3 ms·
> In PoS, once you lose BFT quorum (1/3 of all votes), it's game over. This is not how the Ethereum PoS chain's LMD GHOST fork choice works. If >1/3 drop offli
by vbuterin 5y ago
> In PoS, once you lose BFT quorum (1/3 of all votes), it's game over.
This is not how the Ethereum PoS chain's LMD GHOST fork choice works. If >1/3 drop offline, you stop finalizing, but the chain keeps growing.
- jude- 5y agoNo distributed system is guaranteed to make forward progress if over 1/3 of its voting nodes is faulty, full stop. Once an adaptive adversary controls more than 1/3 of the voting power, they can forever delay the remaining 2/3 of the voting nodes from reaching consensus. Hell, they'd even be able to delay votes from other nodes to slash their stolen stash. From this, I can conclude at least one of the following: * LMD GHOST is incorrect * your understanding of it is incorrect * LMD GHOST is not a BFT consensus algorithm
- deleted 5y ago[deleted]