The Portable Self

I've been running my own data layer for a while. Notes, health logs, work artifacts, conversations. All of it lives in a local markdown database I query through MCP. It's janky. It's not pretty. But it's mine, and it travels with me across every tool I use.

The more I do this, the more I notice every AI company is quietly racing to be the place this data lives. ChatGPT wants your health metrics. Meta wants your relationships. Google has had your email for fifteen years and they're finally starting to use it. None of these are features. They're switching costs disguised as convenience.

The war isn't about which chatbot is smarter. It's about who becomes your data OS. That's the whole game.

And the threshold isn't a single decision, it's a slow accumulation. You let the assistant remember your preferences. You connect your calendar for context. Your work history, your relationships, your reading, all of it starts compounding in one place. Six months in, the context is the product. You're not paying for the model anymore. You're paying to not start over.

This is how the smartphone OS wars ended. Nobody picked iOS or Android for the phone itself. They picked it, and then their photos, their app purchases, their contact graph, their muscle memory accumulated until switching felt like burning the house down. Every AI company knows exactly what this looks like. They're in a land grab for context.

The open, portable version of this is possible right now. The primitives are sitting there. Local-first storage, standardized query protocols, identity layers. MCP is an early form of exactly this. My own setup is proof you can build it. But it takes work that closed ecosystems do for free, so the people who care most about owning their data are also the ones spending the most time managing it. That's its own tax.

The average person will pick the ecosystem that makes them feel the smartest with the least friction. Right now that's OpenAI or Google. Tomorrow it'll be whoever accumulates the deepest longitudinal memory of who you are.

The real unlock is a protocol, not a product. An open layer that lives with the user, not the platform. But protocols don't have growth teams, and that's why nobody's building it fast enough.

When the AI starts finishing your thoughts accurately, the war is already over. Whoever holds your context, wins you.