Its 106 yrs (nearly) now since the wright brothers first took to the air and barely 40 since Apollo 11 touched down. So I'd suggest that 100 years is an age to fix those problems in :)
The issue is, I think, that we lost interest in the moon and stars. The space race was driven by politics and so we got there by sheer force. Then it all slackened off again. But I think the next generation will have grown up with enough modern Sci-Fi to think "I wonder if...." and hunger for the sky :)