Recently, I saw on the blockchain those orders that go straight out and then immediately come back. My first reaction wasn't "Opportunity is here," but rather "Who's paying tuition." Sandwich/arbitrage is basically just grabbing the slippage profit. You think you've made a trade, but in their eyes, it's just fees plus a snack. Even if TVL is high, it's useless; if real income mainly relies on this friction, it's lively but won't last long.

By the way, I thought of the NFT royalty water wars—everyone arguing over whether creators should get paid or if secondary markets should be more liquid. But the most stable "creators" on the chain are actually these order-sniping bots... quite ironic.

I'm just making some patches now: small trials, wider liquidity ranges, don't chase hot trends and slip in. Small fixes first, to make myself less easy to sandwich, and don't think about defeating MEV in one shot, anyway.