Lately I keep hearing everyone talk about block builders, bundles, MEV, and it feels like the atmosphere is once again "only the knowledgeable understand"… Let me pour some cold water first: retail investors actually don’t need to memorize the construction process; knowing three things is enough—your submitted transactions may not be included in blocks in the order you see; some transactions are bundled together and inserted, and the small difference in timing can determine whether you get filled or get front-run; and "what’s seen on-chain" is often just the result, not the process.

In the past, I would focus on various tags and copy strategies from smart money addresses, but now I trust them even less, especially since recently there’s been talk about data tools being laggy or even misleading… Honestly, you might think you’re following a big whale, but it could just be the tail end of a bundle. My current habit is: use private/protected modes whenever possible, don’t be too greedy with slippage, be extra cautious in lively pools, and avoid placing orders that must be filled within one second. Anyway, being a little slower than others is more important than being smarter.