Recently, the narrative around modularization and the DA layer has heated up again, with developers' groups buzzing with excitement, while users are mostly confused: How many more layers are there, and will my transfers be faster… I myself was a bit dizzy from the terminology, but I eventually focused on one main thread: Is your transaction data actually being published properly, who is queuing behind you, and when is it considered “really stable.”

In simple terms, there are three things: DA is like “posting homework on the classroom bulletin board,” no one can pretend they didn’t see it; ordering is like “who gets to get on the bus first,” affecting the user experience and the space for the block; finality is like “the door is locked and cannot be rolled back.” It sounds fancy, but they all answer the same question: Is this transaction truly transparent, fair, and irreversible? Don’t be intimidated by the terminology—just straighten out this main line first, and then add the remaining details slowly.