Lately I keep hearing people talk about block builders and bundles, as if it's some kind of mysticism. Basically, retail investors just need to know that "someone will bundle and order your transactions" is enough: don't think that clicking confirm guarantees your transaction will be added to the chain in the order you want, especially when sniping hot spots or chasing in and out, slippage and failed fees can really mess with your head. If you want to understand a bit more, it's mainly: don't casually give your private keys to strange signatures, and don't misuse unknown sources of acceleration/private channels; for large amounts, split the orders, set tight limits or tolerances, and try to use familiar wallets and routing. Recently, funding rates are extreme again, and people in the group are arguing whether to reverse or keep squeezing the bubble... I don't guess either way, prioritizing whether the transaction can "survive" first, sleeping well is more important.