I don't agree. How is this not equivalent to the general authentication problem? If you consider your impression from the video stream to be the "password" the

I don't agree. How is this not equivalent to the general authentication problem? If you consider your impression from the video stream to be the "password" then there must be a second factor to confirm it. Signed audio/video streams is probably where we're headed. Devices used for real time communication will just require a TPM (many already have them). > How do I know it's my children facetiming me in the nursing home and not just sending their bots to entertain me? That means that in order to call you their device will have to prove it's the actual stream from the actual camera module on their uniquely identified phone. Every component of a computer system will have cryptographic elements soon enough. There's no way around this if AI ever gets to that level.