Comment Re:Potential dangers (Score 2) 88
The perchlorates are a serious sticking issue. While I continue to be amazed at human ingenuity, the remediation problem for Martian soil seems to be very difficult. Not only that, but the perchlorates are *everywhere*, which means the entire environment is fundamentally poisonous to humans. That doesn't make it impossible, but it raises the bar another notch where we are already potentially dealing with low atmospheric pressure, extremely high CO2 concentration, very low O2 concentration, serious cold, etc. Again, not impossible, but Mars is almost as inhospitable as the Moon.