Recently, many people have been talking about block builders and bundles, and it feels like they are being packaged as "must-know secrets for retail investors"... Actually, I think knowing enough is fine: as long as you understand that your transactions are not necessarily included in the block in the order you see, and someone can bundle transactions to jump the queue, insert them in the middle, or even cause you to experience slippage—that's enough. Don't think of it as a conspiracy theory, and don't expect that two days of research will let you outsmart the builders.

What I care more about is: when on-chain funds become very urgent and crowded (gas fees spike, transactions become rough), that's usually the moment when the "bundling tactics" are amplified. The same goes for RWA; recently, they often compare on-chain yield products with U.S. Treasury yields. To be honest, the yields look similar, but the underlying paths and risks are completely different, especially when the market gets crowded, the first to experience poor performance is your small order. Anyway, my current approach is to chase less, split into batches, and not force my way in during the hottest times.