Yes, it's absolutely possible. What's not possible is the society respecting privacy. As a whole, nobody respects it anymore, some even engage in half-assed dev

Yes, it's absolutely possible. What's not possible is the society respecting privacy. As a whole, nobody respects it anymore, some even engage in half-assed devil's advocating about it. People are easy to mislead and so that's what's been done. In the future, privacy will have to be enforced through jammers and Faraday cages. None of the gait and keyboard detection attempts work in field conditions.