Recently, when discussing L2, people are often discouraged by words like "data availability / ordering / finality." Actually, just follow one line: the transaction you send, who queues it first (ordering), then where the result is written and whether others can verify it (data availability), and finally how long it takes to truly land and whether it can be reversed (finality). In simple terms, it's about "who has the authority, why trust them, and when it becomes stable." My colleague also asked yesterday if stacking that set of yields is guaranteed to be profitable, and I could only say don’t just look at the yield screenshots—think carefully first: who is actually borrowing the safety, and who do you rely on when things go wrong... Anyway, I’m now more conservative in interactions, and I prefer to understand the process before getting started.