My previous habit of "seeing a pool and wanting to jump in first to grab a position" was actually just fear of missing out, thinking that if I didn't act quickly, I would be humiliated by the market... Turns out, when I actually tried to sneak in, I realized that block builders/packagers see retail investors as just exploitable profit.

Now I think retail investors should understand this: the transactions you send out may not be included in blocks in the order you want; others can insert you in the middle; so-called bundling is just grouping several transactions together so that builders insert them in the order you provide, which can reduce the chance of being sandwiched, but doesn't mean "safe profit." If you're not doing arbitrage/liquidation that relies on sorting, studying too deeply can make you start fantasizing that you can "play the mechanism."

Recently, discussions about testnet incentives, points, and whether the mainnet will issue tokens are the same—more and more, I find myself getting caught up in interactions and spamming transactions, only to be exhausted by transaction costs and attention costs. Anyway, my current principle is: if you don't understand, don't pretend to; try to use limit orders, chase fewer trades, and avoid competing for on-chain hot spots if possible.