If it was about anyone else on any other subject I'd agree.
Yet the select few that were lucky enough to get up there — and not even as far as Aldrin — really have ulterior motives[0] quite different than selling a few printed pages.
Is it really fair to call those motives ulterior? Pro-colonization people seem to be very up-front about the importance of having a "backup planet" (to ensure the human race continues if something were to happen to our own "fragile ball of life").
Also, he's been pushing for Mars for a while now, even saying a trip back to the Moon would be like reliving our glory days rather than doing real exploration.
