You can bet that "smart dust" is already here, if in limited application. https://www.theatlantic.com/magazine/archive/2016/11/even-bugs-will-be-bugged/501113/

You can bet that "smart dust" is already here, if in limited application. https://www.theatlantic.com/magazine/archive/2016/11/even-bugs-will-be-bugged/501113/ https://www.theatlantic.com/magazine/archive/2016/11/even-bu... https://now.northropgrumman.com/mems-and-smart-dust-the-big-potential-of-a-tiny-future/ https://now.northropgrumman.com/mems-and-smart-dust-the-big-...