Lately, someone asked me again, "How much do you really need to understand about block builders and bundling?" I think retail investors really don't need to turn themselves into engineers. Just know: the transactions you send may not go directly into a block; often they are bundled together and inserted as a bunch (bundle). The purpose might be to save effort or to race ahead in order, which basically means preventing others from watching your orders in the public pool and inserting their own ahead of you. So, our sufficient understanding is: why sometimes slippage suddenly increases for the same operation, or why the transaction price looks strange even when it seems like nothing is moving—most likely related to "how others are queuing."

By the way, recently, the stacking/sharing yield mechanism for security staking has been criticized as "nested," and I can understand... Layering bundles sounds nice, but on-chain, the actual execution layer, the order and bundling rules become more complex, and the risks are harder to explain clearly.

My colleague just said: I don't care how you bundle, just don't get caught in some inexplicable夹 (sandwich). Anyway, my current approach is very simple: split large orders into smaller batches when possible, avoid chasing prices emotionally, use protected order placement methods when available, and don’t get too caught up in overthinking.