It's been 63 years ago since the first human visited the orbit around earth. Since then, development and research happens faster and faster. We now even have commercial companies who are developing space crafts for humans.
I don't think we've seen even the beginning of how things will unfold. Just 100 years will render a huge difference from today, and today we're already doing things that were unthinkable ~20 years ago (like reusable rockets).
Commercial space flight will become mainstream as soon as it becomes viable to profit from it. Probably via asteroid or moon mining. At that point motivation to be in space will hit its peak. Let's not forget why humans went to orbit and the moon in the first place.
Just a couple hundred years ago, Settlers who risked their lives and spent several months on cutting edge technology (aka wooden sail
boats) to find “new” land would like to have a word.
It's also a bit poetic in that it took 30-60 days to sail from Europe to the New World. When Mars is aligned with Earth, the travel time will be similar. For example, New Horizons was able to reach Mars in 39 days.
Am I missing something? New Horizons didn’t go to Mars, right?
According to this, it also crossed the orbit of mars 78 days after launch, and at that point, it was closer to earth than mars:
I don't think we've seen even the beginning of how things will unfold. Just 100 years will render a huge difference from today, and today we're already doing things that were unthinkable ~20 years ago (like reusable rockets).