For years I've expressed my worries on HN and elsewhere that privacy and secrecy will almost be dead when surveillance hardware approaches the size and agility

For years I've expressed my worries on HN and elsewhere that privacy and secrecy will almost be dead when surveillance hardware approaches the size and agility of insects. Hardware lookalikes in the form of say the ubiquitous cockroach or housefly will be very difficult to detect and probably won't be detectable until new technologies are developed to do so. I don't believe I'm being alarmist when one sees the current state of the art, now think what it will be like in say 20 or 30 years from now: https://www.dailymail.co.uk/sciencetech/article-2660255/Worlds-smallest-drone-Robo-fly-weighs-gram.html https://www.dailymail.co.uk/sciencetech/article-2660255/Worl... https://www.nature.com/articles/nature.2013.12926 https://www.nature.com/articles/nature.2013.12926