"we" ? There's no we. There's just various groups of people. If one such group of < 10 000 people (spacex) can go off and build transportation to go to Mars, le

"we" ? There's no we. There's just various groups of people. If one such group of < 10 000 people (spacex) can go off and build transportation to go to Mars, let them - no one should deny them to do that. Those same < 10 000 people probably doesn't know nor have the ability to fix all the problems on Earth, but they might be able to get to Mars.