Vitalik Buterin: Ethereum can handle temporary loss of finality

According to Odaily Planet Daily, Ethereum co-founder Vitalik Buterin stated in a post on the X platform that occasionally losing finality is not a major issue, as finality is designed to ensure that blocks are not rolled back. If a significant client error causes an occasional delay of a few hours in finality, this is acceptable as long as the erroneous block is not definitively determined, and the chain will continue to operate during this period.

Computer science PhD Fabrizio Romano Genovese agrees with Vitalik Buterin's view that Ethereum will become more like Bitcoin when finality is lost. He explains that Ethereum's finality mechanism is that when a block receives more than 66% of the validators' votes, it is "justified," and if two more epochs (64 blocks) pass, the block is "finalized."

A Polygon spokesperson stated that the lack of finality will affect infrastructure that relies on it, such as certain cross-chain or Layer 2 bridges, but Polygon will continue to operate normally. However, transfers from Ethereum to sidechains may be delayed pending the restoration of finality. AggLayer will also delay transactions from Ethereum to L2 until finality is achieved again.