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 …
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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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PBFT has been around for decades and their usage in PoS offers absolutely nothing new in terms of distributed consensus. It's literally reinventing the wheel. Yup, agree to disagree.
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your perspective on the practical attacks are definitely very interesting. Would love your thoughts on future blog posts :)
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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