Lately I've been looking into cross-chain bridges again. To put it simply, the "sense of security" for many bridges boils down to two words: multi-signature. Multi-signature isn't bad, but you need to understand that it's more like a spare key—who holds it, how many people are needed, and whether it can be stopped promptly if something goes wrong... these are the key points. Oracles are the same; it sounds mysterious, but basically it's about "who's telling you what’s happening on the other chain." If the feed is wrong, no matter how fancy the system is, it can't be saved.

And that "waiting for confirmation," don’t complain about it being slow. Essentially, it’s using time to exchange for certainty: the longer you wait, the less likely small issues like reorganization or rollback will hit you unexpectedly. Recently, developers are excited about modularization and data availability layers, but for ordinary users, it’s really just one sentence: why do I need to understand so much just to transfer some money? Anyway, I currently do cross-chain transfers with small amounts, in batches, and try to avoid bridges when possible. We’ll talk about this again next time.