According to @CoinMarketCap, Vitalik Buterin stated that occasional temporary loss of Ethereum finality is acceptable provided no incorrect block is finalized, commenting after a recent Prysm client bug (source: CoinMarketCap on X, Dec 11, 2025). In Ethereum proof-of-stake, finality marks blocks as irreversible and the protocol prioritizes safety over liveness, meaning avoiding finalizing a wrong block is the top priority (source: Ethereum.org, “Finality” and “Safety vs liveness” documentation). For traders, a temporary loss of finality delays when transactions become irreversible, which postpones on-chain settlement for users and protocols that depend on finality until it is restored (source: Ethereum.org, “Finality” documentation).