Verifiability is imo the most underrated property of truly public blockchain networks. On Ethereum, you can permissionlessly run a small machine and convince yourself that billions/trillions of dollars of transaction value (payment, swaps, credit etc) were settled according to committed rules. Not only for L1 but also for L2s. It’s the ultimate security backstop, and it gives the Ethereum network a herd immunity and “eyes on the street” that are hard to beat in the class of fully programmable environments.