Ethereum co-founder Vitalik Buterin has suggested using “transaction simulations” and other similar features to improve the user experience and security of Ethereum wallets and smart contracts. 

In a post to X on Sunday, Buterin argued that security and user experience are not separate fields, as both revolve around user intent — ensuring protocols are doing what users intend them to do.

Buterin said an intent-based security approach could involve designing systems that double-check user actions and could apply to Ethereum wallets and smart contracts, as well as more broadly to operating systems and hardware. 

“The user specifies first what action they want to take, and then clicks ‘OK’ or ‘Cancel’ after seeing a…