Vitalik proposes introducing a transaction simulation mechanism to enhance Ethereum security and user experience.

Techub News reports, according to Cointelegraph, Ethereum co-founder Vitalik Buterin suggested improving the security and user experience of Ethereum wallets and smart contracts by introducing mechanisms such as "transaction simulation." Vitalik believes that security and user experience are not independent domains; both revolve around user intent, with the core being to ensure that the operations executed by the protocol align with user expectations. His proposed "intent security" solution includes: allowing users to view the simulated outcome of an operation before executing it on-chain, then choosing to confirm or cancel; additionally, introducing spending limits and multi-signature approval mechanisms, allowing execution only when user intent, expected outcome, and risk limits are consistent. This would lower the threshold for low-risk operations while increasing the difficulty of executing dangerous ones.

Vitalik pointed out that defining user intent itself is "extremely complex," which is part of the reason why a "perfectly secure" solution does not exist. Vitalik stated that it is not a flaw in the machine or the designer, but rather that user intent itself is a complex object that even users find difficult to grasp clearly. A common feature of excellent security solutions is allowing users to express their intent in multiple, mutually corroborating ways, with the system executing operations only when these expressions are consistent.