        
               | jacquesm wrote:
               | Let's hope it is less prescient. If it isn't... global
               | warming will be the least of our problems.
        
               | ianmcgowan wrote:
               | You shut your mouth! :-)
               | 
               | Actually, if you said the first 2/3 of Seveneves was a
               | better read than Cryptonomicon, then maybe..
        
           | edanm wrote:
           | I'll have to disagree on this one. I'm a big Phillip K. Dick
           | fan, and have read _many_ of his works (though it 's been a
           | while), but I found Ubik to be a slog and didn't really enjoy
           | it.
           | 
           | To anyone reading this - I'm not saying don't read it - it's
           | a beloved book! I'm just saying, if you read it and don't
           | enjoy it, keep in mind that you might be like me and enjoy
           | his other stuff more.
        
             | riffraff wrote:
             | I'm with you on this, I liked the ideas in Ubik, but I
             | found it really hard to go through it compared to other
             | Dick works, but of course everyone is different.
        
         | gpvos wrote:
         | I liked the expansion of the ideas. I was bored a couple of
         | times so it could be compressed a bit into maybe a novella half
         | the size of the book, but a short story would have left me
         | wanting.
        
         | selimthegrim wrote:
         | Why Piranesi? Seems more straight up fantasy.
        
           | surprisetalk wrote:
           | To me, the main distinction between fantasy and sci-fi is
           | world-building vs. idea-exploration.
           | 
           | This book feels more like the deep exploration of a cool
           | idea, which is why I'm recommending it in this context :)
        
           | brookst wrote:
           | Piranesi is fantasy the way Kafka is fantasy. Which is to
           | say, kinda, if you squint. But mostly it's allegorical.
        
         | alexpotato wrote:
         | I read Accelerando recently and it's great.
         | 
         | Hard to believe that it was written in 2005 given the one scene
         | where the main character is walking around generating multiple
         | interlocking crypto contracts to store money for his daughter.
        
           | gpderetta wrote:
           | Yes, very prescient. Also the VR glasses with embedded AI and
           | independent subagents seems almost something that you could
           | build today.
        
           | cstross wrote:
           | It was _published_ in 2005 -- actually I wrote the 9
           | novelettes that went into it from 1998-2003 (they were
           | originally published in Asimov 's SF magazine from 2002-2004
           | before I assembled and rewrote them to make the book).
        
             | __MatrixMan__ wrote:
             | Blew my mind in the best way. Thank you.
             | 
             | There's a line in there that feels like it could pop up in
             | a permutation city sequel:
             | 
             | > ... running a timing channel attack on the computational
             | ultrastructure of spacetime itself, trying to break through
             | to whatever's underneath...
             | 
             | Does that idea come up anywhere else in your work? If so,
             | I'd go read it.
        
               | shabble wrote:
               | _Scratch Monkey_ may have some vague notions along those
               | lines, if I remember rightly: https://www.antipope.org/ch
               | arlie/fiction/monkey/index.html
        
             | alexpotato wrote:
             | Not going to lie, getting a comment from THE AUTHOR of a
             | book I greatly enjoyed is now one of the highlights of my
             | 10+ years of being on HN!
             | 
             | I should add: every time I hear the phrase "state vector" I
             | think of Accelerando.
        
             | yboris wrote:
             | Thank you for your work! Last time I praised _Accelerando_
             | on HN you commented that I should read _The Rapture of the
             | Nerds_. I read it shortly after and loved it!
             | 
             | https://en.wikipedia.org/wiki/The_Rapture_of_the_Nerds
        
         | NoMoreNicksLeft wrote:
         | No one reads Greg Egan for the character building or any of
         | that other literary bullshit.
         | 
         | This is the novel that introduces the idea that a simulation
         | universe need not have another universe simulating it. Hell,
         | it's the only novel that has that idea. There is more insight
         | here than we could extract from a thousand other authors,
         | philosophers, and thinkers. But who cares, the characters were
         | sort of cardboard and he has the whole r/menwritingwomen thing
         | going on.
        
           | UniverseHacker wrote:
           | Neal Stephensons Anathem is also based on these same ideas-
           | specifically the concepts of timeless physics, and the idea
           | that mathematical and physical existence are identical.
        
             | NoMoreNicksLeft wrote:
             | Thanks. I'll put that one on my reading list. Haven't read
             | but one of his before.
        
               | marcellus23 wrote:
               | Anathem is, I think, Stephenson's best book. Definitely
               | worth checking out.
        
               | ianmcgowan wrote:
               | 'The Diamond Age' is my favorite, but perhaps because
               | it's one of the rare Stephenson's that sticks the
               | landing. Anathem is amazing, and worth reading just for
               | the parable of the fly-worm-bat...
        
               | marcellus23 wrote:
               | The Diamond Age is my next-favorite after Anathem. Both
               | are excellent books.
        
             | savingsPossible wrote:
             | read the two, had not connected the dots. Thanks!
        
               | UniverseHacker wrote:
               | I also recommend the non-fiction physics book "The End of
               | Time" by Julian Barbour. It explains these ideas
               | directly, and inspired Stephenson to write Anathem.
               | 
               | Weirdly, I happened to be reading all 3 of these around
               | the same time, not initially realizing they were
               | connected.
        
