Recently, someone is always asking me, “Do block builders and bundlers—should retail traders—need to understand that?” Put simply, understanding enough to protect yourself is all you need: you should know that the transactions you send may not go into a block in the order you want, and that the people packing them might get a quick cut in front of you (front-running/sniping/back-running tactics). The quotes you see might also just be “for your viewing.” Don’t let jargon scare you—remember one thing: don’t run naked large transactions in the public mempool, especially when slippage is high and liquidity is thin. It’s better to split orders, use limit prices, and be less greedy.

AI Agent has been getting hot again lately—there’s a whole bunch of hype about “automated trading + on-chain interaction” that sounds like cheating. I’m actually even more afraid it will lead people to sign permissions or connect RPCs recklessly, and in the end, it won’t be the strategy that loses—it’ll be their wallet being drained. If you really want to use automation, first ask yourself: what step does it actually save you, and what extra layer of risk does it add?

I don’t regret the outcome—I regret pushing through when I clearly felt something was off, thinking, “Everyone else is making money, so I have to get in too.” Anyway, now when I see all the flashy stuff related to bundles, my first reaction isn’t envy—it’s to clean up my own transaction path first. For now, that’s it.