Lately I’ve been looking into terms like block builders and bundles, and it feels like a lot of people get overwhelmed just hearing them. Put simply, retail investors really don’t need to treat this like a science you have to fully study. You just need to understand this: your trade isn’t necessarily “queued onto the chain by yourself.” In the middle, it may be bundled, front-run, or have its order rearranged—so slippage, the execution price, and even whether the trade can go through can become far less intuitive.

My own usable understanding boils down to three points: first, don’t blindly trust the idea that “if I set a very low slippage, I’m safe.” When liquidity is thin, it can still look ugly. Second, for important actions, use the protection options of a reliable router/wallet (private transactions, MEV protection, and the like)—at least don’t leave yourself exposed when broadcasting to the public mempool. Third, if you see on-chain a sudden burst of a bunch of large orders in the same direction / the same set of bundling patterns, don’t aggressively chase after them. When emotions take over, it’s easiest to get “conveniently” misled into thinking there’s liquidity.

By the way, I’ll vent a bit: now new L1/L2 networks are cooking up incentives to pull in TVL, and what old users say—“mine, extract value, and then sell”—also isn’t without reason… In situations like this, things on-chain are even more likely to get messy, and the trading experience becomes even more of a mystery. I’ll just lower my expectations for now—if I can save a little on friction costs, that’s already a win.