           | zupatol wrote:
           | I justs finished reading the book and the idea that a
           | simulation universe need not have another universe simulating
           | it indeed baffled me. How do you make sense of that? I was
           | disappointed there wasn't a clearer motivation for it.
        
             | NoMoreNicksLeft wrote:
             | > How do you make sense of that?
             | 
             | Chew on it for awhile. It's worth it. The explanation
             | provided was sparse, but sufficient to justify.
        
             | AgentME wrote:
             | (spoiler warning for others!)
             | 
             | Durham's "dust theory" is basically that every possible
             | universe is simulated an infinite number of times across
             | space and time within our universe as Boltzmann brains (he
             | doesn't call them this but his idea of random bits of dust
             | randomly computing things is equivalent), so actually
             | running a simulation containing mind uploads on a computer
             | ourselves is unnecessary to allow consciousness to exist
             | within the simulation.
             | 
             | Durham describes the theory with a few more steps, like his
             | idea of "launching" which I can't help but think Maria is
             | correct in calling unnecessary. I think the story is trying
             | to communicate that Durham's theory is subtly wrong or
             | incomplete, especially when the surprising event happens at
             | the end. I think the explanation for the surprising event
             | at the end is (heavier spoilers ahead!) that there's a mix
             | of Boltzmann brains running two different versions of
             | Permutation City (one where Permutation City and the A-life
             | universe are artificial simulations with arbitrary
             | complicated physics and starting states exactly as we saw
             | them be designed within the story, and one where the A-life
             | universe is natural with a simple unified underlying
             | physics and starting state and Permutation City is an
             | artificial simulation/construct within it with a
             | complicated starting state) which have been running in
             | parallel and producing equivalent conscious experience, but
             | by the end of the story, the latter version of Permutation
             | City is simpler and therefore simulated in proportionally
             | more Boltzmann brains than the first version. The latter
             | version exists more, so when the conscious experiences of
             | these two versions of Permutation City finally diverge, the
             | story follows the latter version.
             | 
             | (I'm pretty confident in this reading of it. The story
             | makes a regular point in talking about the complexity of
             | the artificial simulations containing mind uploads and how
             | much they're unlike the simple unified physics of our
             | world. The point is brought up in a way as if the author or
             | characters expect it to have significance; the surprising
             | event at the end of the story is this point's significance
             | finally being seen.)
        
           | goatlover wrote:
           | By more insight do you mean pure speculation? I could say Liu
           | Cixin has more insight than a thousand other minds with his
           | Dark Forest and dimensionality, but again it's all
           | speculative fiction.
           | 
           | Also, some people actually like well-written characters. I
           | know it sounds strange.
        
         | caskstrength wrote:
         | > If you like this book, I recommend Accelerando, Piranesi,
         | Dick's Ubik, and Ted Chiang's collections.
         | 
         | Thanks for the recommendations. I read and liked most of the
         | books in your list, so I'll likely also appreciate the ones I
         | haven't.
         | 
         | EDIT: I would also recommend Watts' Blindsight.
        
           | brookst wrote:
           | Blindsight is such an underrated gem.
        
       | rollulus wrote:
       | I loved this book. It's the sort of book that made me
       | occasionally pause and think about the ideas presented in it.
       | Boltzmann brains still fascinate me. The spot market for CPU
       | power was visionary. When reading it again when I was older I
       | only found the characters a bit weak.
        
         | NoMoreNicksLeft wrote:
         | > Boltzmann brains still fascinate me.
         | 
         | It's ok. You fascinate them too.
        
         | vagab0nd wrote:
         | > The spot market for CPU power was visionary.
         | 
         | Absolutely. Not to mention the use of proof of work, just 2
         | years after the idea was actually proposed. Very ahead of its
         | time.
        
       | patchtopic wrote:
       | A timeless classic.
        
         | UniverseHacker wrote:
         | I see what you did there
        
       | gmuslera wrote:
       | If you like this one Diaspora seem to have extrapolated some of
       | this ideas and went several step further (and then added much
       | more), and Zendegi that is a lot more modest in extrapolation and
       | tries to be more realistic (and emotional).
       | 
       | He have also a lot of mindblowing short stories. The collection
       | I've read by him was Axiomatic, that had many great ones.
        
       | cdogl wrote:
       | Egan is the only great Australian science fiction writer I'm
       | aware of. I principally recommend Diaspora for far future post-
       | human history with a strong focus on physics and maths, and
       | Quarantine which is a sort of heist thriller with a unique
       | quantum physics hook in a relatively near future Northern
       | Australia setting where First Nations people have gained
       | independence and positioned themselves as an Asian financial /
       | biotech hub.
       | 
       | Egan's prose, characterisation and plotting are often weak, but
       | almost every page has a new creative concept.
        
         | anileated wrote:
         | Egan's Diaspora is a strong book that I'd definitely recommend
         | to hardcore sci-fi lovers.
        
