Rent the AI; Own the Structure

Models come and go and are rented from vendors; the structure you build is the durable asset you own — so invest there. And this isn't only about the AI model: your model outlives the tool. The data model, the conceptual diagram, the structure of your vault survives every tool that renders it — the diagramming app (Visio, yEd, draw.io), the BI tool, the note-taking app, and the AI itself. Tools are rented and replaced on someone else's schedule; the model is yours and persists across all of them. Own the layer that lasts, rent the layers that don't.