Recently, everyone has been talking about modularization and the DA layer—one term after another gets thrown out. Developers are there having the time of their life, while ordinary users are just staring at it all like, “So… what is this again?” I’ve got one main thread: can what you send out be received by everyone (data availability); once it’s received, is it queued in the order people said it (ordering); and finally, is it truly final—no backtracking, no changing the story the next day (finality). Put simply, it’s like making tea: the tea leaves have to be put into the water and visible, the whirlpool has to rotate in an orderly way, and only then can you tell whether the tea is steady and whether it’s actually enjoyable to drink. You don’t need to memorize every term—just keep your focus on these three steps, and you won’t feel uneasy. That’s the way to feel at ease.