Recently, I've seen a bunch of terms like "data availability / ordering / finality" bombarding the space. Actually, just focus on one main thread: what you send out—can others see it, can it be processed in the order you think, and ultimately, does it really count? Basically, it's about whether "my transaction might be hidden, front-run, or reversed." If I had paid more attention to these signals earlier, I probably wouldn't have waited foolishly during a congestion to confirm, only to get front-run and suffer slippage... Anyway, now I prefer to go slower and see if I can verify on-chain. By the way, hardware wallets are out of stock, and a bunch of phishing links are flying everywhere. The more this happens, the less you should rush to click. First, understand the address and signature content clearly.