Post A5SeJOIKRffv0LlOOu by MrManor@fosstodon.org
(DIR) More posts by MrManor@fosstodon.org
(DIR) Post #A5SeJOIKRffv0LlOOu by MrManor@fosstodon.org
2021-03-22T07:10:39Z
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When (rightly) criticizing #bitcoin energy consumption, please note that #blockchain does not use much more energi to calculate, than other forms of checksum calculation. Just like the one keeping your data safe on your harddrive, or in transit over the wire everyday.Tagging your energi critical post with blochchain is like tagging a anti car post #wheels. Yes a car has wheels, but so does your bicycle.
(DIR) Post #A5SeJOlkgHD8TbWtGK by wizzwizz4@fosstodon.org
2021-03-22T07:28:24Z
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@MrManor It actually does; Bitcoin calculates the checksum over and over and over and over and over again, changing the data each time, until the hash is within a certain range. That uses much more energy than calculating a single hash.
(DIR) Post #A5TIdeTA0w8N7z2tto by sotolf@fosstodon.org
2021-03-22T07:52:47Z
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@MrManor Do you have any major examples of blockchain usages outside of alt-coins? It's used synonymously (wrongly) with cryptocoins for many people.
(DIR) Post #A5TIdevsIB6QZ2Tpei by IslandUsurper@fosstodon.org
2021-03-22T13:47:04Z
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@sotolf @MrManor Git commit history is a blockchain. Usually a more complicated shape than a cryptocurrency’s. No one uses “#blockchain” when talking about it though. But @MrManor’s point is people are using the tag to mean cryptocurrency
(DIR) Post #A5TIdfFN7ghNXVbP2u by sotolf@fosstodon.org
2021-03-22T13:49:51Z
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@IslandUsurper @MrManor Aren't git commit history a tree and not a chain? I guess one branch would be a chain, but calling it a chain doesn't lie quite right with me.
(DIR) Post #A5TIdfY9zpjATmOPKa by IslandUsurper@fosstodon.org
2021-03-22T13:52:49Z
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@sotolf @MrManor, like I said, more complicated shape. But each link is based on the hash of what came before it. Chain mail isn’t “a chain” but the links are what make it “chain”.
(DIR) Post #A5TIdfs0o1bhTLgGH2 by sotolf@fosstodon.org
2021-03-22T13:54:53Z
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@IslandUsurper @MrManor So by your definition a linked list and all trees are also "blockchain" that seems a bit too wide of a net to cast to me. For being a blockchain doesn't it have to be distributed and have some kind of distributed consensus algorithm? git doesn't really have that.
(DIR) Post #A5TIdgFlNibcf0nEIK by IslandUsurper@fosstodon.org
2021-03-22T14:03:57Z
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@sotolf @MrManor, so, yes, blockchains are extra fancy linked lists. But not all linked lists can be considered blockchains.
(DIR) Post #A5TIdgco032NoTZdD6 by urusan@fosstodon.org
2021-03-22T15:00:12Z
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@IslandUsurper @sotolf @MrManor This is an interesting perspective. I hadn't really thought about it, but blockchain really does have a lot in common with a system like git. It's even got the distributed aspect (it is DVCS after all)However, the way blockchain is typically defined also includes consensus mechanisms and an open permission-less model, both of which git doesn't have. Instead traditional access control is used, especially for the primary branchShould we have two different words?
(DIR) Post #A5TIiqBDtx72tb87e4 by sotolf@fosstodon.org
2021-03-22T15:01:11Z
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@urusan @IslandUsurper @MrManor We already do, purposeful, and useless :p
(DIR) Post #A5TM3KiWNITLG7ATuS by IslandUsurper@fosstodon.org
2021-03-22T15:38:32Z
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@urusan @sotolf, consensus in Git is usually ad-hoc (primary repo is so because creators said it was, but you can fork it easily). I’d argue that cryptocurrencies function because of blockchains plus the other things you mentioned. Cryptocurrency is a bit of a mouthful, still.
(DIR) Post #A5TQj1OL15RJIirTYu by urusan@fosstodon.org
2021-03-22T16:30:52Z
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@IslandUsurper @sotolf Well, I bring it up because the definition of blockchain as it is actually used is really muddy.Most people on question answering sites responding to the question of whether git is a blockchain say it's not due to the lack of distributed consensus mechanisms, so they clearly believe that is part of the definition.However, people also use ideas like permissioned blockchain, which only makes sense if one accepts the broader definition that includes git as a blockchain.
(DIR) Post #A5TQzgVptiEBT7JYAK by urusan@fosstodon.org
2021-03-22T16:33:54Z
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@IslandUsurper @sotolf I think the definition you are using that includes git is more useful than the cryptocurrency-focused definition.On the other hand, I'm not sure common usage reflects this broad definition.I also don't think using the word "cryptocurrency" for non-currency uses of distributed consensus blockchains makes sense. Blockchain was supposed to be the word to fill that gap.
(DIR) Post #A5TRjdIu9vi4q2Ax3A by urusan@fosstodon.org
2021-03-22T16:42:12Z
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@IslandUsurper @sotolf Also, now that you've pointed it out, a system like git contains 90% of the real value of blockchain systems, with distributed consensus really filling a very niche need.
(DIR) Post #A5TRtbBqsBGzB7d2rA by sotolf@fosstodon.org
2021-03-22T16:44:00Z
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@urusan @IslandUsurper Yup, the addon of consensus doesn't really get us anything other than at least in POW systems a gigantic waste of cycles.
(DIR) Post #A5TVlyUakeMgwu0wca by IslandUsurper@fosstodon.org
2021-03-22T17:27:27Z
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@urusan @sotolf, I hold the belief that popular beliefs can be wrong about things.