Today I keep seeing people talk about “sandwich + arbitrage opportunities.” My first reaction isn’t whether it’s worth it or not—it’s this: what you see is the meat; what I see is someone tallying the knife and fork into the fees. As for this on-chain stuff, it’s not really about eyesight; it’s whether you can be faster, cheaper, and more shameless than a robot... and most of the time, the answer is pretty awkward.

Recently, the narrative around modularization and the DA layer has been heating up again. Developers are getting excited like they’ve discovered a new continent, while users look totally lost: I just want to swap a coin—why do I have to understand data availability first? Anyway, I treat “simplicity” as a trap, especially those “one-click arbitrage” ones. The more relaxed they sound, the more it feels like a liquidation raincoat worn inside out. It’s fine to watch the show, but when you actually go to do it, I still focus on slippage and failure rollback fees—so you don’t end up making a profit that’s only a screenshot while losing real money.