Reading more about #Zettlekasten, I can see why my Obsidian vault isn't a true Zettekasten system.

Neurons wire differently using #handwriting. Part of the system is in purposely slowing down to review current notes when choosing the best place for a new card.

I don't have to redo my Obsidian vault.

I can start new with 3x5 cards, empty ammo cans (because that's what I have on hand), and a pen. Easy.