In the past, whenever I thought about cross-chain, I only focused on "whether the bridge is going to have issues again"... Now, looking at messages passing through IBC, I tend to analyze it first: this time, when crossing over, who exactly are we trusting? To put it simply, there are at least three parts: the consensus of the source chain (it says this transaction really happened), the relay/relayer (it helps you transfer messages, theoretically replaceable but can also get stuck), and the light client/verification logic of the destination chain (it needs to be able to verify clearly). Many bridge failures actually come down to "who proves it + who orders it." Recently, everyone has been complaining about validator income, MEV, unfair ordering, and I can understand: if your cross-chain transaction enters someone else's "queue system," the experience is like being cut in line... Anyway, when I look at cross-chain now, I first ask: who is responsible for message proof, who can maliciously delay or cheat along the path, and if it fails, can I rescue or withdraw myself. That's all for now.