Cars already do this kind of comms; Teslas are in permanent communication with head office, and I think the Volkswagen ID3 electric will be as well. Charging by harvesting ambient signals is a thing without needing ubiquitous dedicated charging stations, for very low power uses: https://duckduckgo.com/?q=electronics+charging+from+ambient+...
It won't be many years until the bluebottle fly which came in the window, round the room and off into your house, is indistinguishable from a camera drone from the census bureau, your insurance company, your nosey neighbour. And then many more years until Vernor Vinge's "smart dust".
It won't be many years until the bluebottle fly which came in the window, round the room and off into your house, is indistinguishable from a camera drone from the census bureau, your insurance company, your nosey neighbour. And then many more years until Vernor Vinge's "smart dust".
Check out the size of the cameras on the Tobii 3 eye-tracking glasses, for example: https://www.tobiipro.com/imagevault/publishedmedia/71ru67v90...