> Lets not get ahead of ourselves. The ship hasn't flown once. This is the time when forward thinking won't hurt. We don't see significant problems with reachi

> Lets not get ahead of ourselves. The ship hasn't flown once. This is the time when forward thinking won't hurt. We don't see significant problems with reaching this goal - not technical, not economical, not others. There were periods with development of technology - e.g. early airplanes or spacecrafts - which significantly changed the approaches to things, so speculation in worst case would remain just that.