Recently, I got "scammed by on-chain data" for the third time, and my mindset is: I saw the same transfer in Wallet A, but Wallet B's browser hasn't updated yet, and the group chat is already arguing whether it's a rollback... To put it simply, what you see is not the blockchain itself, but the "account of" provided by nodes/RPC/indexers. RPCs queue up, nodes lag by a few slots, indexers re-scan or get stuck, and your balance, holdings, and liquidation line will lag like delayed live broadcast. The more lively the market and the more protocols borrow from each other, the hidden tail risk is in this few seconds to tens of seconds time difference. Recently, modular and DeFi layer narrative developers are quite excited, but on the user side, it's actually more confusing: where does the data come from, who is feeding it, what if the feed is slow... My current principle is: before key operations, check two sources; it's better to be a bit slower than let the "late on-chain" data do my risk control.