Vitalik proposed introducing transaction demo functionality to improve Ethereum's security and user experience.

According to Mars Finance, Ethereum co-founder Vitalik Buterin has proposed improving the user experience and security of Ethereum wallets and smart contracts through features such as "transaction simulation." Users can specify their on-chain operation intentions and then choose to "confirm" or "cancel" by viewing the transaction simulation results. He also suggested introducing mechanisms such as spending limits and multi-signature authorization to ensure consistency between user intent, expected results, and risk limits, thereby reducing the likelihood of high-risk operations. However, he also pointed out that defining user intent is extremely complex, making "perfect security" impossible, and called for multiple methods to verify user intent to improve system security. Security is one of the "blockchain Blockchain Trilemma," ranking alongside decentralization and scalability as a key challenge. In recent years, the Ethereum ecosystem has focused more on decentralization and scalability, especially the latter.