>>136396521. Even if an asteroid hits Earth it will still be far more livable than Mars. If you can survive on Mars you can survive on post asteroid Earth. Not to mention that Mars lacks an atmosphere to protect it from asteroid making your second basket a shitty basket full of holes. Neither Mars nor Earth would survive a Gamma ray burst.
2. No need to send humans to space for that. Space cowboys are a retarded idea. If robotics ever becomes advanced enough that ten robots can do everything 1 human can do then astronauts will become obsolete.
3. If you want to advance science then you shouldn't want to waste resources on old sci fi ideas about sending rockets to colonize the stars. Rockets will get us nowhere.
4. All continent except for Africa are below replacement levels. Africa will soon be there too. Overpopulation is not a problem, underpopulation is.
>early life on Mars would be harshNot harsh, impossible. Going to war is harsh, being poor is harsh, being deformed/disabled is harsh. Living on Mars is impossible. You need literal sci fi shit to live there.
