Last night I kept seeing the words "block builder" and "bundle," and the more I looked, the more it seemed like "inside information," which was a bit frightening: I almost chased a trend on the chain recently, but I didn't think carefully about the possibility of transactions being bundled and inserted out of order; luckily, I felt something was off just before placing the order and canceled. To put it simply, retail investors don't need to study to the level of being able to manually bundle transactions; knowing three things is enough: the transaction you send out may not be included in the chain in the order you want; don't set slippage too high, and avoid market orders that can be easily front-run; for important operations, try to use private/protected channels (use the "anti-front-run/private" switch in your wallet if available), don't cut corners. Recently, before and after the upgrade of that mainstream public chain, everyone is guessing whether projects will migrate or not. I think whether to migrate or not can be set aside for now; during the upgrade window, don’t push your luck, as network congestion and uncertain orderings will mostly hurt those in a hurry. Anyway, now I take a deep breath for two seconds before placing an order—slowing down is actually pretty good.