Today, while reviewing the proposal on IBC / cross-chain messaging, I kept thinking that a single cross-chain operation isn't just "click and done." You have to trust that the source chain won't rollback, that light clients / validators can update normally, and you also have to trust that the relayer won't run off (although in theory it's just a carrier, but if it goes offline, that's enough to cause issues). Then further down, there's the application's own verification logic—many bridge incidents, to be honest, aren't because the chain is broken, but because the smart contract's logic for "receiving messages = real money received" is written too loosely.

By the way, I also thought about the recent social mining wave, where everyone keeps shouting "attention is mining." It sounds lively, but when you move attention across platforms, do you really trust the protocol, or just some centralized leaderboard... Anyway, when I look at cross-chain projects now, the first thing isn't speed, but to carefully figure out who I am actually trusting. That's all for now.