         | andyjohnson0 wrote:
         | > Egan's prose, characterisation and plotting are often weak,
         | but almost every page has a new creative concept.
         | 
         | I agree with all of that. I was thinking recently about how
         | Egan compares to Neal Stephenson after some discussion of his
         | (NS) fiction here a few days ago [1]. They both (imo) are weak
         | at characterisation etc. - but to me Egan's work is among some
         | of the best sf I've ever read [1], wheras I find reading
         | Stephenson an ordeal. I think that's down to the depth of the
         | ideas that Egan explores, but I'd be interested in what others
         | think of how he compares to other authors.
         | 
         | [1] https://news.ycombinator.com/item?id=39287616
         | 
         | [2] _Permutation City_. _Diaspora_ , short works in collections
         | like _Luninous_ , etc.
        
           | ahartmetz wrote:
           | IMO, Egan's prose and plotting are not notably bad.
           | Characters are probably his weakest point. Plus, Egan knows
           | when to stop rambling, or rather, he doesn't ramble. As
           | opposed to the other guy.
        
         | hmahncke wrote:
         | Greg Egan as great! Two other Australians you might try are:
         | 
         | Terra Nullius by Claire G. Coleman, about what it's like to be
         | colonized.
         | 
         | Souls in the Great Machine by Sean McMullen, about what it's
         | like to be part of a computer.
        
           | googamooga wrote:
           | Thank you so much for recommending both authors! I'm a huge
           | fan of Egan and would really appreciate to explore the
           | Australian sci-fi scene more.
        
           | cstross wrote:
           | Also worth noting is the work of the late George Turner (d.
           | 1997), notably _The Sea and Summer_ and _Beloved Son_.
        
         | mycologos wrote:
         | _Diaspora_ is my favorite Egan book. _Permutation City_ seems
         | to get talked about more, but the dust theory stuff just felt
         | implausible, and it has one of the worst sex scenes I 've ever
         | read. Maybe it's because _Diaspora_ is less concerned with
         | anything as abstract as consciousness and more interested in
         | how different forms of life play out, which I find fun when it
         | 's done well.
        
           | 75th wrote:
           | The sex in that sex scene is supposed to be cringingly bad.
           | Supposed to be uncomfortable to read. Did you think it was
           | poorly done, or was it just _too_ uncomfortable-on-purpose?
        
         | adamgordonbell wrote:
         | Big Fan of Egan's short stories. I feel like they are his
         | strongest work and maybe because they can lean more on ideas.
         | Luminous about math grad students discovering some secrets in
         | math is pretty great.
         | 
         | Wang's Carpets which became Diaspora is mind blowing.
         | 
         | Zendegi is an interesting novel by him I never see anyone
         | mention. I enjoyed it and the characters are a bit more
         | developed. It also has a Eliezer Yudkowsky stand in as the big
         | bad guy i seem to recall. Which made me chuckle.
        
           | badcppdev wrote:
           | I think of Zendegi quite often when I think about the debates
           | surrounding digital companions, etc. I don't think the book
           | had great commercial success.
        
           | edanm wrote:
           | I'm a big fan of Egan, having read a few of his books and a
           | bunch of short stories. Personally, Zendegi was the weakest
           | of his books by quite a bit. (Still good, just... not great.)
        
         | gpderetta wrote:
         | My standards are likely lower than yours, but while agree that
         | his characterization is not the strongest, I do like his prose
         | and plotting.
        
         | admissionsguy wrote:
         | > Egan's prose, characterisation and plotting are often weak
         | 
         | I sort of agree, but personally I like the rawness of it. For a
         | similarly unrefined yet intellectually stimulating writing,
         | check out Gregory Benford who used to be a professor of
         | physics.
        
         | prepend wrote:
         | I've liked every Egan book I read but also want to mention
         | Distress. I got shipped it accidentally when I ordered Diaspora
         | and the seller told me to keep it.
         | 
         | It's set in the "near future" so probably 2020 since it was
         | published in 1998 and does a good job, I think, of talking
         | about things that are happening now- third world empowerment,
         | body augmentation, transgenders, precision pharmacy,
         | biohacking.
         | 
         | And some things we don't have yet- artificial island nations,
         | self-autists, custom engineered plagues.
         | 
         | I like it because it's one of those books that stuck with me
         | for describing tech that "we should and one day will have" in
         | that Egan described a "pharm" that compounds medication on the
         | fly to precisely medicate us. For example, it will give you
         | stimulants with your vitamix but have to counter it the next
         | day based on how your body performs. I can't wait for that and
         | hate having to wait days to adjust meds. I feel similarly about
         | Stephenson's metaverse description and young lady's illustrated
         | primer, and nanodrones, and cryptocurrency. And Doctorow's
         | "comm" device that he described a few years before the iPhone.
        
           | cdogl wrote:
           | Distress also has a short passage explaining the collapse of
           | the collapse of CBDs and inflation of the suburban property
           | market and cost of living due to remote work, set in an area
           | of suburban Sydney that's now not far off Egan's predictions.
           | Few hard science fiction authors of recent decades can pull
           | that off, as the 21st century has shown that our 20th century
           | science fiction tropes are either already here (computing and
           | networking revolution, hydrogen bombs, DNA sequencing) or
           | will likely not materialise for centuries (space
           | colonisation, mind uploading). Egan has a talent for
           | speculating about little details of life that illustrate a
           | very different world.
        
