I wrote:
> Also, your "Robots" will need to clean 781 million mirrors per month >> (monthly cleaning cycle) in the heat and sand of the desert. >> > > So what? Use 100,000 robots. > That would be 11 mirrors per robot per hour. That seems like a reasonable task even for a slow moving robot. Maybe you need 200,000 robots. So what? I don't suppose they would be much bigger or more powerful than a Roomba. Again, large numbers are nothing to be afraid of. Think of how many hard disks are presently running in Google's servers worldwide: ~1.8 million. 40 petaflops processor capacity. https://plus.google.com/114250946512808775436/posts/gTFgij36o6u The other day on NHK's "Today's Close-up" (クローズアップ現代) they talked "big-data" and worldwide present storage and computatio nal capacity. They said there are roughly as many bytes of data now stores as there are grains of sand on all of the beaches of the world. They are doing remarkable things with big-data flows, such as mapping traffic from GPS enabled transponders to reduce traffic accidents and traffic jams. - Jed
