Recently, many people are reciting "data availability, ordering, finality" like a spell, but actually, focusing on one main thread is enough: Did your transaction get published publicly, in what order was it included in blocks, and does it finally count as settled? To put it simply, it's like food delivery: data availability = whether the merchant has posted the menu/receipt so everyone can verify; ordering = who the courier delivers to first and who second (your urgency doesn't matter, they can still be cut in line on the road); finality = once you’ve eaten it, the platform shouldn’t tell you "Sorry, the order has been rolled back." Recently, those large on-chain transfers and hot/cold wallet movements on exchanges are interpreted as smart money, but I just look at whether these three things are stable first; otherwise, it’s just "seeing the courier pass by my door."