         | mvdtnz wrote:
         | Egan is prolific and his quality is quite uneven. I loved
         | Permutation City, Diaspora and Dichronauts (although the latter
         | had a weak story). But other books like Scale and Phoresis are
         | downright bad. It's so hard to pick which Egan books to read
         | because often the ones that sound the most interesting are the
         | worst.
        
         | BLKNSLVR wrote:
         | Going back a while, but I really enjoyed The Resurrected Man by
         | Sean Williams.
         | 
         | I have a few other books of his, some seem sci-fi, some seem
         | fantasy, but haven't read them yet.
         | 
         | Seems he's not been idle:
         | https://en.m.wikipedia.org/wiki/Sean_Williams_(author)
        
       | jharohit wrote:
       | Greg Egan is an acquired taste of hard SF. I would highly
       | recommend someone who wants to get in to start here - it is short
       | stories and some of his very best. Also one of my best cover of
       | sci fi books
       | 
       | https://www.amazon.com/Best-Greg-Egan-Stories-Science/dp/194...
        
         | adamgordonbell wrote:
         | Agreed. He's strongest I'm his short stories. I have two
         | collections of them.
        
       | ChrisArchitect wrote:
       | (1994)
        
       | ajuc wrote:
       | It's great classical sci-fi. Reminds me of Lem, Watts, Dukaj.
       | Ideas and science matters more than special effects, action and
       | characters.
        
       | peniswobbler wrote:
       | Just finished it! It's so good.
        
       | Doches wrote:
       | Fun to see this on HN today; I just finished it last night, on a
       | recommendation from a friend. It was great, and left me full of
       | unfinished thoughts -- just what you want from a good SF yarn.
       | 
       | For folks who enjoyed the ideas in it I can heartily recommend
       | qntm's short story Lena (https://qntm.org/lena), which explores
       | some of the same ideas but with a hefty dollop of (implied, but
       | all the more intense for it) psychological horror.
        
         | joshmarlow wrote:
         | That's a great short story. The clinical ambience of it's
         | description really amps it up. Real Black Mirror stuff.
         | 
         | I haven't read Permutation City (on my list) but I _really_
         | enjoyed Disaspora by the same author (Greg Egan). Similar
         | themes from what I gather.
        
           | gattr wrote:
           | More specifically, in _Permutation City_ mind uploading is in
           | its infancy, while in _Diaspora_ it 's a run-of-the-mill
           | tech.
           | 
           | I'll add _Schild 's Ladder_ to the recommendations.
        
         | dzikimarian wrote:
         | On the side note - most of qntm's works have these small,
         | interesting ideas behind them - really satisfying to read.
        
         | pavel_lishin wrote:
         | Egan's "Instantiation" series of short stories is also probably
         | up a similar alley - available in his collection of the same
         | name.
        
         | edanm wrote:
         | Can confirm - I'm a huge fan of Greg Egan and specifically
         | Permutation city, and also a huge fan of qntm's stories. Lena
         | is probably the most famous, though not even the best ("I don't
         | know Timmy" is better IMO).
         | 
         | Also, I finally read qntm's Antimemetics division and, while it
         | is a bit lacking in the end, it is one of the most "oh wow this
         | is a crazy good idea" stories I've read in years.
        
           | zeekaran wrote:
           | Make sure to read Ra as well. One of my favorite webfics.
           | https://qntm.org/ra
        
             | LeifCarrotson wrote:
             | It's one of my favorite webfics too, so I got a hardcover:
             | 
             | https://www.amazon.com/Ra-qntm/dp/B096TRWRWX
             | 
             | Have this in my personal library as well as a (paperback)
             | of Permutation City. I think it's awesome they're published
             | online but there's something special about having it in
             | print too.
        
             | ajmurmann wrote:
             | I just read the Antimemetics division and qntm's short
             | story collection. I loved the short stories and first
             | ~40-60% of the Antimemetics Division and felt it then got
             | too crazy and abstract. The "magic is real" thing has new
             | worried as I usually avoid fantasy. Do you think I'll still
             | like Ra?
        
               | AceJohnny2 wrote:
               | I read Ra and I loved it, but it's imperfect. It could
               | use an editor.
               | 
               | Antimemetics, being SCP-related, comes with a hefty
               | dollop of magical realism.
               | 
               | Ra, to me, felt like a rocket ride as new ideas, twists,
               | and exponentially escalating stakes get thrown at you.
               | The pacing is very jerky, and I can very much understand
               | if people just nope halfway through.
               | 
               | In particular, the characters... suck (my apologies, Sam)
        
               | ajmurmann wrote:
               | Characters sucking is a common complaint about hard scifi
               | which I can very much live with and am used to. Thank
               | you!
        
               | lxgr wrote:
               | It's as far away from fantasy as magic can probably be. I
               | think you might like it!
               | 
               | In some ways, it's even less fantastical than
               | antimemetics, think magic as a sub-branch of advanced
               | physics and in no way mystical.
        
             | grfhtsdfvv wrote:
             | Thank you for this link, I'm really enjoying it.
        
