Lately, I keep seeing words like "data availability / ordering / finality," which sound like exam topics, but actually you just need to follow one main thread: whether the "process" of your transaction can be seen by everyone, who has the right to queue first or second, and whether it is ultimately considered final. Data availability is like "whether the ticket has been archived," ordering is "who cuts in line," and finality is "whether this matter can still be overturned." My mom also asked me: If I transfer out, is it immediately safe? I can only say... depends on the chain and the scenario, don’t be too superstitious about "being packaged." By the way, hardware wallets are sold out, and there are a bunch of phishing links again, which shows that everyone's security awareness has improved, but rushing to act once can be risky; I now prefer to double-check the address twice and save those three seconds. That’s all for now.