Lately, I keep hearing people talk about block builders and bundles. To be honest, I was a bit anxious at first, feeling like if I didn't understand, I would be "eaten up." But after thinking about it, retail investors just need to know what's "enough": as long as you understand that your submitted transactions may not be included in blocks in the order you want, and they might be front-run or re-ordered by others, causing slippage and unfavorable execution prices, so don't force trades in low-liquidity pools, and don't set your tolerance too high; if you need to make large transactions, break them into smaller parts or just trade less. On the macro side, there's also talk about rate cut expectations, the US dollar index, and risk assets moving up and down together, but I don't understand all that deeply... Anyway, my current principle is: first, clearly calculate your controllable costs and risks, and don't blame all losses on the "black box."