             | lukifer wrote:
             | While if didn't hook me as quickly as Antimemetics or Ra, I
             | also thoroughly enjoyed Fine Structure:
             | https://qntm.org/structure
        
           | Vetch wrote:
           | I'd also wager that "I don't know Timmy" is more thematically
           | related. I feel most of the discussion in this thread glosses
           | over what is most unsettling about Permutation City. It isn't
           | just a book about what it could be like to be a simulated
           | mind, it's most deeply about exploring the disquieting
           | metaphysical consequences of computable minds. I can't think
           | of a story that has as thoroughly scattered my basic grasp of
           | reality as this one. Only Blindsight even begins to comes
           | close.
           | 
           | In "I don't know Timmy" there's a sequence that goes:
           | 
           |  _" Well, we can't exactly turn it off."_
           | 
           |  _" Why not?" asked Tim, halfway to the door, then stopped
           | mid-stride and stood still, realising._
           | 
           |  _" Oh."_
           | 
           | But you _can_ turn it off without consequence and Permutation
           | City explores the disturbing implications of why thoroughly
           | (with a deus ex machina ending to save causal physics, as
           | expected of an Egan story, physics is what has plot armor).
        
             | edanm wrote:
             | > I can't think of a story that has as thoroughly scattered
             | my basic grasp of reality as this one. Only Blindsight even
             | begins to comes close.
             | 
             | Absolutely! Very few books have also basically changed my
             | philosophical outlook on something as much as this has (I
             | had the seeds of the idea before the book, but the book
             | really cemented specific concepts around computation and
             | thought/consciousness/identity even mean).
             | 
             | Another book that is fairly different, but has had a big
             | impact on some of my views of things, is the Three Body
             | Problem trilogy (specifically the second and third book).
        
             | ajmurmann wrote:
             | > But you can turn it off without consequence and
             | Permutation City explores the disturbing implications of
             | why thoroughly
             | 
             | Can you turn it off? The entire universe is 100%
             | deterministic and the "stack" of universes in question is
             | based on the same seed data. So if you decide to turn the
             | n+1 simulation off, the same decision will be made in the
             | n-1 universe. The simulation isn't running on some self-
             | replicating automaton like in Permutation City. Of course
             | the universe being 100% deterministic also poses the
             | question if you can "decide" to do anything, since all
             | decisions are already made.
        
           | Severian wrote:
           | I got a copy of the Antimemetics division too after a read
           | through on SCP wiki. Well worth getting a physical copy to
           | support the author.
           | 
           | qntm is becoming one of my favorite authors as well.
        
             | edanm wrote:
             | IIRC I bought it on Kindle for similar reasons.
        
               | wishfish wrote:
               | Just curious if it repeatedly crashed your Kindle? My
               | Kindle (Oasis 2nd gen) was very unhappy with the
               | "redacted" black bars. When a page was full of them, the
               | Kindle just gave up.
        
         | yencabulator wrote:
         | Better link to read (same story, not the first draft):
         | https://qntm.org/mmacevedo
        
           | schubart wrote:
           | Fantastic read, thanks both of you for sharing this.
        
         | maxglute wrote:
         | Good read, feels like it should be structured as an academic
         | paper with made up bibliographies.
        
         | lloeki wrote:
         | Ah, I was thinking of https://qntm.org/responsibility all along
         | the story, and completely forgot about
         | https://qntm.org/mmacevedo (of which lena is the draft)
        
       | peniswobbler wrote:
       | I just finished it. It's extraordinary. It's awesome. It goes way
       | beyond ideas I'd seen half assedly developed before.
        
       | pranay01 wrote:
       | Just finished reading Exhalation by Ted Chiang, and can't
       | recommend it enough. It's a collection of short stories - so easy
       | entry point for beginners as well.
        
         | SamBam wrote:
         | I love Ted Chiang, and enjoyed _Exhalation_ , but personally I
         | would recommend _Stories of Your Life and Others_ as the first
         | book of short stories. I found it had a higher percentage of
         | home runs.
        
           | x86x87 wrote:
           | To me anything I've read from Ted Chiang is a home run and
           | I've basically read all his work.
        
         | jeremiahbuckley wrote:
         | You might like Invisible Planets, Chinese sci-fi short stories
         | compilation. I've read a few of them; Folding Beijing is pretty
         | great.
        
         | yboris wrote:
         | My all-time-favorite collection of short stories is _The
         | Wandering Earth_ by Cixin Liu. Highly recommend, whether or not
         | you liked The Three Body Problem (trilogy)
        
       | alexhornby wrote:
       | loved the dust theory. really stuck with me, bit like the dark
       | forest from three body problem
        
       | loudmax wrote:
       | Greg Egan's Mastodon profile is
       | https://mathstodon.xyz/@gregeganSF He's fairly active there and
       | likes to post math problems.
       | 
       | I liked Permutation City, but Diaspora really blew me away. Every
       | time you begin to get your mind around some radical new concept,
       | Egan throws adds another fold that makes you reconsider
       | everything you think you knew.
        
         | prepend wrote:
         | I think Diaspora has the best description of a valid digital
         | identity. But I still kept thinking I'd never trust my
         | existence to the polis/state keeping my private key private.
         | 
         | In Diaspora if someone steals your private cert then they
         | become you or are at least indistinguishable to everyone else
         | from you. I've never seen a super solid way to prevent this
         | when everyone and everything is digital.
        
