It seems like we are all nearly on the same page. n.b. when the author mentioned millions of tiny drones, I immediately pictured my own... https://i.imgur.com/

It seems like we are all nearly on the same page. n.b. when the author mentioned millions of tiny drones, I immediately pictured my own... https://i.imgur.com/LU4jzeY.jpg https://i.imgur.com/LU4jzeY.jpg It probably weighs about 5 grams, mostly due to the battery, which lasts all of 3 minutes (i.e. I wasn't thinking of millions of drones the size of that in the video I linked above)