I was fooled by my own "on-chain market watch" for the third time... Clearly saw that a certain address just moved, but my alert still showed it was stable a few minutes ago. Later I thought about it and it made sense: which node you're connected to, whether the RPC is busy, whether the indexer is queuing—all these can cause the "on-chain" data you see to be delayed, basically like delayed bullet comments when you refresh.

Recently, the L2s are arguing again about TPS, fees, and subsidies. I'm actually more concerned about: where does your data come from, and how quickly is it grounded? During trading, I prefer to look at depth + transactions, using on-chain data as "retrospective clues," rather than getting excited and trying to hold on tight... Cancel orders to save your life, for now, that's the way.