I just got a little scared... I almost got frightened again by words like "data availability / ordering / finality," and my hand trembled as I was about to place an order driven by emotion. Later, I thought about it and realized the main point is actually one: whether that transaction you see, that on-chain record, can really be considered "actually written in," and whether someone can sneak in and change the order. To put it simply, can the data be checked by everyone at any time, can the ordering be secretly manipulated, and will the finality be overturned after a while—don't chase the hot soup, first see if it's hot. Recently, those large transfers and hot/cold wallets being interpreted as smart money at the slightest movement, I almost believed it too... but after looking into it, I realized it might just be a move. That's all for now, need to hold back.