Recently, I've been seeing everyone talk about data availability, ordering, finality—these words. It feels similar to the logic I use for account hygiene: don’t get confused by the terminology, focus on “can the scene be restored if something goes wrong.” Data availability, simply put, is whether the data is actually published on the chain; if it’s not published, you can’t even do an audit. Ordering is about who comes first and who comes later, determining whether a transaction is normal or gets caught in a sandwich attack. Finality is whether this matter is truly settled; don’t believe it if it gets rolled back after a couple of minutes, just like revoking permissions—if it’s not finalized, don’t take it seriously. On the macro side, they’re arguing about rate cut expectations, the US dollar index, and risk assets moving together—up and down together… Anyway, my approach remains the same: isolate new chains and bridges first, test with small amounts, revoke permissions after use, just to sleep peacefully.