Just woke up and saw someone talking about block builders and bundles again, feels like retail investors really don’t need to research this stuff enough to write a paper... Basically, you just need to know: the transaction you send doesn’t necessarily go directly into a block, it might be “packed” together with others, and the order might also be arranged by someone else, so don’t be too naive to think that clicking confirm guarantees a fair queue.

For someone like me who sleeps and mines, there are only three essential understandings: first, don’t do operations on the chain that are “just a little bit more and you’ll lose everything” (setting too large a slippage, chasing hot trends and rushing in); second, don’t get too caught up in the interactions for testnet incentives/points, no one can say for sure if the mainnet will issue tokens, don’t turn yourself into fuel just for a few points; third, use tools when you can, set limits when you can, split orders when you can, and if you miss out, so be it—sleeping is more important.