           | BLKNSLVR wrote:
           | I thought asking similar lines with Altered Carbon: If you
           | can switch physical bodies, then how can you prove you're
           | you?
           | 
           | Do you have to memorise a GUID? What if you forget it? What
           | is someone else knows yours? If there's no physical link, how
           | is it provable?
        
             | prepend wrote:
             | They skipped this in Altered Carbon and it was just a
             | "rule."
             | 
             | Memorizing a GUID wouldn't work because someone could read
             | it from your memory.
             | 
             | Stephenson did this well, I think, in Dodge with the PURDAH
             | as it was an AI trained on every characteristic of an
             | individual through their life so it was impossible to fake.
             | Still hand waving, but logically consistent hand waving for
             | an id that spans consciousness transferring from biology to
             | digital.
        
       | gchamonlive wrote:
       | I would really like to see writers sell their work DRM free on
       | their pages, or have an open and responsible platform that
       | writers could use for that.
       | 
       | I know it is a hassle to process anything finance-related, but in
       | my region on amazon the book is unavailable and a hard copy isn't
       | an option for me.
       | 
       | It is virtually impossible for me to give money to the author for
       | an e-reader version of the book.
        
         | prepend wrote:
         | Same. Not just for convenience of having drm-free ebooks but so
         | I can have an AI read it to me.
         | 
         | I don't really have a preference for audiobook performers so
         | hate having to buy ebook and audiobook. So I'm happy just
         | feeding a text file into a reader and listening that way.
        
           | macrolime wrote:
           | What AI do you use for that?
        
             | prepend wrote:
             | macOS' "say" command is tolerable. Edge will read documents
             | out to me.
             | 
             | And I've also played around with speechify and natural
             | reader, but am kind of stuck because most of the public
             | domain I want to read already have librevox or some
             | recording available. And I can't feed properly purchased
             | books without a hassle.
        
         | wishfish wrote:
         | I agree with your wish for more DRM-free options. I don't know
         | why a hard copy isn't an option for you. If it's just because
         | you lack the space, then one option would be to order the
         | physical book. Give it away. And download a copy of the book
         | from LibGen. Author gets their money and you get a usable copy
         | of the book.
        
       | bhaney wrote:
       | Permutation City was my introduction to Egan many years ago, and
       | since then I've read nearly everything he's written ( _Scale_ is
       | still somewhere on my unfortunately neglected reading list, but I
       | 'll get to it eventually).
       | 
       | The same captivating exploration of interesting ideas is
       | omnipresent throughout his work, and that's always been why I
       | keep coming back. I think it's important to go into his stories
       | with an open mind towards what literature is allowed to be -
       | namely that it can focus on things other than narrative or
       | characterization without being a detriment to itself. A steak
       | does not need to be as sweet as a cake in order to satisfy a
       | diner, after all. And that's not to say that he avoids
       | interesting narration or character development entirely, but
       | there are definitely stories of his where he's clearly focusing
       | on other aspects, and the choice to do that feels intentional and
       | appropriate to me.
        
         | edanm wrote:
         | Which Egan is your favorite?
        
           | bhaney wrote:
           | It's been years since the last one I read, so it's a bit hard
           | to recall. But the stories that have really stuck in my mind
           | are the results of Egan tweaking some physical law,
           | constructing a universe that might reasonably arise under
           | those physical conditions, and then writing a plausible
           | adventure within that universe.
           | 
           | Dichronauts (2 spacial and 2 time-like dimensions instead of
           | our 3 and 1) and the Orthogonal trilogy (Riemannian spacetime
           | instead of our "Lorentzian") come to mind. I just really like
           | the care he puts into constructing these universes, from how
           | planets form (the worlds in Dichronauts are infinite
           | hyperboloids instead of spheres), to how scientific discovery
           | progresses (as a result of the physics in Orthogonal, light
           | of different frequencies travel at different speeds and
           | visually separate as a common matter of course, which leads
           | to a much earlier understanding of relativity by a fairly
           | primitive civilization). It feels like he's building
           | universes from first principles and taking care to consider
           | every little consequence and detail, which leads to a lot of
           | "Ohhhhh" moments when you encounter something counter-
           | intuitive but then realize it directly follows as a
           | consequence of the initial physics tweak.
        
       | BandButcher wrote:
       | Sweet site thanks
        
       | CapmCrackaWaka wrote:
       | Permutation city is one of those books that "blew my mind". If
       | you read sci-fi recreationaly, you know what I'm talking about.
       | When the author introduces a novel concept which makes you think
       | "holy crap, _what if_???" and then uses that concept to create a
       | compelling story. It's on the top shelf in my library, along with
       | my other favorite books.
        
       | alecco wrote:
       | Greg Egan is the Nintendo-hard of SciFi. You enjoy re-reading
       | many times and every time you figure out something new.
        
       | gafferongames wrote:
       | Egan's short stories are great. Luminous is an excellent
       | collection. I've never been huge fan of his long form novels, and
       | will remember forever the sex scene in one of them that ends with
       | a cramped testicle. Why Greg, why?
        
         | ycombinete wrote:
         | That scene is from Permutation City. I thought it was a nice
         | metaphor for that character's strained relationship with his
         | corporeal self.
        
