Recently, many people have been studying block builders, bundles, and the like, and it feels a bit like... and also like...: like dispatching on food delivery platforms, and like scalpers pooling orders. To put it simply, retail investors really don't need to understand every detail; knowing two points is enough: first, the transaction you send out may not be confirmed on the chain in the order you want, it might be front-run or snatched; second, the more "bundling services" there are, the more it indicates someone is watching that price difference to make a profit. My approach is quite simple: don't chase hot topics during the busiest times, avoid placing orders or slippage that are too easy to be manipulated, and when you see Meme coins and celebrities calling out orders with attention shifts, I'd rather be a bit slower and not take the last step. When things are quieter, I sleep more peacefully.