Just saw that kind of "quick swap and get caught" transaction on the chain, and it really kind of broke my defense… You think you've caught an arbitrage window, but outside that window there's a line of people waiting for you to ignite. To put it simply, this sandwich thing is just using your slippage as others' fees. Now I see large swaps, I tend to get scared first, preferring to split orders, limit slippage, or even just not chase at all.

Recently, testing on the testnet feels quite similar: everyone is betting on whether the mainnet will issue tokens, but the most stable returns often come from contributing interaction volume + gas for others. The opportunity isn't gone, but I have to ask first: am I arbitraging, or am I just raw material for liquidity and fees… it's a bit tricky. Anyway, I'll first fill in the chart of positions, time, and emotions, so I don't blame the market later.