Recently, some people have been linking ETF capital flows with the risk appetite of the US stock market, insisting that it's the "only reason for today's gains and losses," which I find a bit exhausting... Anyway, what I care more about is: has your trade been jumped by someone else?

Terms like blockchain builder and bundle sound mysterious, but retail investors only need to know that "someone is packaging a bunch of trades and then deciding who gets in first." Don't bother memorizing mechanism details; honestly, there are only two things: don't chase after rising prices blindly during especially crowded times; try to avoid operations that reveal your intentions (like large on-chain transactions or setting too large slippage). I personally prefer to go slower, wait with an order, to avoid competing in the mempool where I can't keep up.