To be honest, every time I see words like “data availability,” “ordering,” and “finality,” my first reaction is a headache. But then I realized: don’t be scared off by the nouns—this is basically the process of assembling our stained-glass window. Think about it: you’ve got a pile of stained-glass fragments in your hands (transaction data). Before anything else, you need everyone to be able to see those fragments (data availability, DA), otherwise nobody can play together. So who puts those fragments into a picture? The orderer is the one who decides which piece goes first—it determines the order and the rhythm. Proof of work (or some other consensus) is the final step that confirms everything: the glass clicks into place, and the stained-glass window is complete. This is what finality is—if you change it, you have to smash it and start over.

Recently, I saw old players there advising newcomers not to take the last baton. Honestly, what stained-glass assembly fears most is reaching the end only to find that the piece you’re holding is fake glass—looks shiny and beautiful, but it shatters the moment you touch it. Anyway, modularization is what lets these fragments each go to their proper place, and once they’re assembled together, the light can shine through.

That’s it for now.