See other comment by me for some basic calculation: https://news.ycombinator.com/item?id=30575702 https://news.ycombinator.com/item?id=30575702 It seems not to

See other comment by me for some basic calculation: https://news.ycombinator.com/item?id=30575702 https://news.ycombinator.com/item?id=30575702 It seems not totally out of the question. My calculation yielded an aperture requirement of 1cm for a blue-ish laser. Which yields a 50m beam at the height of a starlink satelite