           | gafferongames wrote:
           | I look forward to the motion picture adaptation of this
           | scene.
        
         | eterps wrote:
         | _> Egan 's short stories are great [...] I've never been huge
         | fan of his long form novels_
         | 
         | Same here, I love his short stories!
         | 
         | IMO short form works better for him because there's so much to
         | think about, even after having finished reading a story.
         | 
         | If someone needs a pointer on where to start I can recommend
         | this thread:
         | https://redlib.freedit.eu/r/printSF/comments/x1i4bj/greg_ega...
         | 
         | I especially enjoyed:                 - The Safe-Deposit Box
         | - Into Darkness
        
       | GeekyBear wrote:
       | I found the concept of computational biology pretty mind blowing
       | in the early 1990s.
        
       | azaras wrote:
       | I do not remember when I read that I was Richard Stallman's
       | favorite book. Then I read it, and I love it.
       | 
       | I tried to find the citation online, but I found that Richard
       | Stallman does not have a favorite book (https://stallman.org/rms-
       | lifestyle.html); anyway, it is a good book with good ideas to
       | think about.
        
       | mindcrime wrote:
       | I thought _Permutation City_ was great. One of my favorite sci-fi
       | reads from the last couple of decades. It 's probably about time
       | to read it again, as most of the details escape me now.
       | 
       | Anyway, I was going to say... I've always thought that folks who
       | enjoyed _Permutation City_ might also enjoy _Glasshouse_ [1] by
       | Charles Stross[2]. The two novels aren't necessarily overtly
       | similar, but I feel like there's a sort of abstract conceptual
       | kinship there.
       | 
       | [1]: https://en.wikipedia.org/wiki/Glasshouse_(novel)
       | 
       | [2]: https://news.ycombinator.com/user?id=cstross
        
         | edanm wrote:
         | I've long wanted to read Charles Stross and somehow haven't.
         | (Well, I read a few chapters of Accelerando years ago and never
         | finished it, despiting liking it quite a bit.)
         | 
         | Do you think Glasshouse is a good place to start with his
         | writing and is representative of his style? I _loved_
         | Permutation City, one of my favorite books.
         | 
         | (I would've asked cstross himself but that would seem too
         | awkward!)
        
           | yboris wrote:
           | I once commented on HN how much I loved _Accelerando_ and
           | Charles Stross responded suggesting I read his _The Rapture
           | of the Nerds_. I read it soon after and loved it. I very much
           | enjoy the genre of people living inside computers; I welcome
           | recommendations.
           | 
           | https://en.wikipedia.org/wiki/The_Rapture_of_the_Nerds
        
             | lxgr wrote:
             | > I very much enjoy the genre of people living inside
             | computers; I welcome recommendations.
             | 
             | "Ra" by qntm: https://qntm.org/ra
        
           | mindcrime wrote:
           | _Do you think Glasshouse is a good place to start with his
           | writing and is representative of his style?_
           | 
           | Well... to me, I'd almost divide Stross' works into two
           | tranches: the "The Laundry Files" books, and everything else.
           | In that regard, I think _Glasshouse_ is fairly representative
           | of the  "everything else" tranche. But even then, there's a
           | fair amount of variance in his works. I wouldn't, for
           | example, necessarily compare _Halting State_ and _Glasshouse_
           | , or _Rule 34_ and _Singularity Sky_. I guess that 's a way
           | of saying that while Stross has his favored themes and
           | topics, he's far from formulaic and I don't feel like you can
           | pigeon-hole his "style" too narrowly.
           | 
           | That said, I haven't read _every_ other work Stross has
           | written, but I 've read a pretty good chunk of them. And
           | almost all of the "The Laundry Files" novels. Me personally,
           | I recommend pretty much all of it. :-)
           | 
           | EDIT: Just realized that there's really a 3rd major tranche
           | of works in Stross' ouvre: the "The Merchant Princes" books.
           | I forgot about those, as I haven't actually read any of them
           | (shame, shame, I know...). All of what I've read of Stross to
           | date is from the "The Laundry Files" series or the
           | "everything else" batch, minus "The Merchant Princes".
        
             | BillSaysThis wrote:
             | Merchant Princes series is about my favorite cstross!
        
               | mindcrime wrote:
               | I actually have the first two or three books in that
               | series on my shelf already, waiting to be read. Just
               | haven't worked my way around to them yet. Soon,
               | hopefully...
        
               | gattr wrote:
               | I love both _The Laundry Files_ and _Merchant Princes_ /
               | _Empire Games_ , and wouldn't mind seeing a high-budget
               | TV adaptation of them.
               | 
               |  _mild spoiler_
               | 
               | At some point there's a bloody Project Orion-type
               | spaceship _taking off the Earth 's surface_.
        
             | KineticLensman wrote:
             | > I forgot about those, as I haven't actually read any of
             | them (shame, shame, I know...)
             | 
             | It's a really great set of stories, nine in total now, and
             | unlike The Laundry Files, a finalised / completed story
             | arc. They evolve quite radically, from an initial portal
             | fantasy (reporter finds herself in an apparently medieval
             | parallel world), via trans-dimensional techno-thriller,
             | multi-timeline developmental economics, to high-concept
             | space war. Highly recommended.
             | 
             | And the Laundry Files has to be the only series I've read
             | where vampires use agile / scrum techniques to source their
             | blood supplies, and where an Elven combined-arms
             | battlegroup make the Waffen-SS look like soft jessies.
             | 
             | Incidentally, the Laundry Files has its own separate spin-
             | off; the New Management series. Also good fun.
        
