Making transactions on the chain in the middle of the night, the more I look, the more I feel that so-called "arbitrage opportunities" are often just entry points for others to pay transaction fees. You chase the price difference with a quick click, and in the next moment, you're caught in a sandwich, with slippage + gas fees deducted, leaving only "Why am I so reckless again." My roommate is still complaining beside me: "This isn't trading, this is just rewarding miners/robots..."

Recently, cross-chain bridges have been hacked again, and there are outrageous prices reported by oracles, everyone suddenly agrees "wait for confirmation," which is quite realistic: on-chain isn't without opportunities, but the chances are usually first fed to faster, more aggressive scripts. Anyway, I now prefer to miss out; when I see abnormal fluctuations, I stop first, check the transaction path and liquidity depth, and don't think of yourself as the protagonist in that 0.1 second.