I think that actually as you increase surveillance the problem gets simpler. If you're always in view of a camera then I can simply track your motion and I only

I think that actually as you increase surveillance the problem gets simpler. If you're always in view of a camera then I can simply track your motion and I only need to recognise you once. Given that I've seen you in your car, I can already narrow things down significantly. > Consistently identifying a single person from a database of 100Ms/billions of people I don't need to, there aren't billions of people who are likely to be at the closest ATM to your house. > constantly gaining weight, growing facial hair, etc But I see you several times every single day. > false positives will become an exponentially bigger problem as you increase the candidate space. To be honest, I think that this is the most likely thing to scare people, that you won't be allowed to fly because a computer made a mistake and everyone trusts it or can't override it. That the police get called when you go to pick up your son because you're the same height and rough build as a child molester who was released from prison yesterday