Vitalik Buterin, the co-founder of Ethereum, pointed out in his latest blog post that Ethereum needs to undergo three major technological changes for long-term sustainable development, namely Layer 2 expansion, wallet security, and privacy.
It’s not just the protocol’s functionality that needs to be improved, he said. In some cases, the way we interact with Ethereum will need to change fundamentally, requiring profound changes to applications and wallets.
Since there are many different expansion solutions on Ethereum, it is difficult for users to have only one address now, so it is necessary to build a cross-chain solution for Layer 2 blockchain. And this has to happen at the same time as smart contract wallets and privacy are further developed.