1/ Nice to see more in-depth articles investigating the extremely important role randomness plays in blockchains
h/t @aparnalocked
However, IMO this analysis of randomness is incomplete
https://www.tokendaily.co/blog/randomness-in-blockchains …
I know Tendermint favors safety over liveness, which is applaudable. But it has its own problem. Its strategy is to fall back on social consensus. In any case, the safety vs liveness tradeoff is a fundamental problem to PoS that doesn't exist for PoW. Most solutions are hacks.
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... that attempt to work around this flaw, at the cost of adding a huge amount of needless complexity. And they are all bandaid solutions.
Thanks. Twitter will use this to make your timeline better. UndoUndo
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yes because PoW family currently doesn't provide absolute finality. It doesn't have the problem because it doesn't even provide that property.
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"finality" is a PoS invention & a total illusion. Just because someone terms something "final" doesn't mean it's actually "final" ;-)https://twitter.com/hugohanoi/status/953346280134029312 …
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the concept of finalization has existed in distributed systems for a long time. The terminology may be more recent but not the concept. For a deeper understanding of finality in PoS vs PoW look at thishttps://twitter.com/AriDavidPaul/status/1035337279219347456 …
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I'm not going to have a debate that has been had plenty of times before haha. https://twitter.com/AriDavidPaul/status/1035585570846715906 … is a wonderful thread to explain the subtle differences.
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haha we’re citing Ari for distributed system expertise now? no offense but Ari doesn’t know what he’s talking about
“endogenous non-probabilistic finality”? Really? Again, there’s nothing “absolute” about PoS absolute finality. -
PoS “finality” is 100% revertible under scenarios such as long range attacks, private key attacks or network partitions. Just be a PoS node, go offline for a year & see how you will tell among many chains, which chain is “final” chain.
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PoS alone never provided finality, PBFT did. Anyway, I think we can agree to disagree on what we mean by final. This is becoming a less theoretical more ideological debate.
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I'm generally trigger-happy because I'm frustrated with all the PoS discussions of randomness that say nothing about unforgeable costliness