Recently, a lot of people have been asking me, “How much do you really need to understand about block builders and bundling?” To be blunt, retail investors don’t need to study it to the level where you can write code. But knowing that the “execution price / order” you see may not be what you think is not enough: some trades get packaged and inserted into blocks, your limit orders get pushed further back, and side effects like slippage, sandwich attacks, and inexplicably extra gas fees can all come from this ecosystem.

My own bottom line is just three things: don’t casually approve any unknown authorizations; for large transactions, try to split them up, set your slippage, and use reliable routing; and when you see large on-chain transfers or unusual movements between an exchange’s hot and cold wallets, don’t get carried away and treat it as “smart money” just because it looks smart. Many times it’s simply transferring assets or hedging—over-interpreting it will only land you in someone else’s bundle.

What I don’t regret is this: I’d rather make a little less, and still make sure I can clearly recognize the risk signals before I hit the confirm button. That’s it for now.