Vitalik Buterin, co-founder of Ethereum, has suggested a change to the validator threshold for the Ethereum blockchain. Currently set at 32 ETH, Buterin proposes lowering the threshold to just 1 ETH. This change would allow more individuals to participate in the validation process for Ethereum transactions. The proposal aims to make the network more decentralized and accessible to a wider range of users. This adjustment could potentially have a significant impact on the security and overall efficiency of the Ethereum network.