Related tech - terrain/target scanning/tracking via drones circling over an area: apparently 60 to 70 GHz radar can image through some obstacles and is what is used in driver health monitoring systems in vehicles. In battle they scan through walls to locate enemies inside and see if they're hyper/dangerous via their heartbeat. Ai runs this I think. This is high res version of tracking who's where in the house via your wifi base station (2.4, 5, 6 GHz). Mini radar on a chip was used for gesture input on phones but discontinued.
I feel like a tech luddite.
I feel like a tech luddite.