Recently, people keep asking me, "What exactly do data availability, ordering, and finality mean?" It sounds intimidating, but actually focusing on one main thread is enough: whether you see this transaction, can others see it too (availability), whether everyone is recognizing it in the same order (ordering), and whether it can be overturned after a while (finality). In simple terms, it's about "visible, correctly ordered, unchangeable"—missing any one of these introduces risk premiums.

By the way, I want to complain that hardware wallets are out of stock... Recently, there have been more phishing links. People are becoming more security-conscious, but don’t just focus on buying devices—before clicking links, think, "Can this thing really be verified?" I now prefer to use on-chain verification processes as templates for reuse, to avoid emotional reactions. Anyway, taking it slow is not a shame.