Your doctor cannot sell your medical records to an advertiser. Your lawyer cannot hand your case files to your opponent. These aren't courtesies — they are fiduciary obligations, enforced by law, because the relationship demands undivided loyalty.
Your AI has no such obligation. And your AI knows more about you than your doctor and your lawyer combined.
Jesse Posner — my co-founder at Vora and one of the best applied cryptographers working today — gave a talk at Foresight Institute's Vision Weekend on what he calls Fiduciary AI: the argument that as AI transitions from tool to second self, the question of who controls that AI becomes the defining political question of the next decade.
Watch the Talk
Watch: Jesse Posner | Fiduciary AI: The New Architecture of Freedom — Foresight Vision Weekend 2025
The argument is simple and the stakes are total. Your AI accumulates your health records, your financial history, your messages, your search patterns, the questions you ask at 2am when you think nobody is watching. Whoever controls that AI controls the most complete portrait of your inner life ever assembled. Today, that's a cloud provider. A corporation. A terms-of-service update you didn't read.
Bitcoin taught us what happens when you let someone else hold your keys. The lesson is identical: not your keys, not your mind.
Jesse's answer is architectural, not contractual. You do not solve a custody problem with promises. You solve it with cryptography. Hardware-backed isolation. Privilege separation. A Guardian that holds your private data in a clean room with no network connection — not because we ask nicely, but because the architecture makes exfiltration physically impossible. The same discipline that secured tens of billions in digital assets at Coinbase and Block, applied to the thing that matters more than money: your cognition.
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