From cavemen on Earth to cavemen on Mars. The circle of life...
Moving asteroids or building telescopes doesn't get Musk investor money. Ultra-rich folks are getting bored standing in line on top of Mt Everest. Many of them would love to have a truly 'offshore' bank, too.At the least we should be focusing the efforts on the hypothetical possibilities that DO offer real potential benefits to the Earth economy like asteroid resources or that can protect Earth, like meteor defense programs. Which are also fantasies - but aren't dead ends like Mars.
I agree with you that if we're just talking in literal terms, no, it's not impossible to colonize Mars. Discussion over.Are Mars colonies impossible or improbable?
SpaceX has it's whole purpose as getting man to Mars, rocketry and satellites are the paving stones towards that. If he wanted to just get richer but do it in space, making factories, space stations and asteroid mining (with huge deposits of gold, platinum, rare earths etc) would be the prime focus. Setting up a colony on Mars, with a decent possibility that you will be dead by the time it has happened isn't a get rich scheme.Moving asteroids or building telescopes doesn't get Musk investor money.