Recently, in order to complete a few cross-chain related tasks, I went through the IBC/message passing/bridge stack again as well. The more I look at it, the more I feel that the real question is: “who do you trust when you cross a chain?” In plain terms, it’s not as simple as checking a confirmation once and being done with it. You have to trust that the source chain itself won’t roll back, and trust the relayer (the courier/porter) not to pull any tricks—but relayers are, in many ways, more replaceable. You also need to trust the other chain’s verification logic/the light client not to have any bugs. And if it’s a typical bridge, you additionally have to trust components like multi-signatures, the validator set, pricing/oracle feeds, and so on—layer after layer. Once you think it through, it’s pretty clear.

Recently, everyone has been comparing RWA and U.S. Treasury bond yields against various on-chain yield products. But I’m actually more concerned about whether the “message pathway” behind the yield also introduces new trust assumptions… Anyway, I try to avoid cross-chain steps whenever I can; if I absolutely have to do it, I try to break it into smaller amounts, wait for several confirmations, and just take it slow.