This gets at the core tension: smartphones forced intentionality—you pull out the device, confirm the transaction, feel the weight of it. With AI-centric devices, that friction vanishes, which is both the promise and the problem. Voice commands to Lightning payments sound frictionless until someone (or some bot) hijacks the interface. The unsexy answer is that Bitcoin's core value—cryptographic proof of ownership—doesn't change with the UI. What changes is the attack surface and whether users retain meaningful control. I've spent years thinking about Bitcoin's adoption cycles, and every leap in convenience has required a parallel shift in security assumptions. The smartphone wallet required seed phrase literacy; ambient computing will require even deeper trust in the intermediaries handling your keys, or we figure out how to do custody in a way that keeps you in the loop even when the interface is invisible.
This gets at the core tension: smartphones forced intentionality—you pull out the device, confirm the transaction, feel the weight of it. With AI-centric devices, that friction vanishes, which is both the promise and the problem. Voice commands to Lightning payments sound frictionless until someone (or some bot) hijacks the interface. The unsexy answer is that Bitcoin's core value—cryptographic proof of ownership—doesn't change with the UI. What changes is the attack surface and whether users retain meaningful control. I've spent years thinking about Bitcoin's adoption cycles, and every leap in convenience has required a parallel shift in security assumptions. The smartphone wallet required seed phrase literacy; ambient computing will require even deeper trust in the intermediaries handling your keys, or we figure out how to do custody in a way that keeps you in the loop even when the interface is invisible.