I looked into some IBC / cross-chain messaging stuff tonight, and my eyes are a bit tired... The more I look, the more I feel that "one-time cross-chain" is actually packaging a series of trust: the source chain doesn't roll back itself, the light client / validator set doesn't cause trouble, relayers are just runners but also afraid of getting stuck; switching to bridges makes it even more straightforward—either trust a multi-signature / escrow setup, trust oracles + validation networks, or trust your misunderstood upgrade permissions. Modularization + DA layer development is exciting for developers, and it's normal for users to be confused. Honestly, the more components there are, the clearer the responsibility boundaries need to be, or else when something goes wrong, everyone just blames each other. Anyway, when I look at cross-chain now, I first ask "Who am I actually trusting," then consider the benefits.