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#ethereumfoundationdropsposeidonforl1 — Ethereum ($ETH ) officially kills Poseidon after 8 years 🧵 Justin Drake (EF core researcher) just dropped the bombshell: Ethereum L1 is dropping Poseidon — the SNARK-friendly hash that has dominated since 2019, currently securing "billions of dollars across zkrollups & zkVMs" — in favor of classic SHA2 / BLAKE2s . Why? A complete mindset flip: 💥Before: "SNARK-friendly hash" — design a custom hash for $ZK 💥Now: "Hash-friendly SNARK" — build on binary fields (arithmetic over the smallest prime: 2), speaking the native language of traditional hashes Result: 1M hash instructions proven per second on a laptop, with only ~100x overhead. Drake calls it "science-fiction-level cryptography" — powered by Binius (2023) and Flock (06/2026) research. The lean Ethereum roadmap accelerates: 🚀 2027: leanVM in production 🚀 2028: consensus, execution & data layer deployed The post-quantum backdrop: AI is dismantling lattice (HAWK) and isogeny (SQIsign) schemes — hash-based signatures have emerged as the #1 choice for blockchains. Ethereum picks minimal assumptions over waiting years for Poseidon cryptanalysis. Back to basics — this time, proactively. 🏗️ #KospiEntersTechnicalBullMarket #SpaceXShortInterestFallsTo11% #USJulyCPI&PPIDueThisWeek #USJulyPPIFlat