Maybe they are using them nowI think that there would not be any privacy.If most had time machines.Because time is everywhere.Unless regulated by the government.Doors cannot keep out a time traveler.Time travelers may even have nanotechnology that can spy on you.
I did mean to say that the cameras on board that "insect" would be of the nano type...The scientists tried very very hard to make that "insect" look likeThose are not microscopic machines.Maybe if they were nat sized.They could avoid being identified by a human.
But then what would be power source solar cells maybe.
Time Travel - Viaje en El TiempoI think that there would not be any privacy.If most had time machines.Because time is everywhere.Unless regulated by the government.Doors cannot keep out a time traveler.Time travelers may even have nanotechnology that can spy on you.