           | kybernetikos wrote:
           | I think glasshouse is truly excellent, but to me it's not
           | terribly representative of the other works (most of which I
           | also enjoy - they're just different).
        
       | airstrike wrote:
       | OK, I stared at that animation far longer than I should have...
       | 
       | then went digging and found this other link by the same author:
       | http://www.gregegan.net/SCIENCE/Superpermutations/Superpermu...
        
         | waveBidder wrote:
         | his mastodon presence is full of such things
         | 
         | https://mathstodon.xyz/@gregeganSF
        
       | lfciv wrote:
       | What is this?? Permutation City?!
        
       | dandare wrote:
       | Just came here to say that Diaspora by Gregg Egan is my #1 book
       | ever :)
        
         | aethertron wrote:
         | It's up there for me. But I liked his Schild's Ladder, which
         | plays with some of the same ideas, even more.
        
         | gilbetron wrote:
         | I literally was telling a friend about how the one group needed
         | to warn the group on earth about the danger (keeping things
         | vague deliberately!) and how they had to quickly "evolve"
         | different entities to be able to communicate with the earth
         | beings.
         | 
         | Also the different time scale awareness concept.
         | 
         | Such great ideas!
        
       | Pixelbrick wrote:
       | If you enjoy the 'cute bugs doing science' SF subgenre then his
       | incandescence is definitely worth a look.
       | 
       | https://www.gregegan.net/INCANDESCENCE/Incandescence.html
        
       | Karsteski wrote:
       | Great book. I've read it through twice already! I always
       | recommend it when talking about Sci Fi
        
       | prepend wrote:
       | I remember this book having the concept of people running at
       | different time scales so people in "the real world" would run at
       | 1x and simulated people would run at whatever fraction they could
       | afford. And they could speed up temporarily to have conversations
       | back to real world.
       | 
       | This made me think that sometimes our physical brains speed up
       | and can run at 2x but still only get I/o at 1x. It will be neat
       | that I think at some point we'll be able to boost up to like
       | 1000x with implants or whatnot and think about something that
       | doesn't require any new information and then return to the
       | present with insight to continue the conversation.
       | 
       | I hope this is affordable because it will be so handy for many
       | things. If even to just spend more time staring at the Mona Lisa
       | and contemplating.
       | 
       | It also makes me wonder how people age in fiction where people
       | can freeze time. If someone freeze time for a year, does their
       | body keep aging biologically?
        
       | ryanianian wrote:
       | This book rather profoundly impacted my sense of reality and the
       | kinds of realities that can exist within sci-fi universes.
        
       | ews wrote:
       | Egan has been my favorite author for years. I like his earlier
       | works (like this one) much more than his last books. I have the
       | impression most books he wrote and published in the last 15 years
       | require a Ph.D. in either Mathematics or Theoretical Physics.
       | Permutation City was my absolute gateway drug to his work and I
       | could not stop talking about it when it first came out.
       | 
       | A series that explores similar ideas (although to a much smaller
       | degree) of uploading, artificial life, and transfumanism, I've
       | been enjoying lately is Pantheon. I just wanted to mention it
       | here since I think you guys will enjoy it.
        
         | jeremyjh wrote:
         | Zendegi is a recent book that is quite readable - but I agree
         | regarding most of the others. Permutation City is one of my
         | favorites but I think Diaspora must be my very favorite.
        
         | arisAlexis wrote:
         | I felt dumb and that I couldn't keep up also with Permutation
         | City
        
         | jamilton wrote:
         | I read The Book of All Skies and quite liked it, but yeah, I
         | basically just skimmed over the especially mathy sections. In
         | that one the math is about (spoiler?) how gravity would work
         | with a very unique planet, with comparisons drawn to
         | electrostatics, I think. It was still enjoyable because it's
         | still unique and interesting sci-fi.
        
       | gojomo wrote:
       | If they ever want to shoot an 'Even Blacker Mirror' TV anthology,
       | they should adapt Egan's short stories. 'Axiomatic', especially.
       | 
       | Two stories in that collection from before the modern social
       | internet (1992), with non-internet somewhat fantastic premises,
       | nonetheless often come to mind when observing modern online self-
       | presentational & affiliational dynamics:
       | 
       | * 'The Hundred Light-Year Diary' - a method of receiving tiny
       | (tweet-like!) messages from the future - eventually rationed out
       | to all people! - examines questions of free-will &
       | (self-)deception, at many levels
       | 
       | * 'Unstable Orbits in the Space of Lies' - how much of what you
       | believe/aver is imposed by your neighborhood?
        
       | chrispine wrote:
       | This book sent me into a four-year-long depression and
       | existential crisis.
       | 
       | Best book I ever read. I guess.
        
       | jcul wrote:
       | I recommended this on another HN thread last week.
       | 
       | Probably my favourite book of all time. I'm almost due a reread.
        
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