Viewing profile — 0xfoobar

Agreed that conceptual simplicity is always best, and the current Casper FFG + LMD-GHOST doesn't have provable guarantees yet (though seems to be working in practice). I'm excited …

Indeed! :)

For those interested in understanding the tech rather than the typical bashing things as beneath them, I wrote up a detailed technical explainer of how Ethereum PoS works: https://…

Great question, it's not timestamps but attestations (signed validator votes for pairs of checkpoint blocks) that determines the canonical chain head. This fork choice rule, known …

The Solend drama was at the app-layer rather than the protocol-layer. Solana also runs PoS but its variant is a bit more handwavy and weaker imo, slashing rules are applied in a po…

Great question, PoS actually has stronger guarantees against double-spending than PoW does. For PoW you just need to temporarily rent enough hashpower to do a mild reorg. PoS has a…

Article author here. PoS validators have the power to propose new blocks and attest to the chain head. They cannot change the state transition function to allow false payments, jus…

Article author here. The tradeoffs between centralized control and permissionless primitives are better explored elsewhere, but the dangerously high costs of depending on a fickle …

Article author here. Supermajority attestations and block finalization, as well as withdrawal queues, prevent long-range attacks. To attempt to reorg a finalized block (blocks are …

Article author here. Great questions, should have explored the randomness beacon more. Ethereum uses [RANDAO]( https://github.com/randao/randao ), which is a distributed commit-rev…