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hugohanoi's profile
Hugo Nguyen
Hugo Nguyen
Hugo Nguyen
@hugohanoi

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Hugo Nguyen

@hugohanoi

I chain, therefore I am ⛓️

Joined April 2012

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    1. Nick 'Poisonous Sting' Johnson‏ @nicksdjohnson Jan 6
      Replying to @TokenHash @VladZamfir

      I don't see why this is a fallacy; all blockchains are ultimately governed by social consensus on what rules to follow.

      1 reply 0 retweets 2 likes
    2. Hugo Nguyen‏ @hugohanoi Jan 6
      Replying to @nicksdjohnson @TokenHash @VladZamfir

      The difference is that in PoW “social consensus” is required only to choose which initial rules set (“protocol consensus”) to run, after that it’s on autopilot. Whereas in PoS social consensus is continually required whenever there is a protocol consensus failure.

      2 replies 1 retweet 1 like
      Hugo Nguyen‏ @hugohanoi Jan 6
      Replying to @hugohanoi @nicksdjohnson and

      In other words, how-to-resolve-forks rule is baked into PoW (most accumulated PoW chain), whereas it is *not* baked into PoS. The latter would always need a lot more social consensus than the former. Hence weaker security.

      12:14 PM - 6 Jan 2018
      • 1 Retweet
      • 1 Like
      • James Waugh Hugo Nguyen
      2 replies 1 retweet 1 like
        1. New conversation
        2. Nick 'Poisonous Sting' Johnson‏ @nicksdjohnson Jan 6
          Replying to @hugohanoi @TokenHash @VladZamfir

          PoW can only resolve forks where both sides follow the same rules. PoS prevents those same kind of forks from happening in the first place. Neither requires manual intervention when things are running normally.

          2 replies 0 retweets 2 likes
        3. Hugo Nguyen‏ @hugohanoi Jan 9
          Replying to @nicksdjohnson @TokenHash @VladZamfir

          "PoS prevents those same kind of forks from happening in the first place." not really, PoS can only prevent forks from happening if it assumes attackers will remain on the "honest" chain after a fork.

          1 reply 1 retweet 3 likes
        4. Hugo Nguyen‏ @hugohanoi Jan 9
          Replying to @hugohanoi @nicksdjohnson and

          if attackers manage to rewrite ledger history, the fact that they get punished on some other chain doesn't really matter.

          0 replies 0 retweets 0 likes
        5. End of conversation
        1. Hugo Nguyen‏ @hugohanoi Jan 6
          Replying to @hugohanoi @nicksdjohnson and

          and since ledger immutability and the ability to avoid manually choosing versions of history is the whole point of a blockchain, you can argue PoS weakness is fatal.

          0 replies 0 retweets 1 like
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