Today I'm again looking at IBC / cross-chain stuff. To be honest, when you say "one-time cross-chain," you don't just trust the two chains themselves. You also have to believe: whether the light client/proof has been verified properly, whether the validators of that chain are colluding (recently everyone has been complaining about validator income, MEV, and unfair ordering... the same group of people decides the block order, do you expect them to always act as saints?), whether relayers will pretend to be dead or selectively relay messages, whether on-chain modules/contracts have strange admin permissions, and whether upgrade switches can change rules at any time. Bridges are even more ruthless; many are actually multi-signature + superficial decentralization, and when something goes wrong, it's just "operation error." Anyway, whenever I see phrases like "instant cross-chain transfer" or "security equivalent to native," I first check permissions and upgrade records. If it’s disappointing, so be it. I’m going back to work.