 um it's time to go in fact it's really been a disappointment as far as i've been concerned from day one um the only i wrote a whole book on this subject leaving earth the only reason you build a space station at this time in human history is to learn how to build an interplanetary spaceship if you're going to put people up in orbit for a long period of time you're trying to figure out how to build a ship that can get them to other planets