Recently, I came across a bunch of people talking about sandwiches/arbitrage, saying they want to jump in whenever they see "opportunities" on the chain. Others think they are just picking up money, but in reality, many times you're just paying transaction fees and slippage tuition to faster players... When I see abnormal trades, my first reaction isn't to jump in, but to check the routing, pool depth, and whether the oracle price feed is slow or updating out of sync. Otherwise, you might think you're eating meat, but you could be just serving someone else's bread.

And during major upgrades/maintenance of mainstream public chains, people are guessing whether the ecosystem will migrate. I'm just observing for now: at such times, MEV and price gaps are more likely to be amplified, and when the chain stalls, the first to suffer are usually ordinary traders. Forget it, the less I do, the better. Staying alive is more important than "grabbing opportunities."