Lately, I keep hearing people talk about block builders, bundles, making it seem like retail investors will get "eaten" if they don't understand. Actually, I think knowing enough to protect yourself is enough: your transaction might not go directly into a block, it could be bundled together and inserted, and someone in the middle can see, adjust the order, or even find a "worse" transaction path for you. To put it simply, you don't need to study how they piece together blocks; just remember: don't randomly authorize, avoid using unknown routing, don't set too large a slippage, use limit orders instead of market orders when possible, and occasionally check who has unlimited permissions in your wallet. Anyway, since others are explaining crypto price movements with ETF fund flows and US stock risk appetite, I increasingly find it noisy. The only thing you can control is your own trading habits—don't treat "habitual trust" as the default setting.