[Vitalik Proposes Introducing Transaction Simulation Feature to Enhance Ethereum Wallet and Contract Security and User Experience] BlockBeats News, February 23: Ethereum co-founder Vitalik proposed improving the user experience and security of Ethereum wallets and smart contracts through features such as 'transaction simulation.' Users can first specify their intended on-chain operations and then choose to 'confirm' or 'cancel' after reviewing the transaction simulation results. In addition, he suggested introducing mechanisms such as spending limits and multi-signature authorization to ensure consistency between user intent, expected outcomes, and risk limitations, thereby reducing the likelihood of high-risk operations. However, he also pointed out that defining user intent is extremely complex and achieving 'perfect security' is impossible, calling for multiple methods to verify user intent to enhance system security. Security is one of the 'impossible trinity' of blockchain, alongside decentralization and scalability, which are key challenges. In recent years, the Ethereum ecosystem has focused more on decentralization and scalability, especially the latter.