Comment trees in SPAAAAACEEE! (or: stagetrees for all!) (Score 2) 363
How many gigatons of carbon nanotubes is it going to take to build a space elevator?
Maybe we should really be worrying about Elon Musk's carbon harvester bots coming after us as a readily available source of carbon.
Maybe we should really be worrying about Elon Musk's carbon harvester bots coming after us as a readily available source of carbon.