Recently, I've seen people arguing about "block builders, bundles" and so on, saying that retail investors don't understand and will get wrecked. To put it simply, you don't need to turn yourself into an engineer; knowing about three things is enough: First, the transaction you send out may not be included in the block in the order you confirmed it—someone might "bundle" and insert you in the middle; second, if you notice slippage constantly worsening and the transaction prices acting weird, don't blame yourself for being clumsy—maybe you're just a background player; third, if you frequently swap assets on-chain, try to use protected routing/private sending, at least don’t put all your cards on the table.

It's like ordering takeout: placing an order doesn't mean the restaurant will make your dish immediately. There's a "dispatcher" who groups orders along routes—those on the same route are delivered first, the farther ones later... and sometimes someone cuts in line. You don't need to know how they calculate the shortest route, but you should be aware that you might be grouped in.

Additionally, the "yield stacking" of staking and shared security systems has been criticized as a copycat, which is normal. The more you stack, the more it looks like repeatedly covering the same quilt with three layers—whether it's warm or not is another story, but it definitely slows down the response if something goes wrong. Anyway, I now prefer to earn a little less rather than wake up to a black swan event while sleeping.