Re:Earth-like planet spotted orbiting Sun’s closest star
by brimble on Friday February 11, 2022 @12:51PM
(#30304569)
The Mars backup plan seems kinda dumb to me because Mars is worse as is than all but the very worst post-apocalyptic Earth scenarios.
Just build bunkers here and staff them in shifts. Much cheaper.
Your remaining threats for which Mars would be better than "ruined" Earth are something like a grey goo event, or an asteroid so large that it liquefies much of the crust (killing everyone in all your bunkers). So, a fair bit bigger than the one that killed the Dinosaurs.
I am very interested in watching people try to colonize Mars, but find the "backup for Earth" argument ridiculous, especially if presented as something urgent.
Just build bunkers here and staff them in shifts. Much cheaper.
Your remaining threats for which Mars would be better than "ruined" Earth are something like a grey goo event, or an asteroid so large that it liquefies much of the crust (killing everyone in all your bunkers). So, a fair bit bigger than the one that killed the Dinosaurs.
I am very interested in watching people try to colonize Mars, but find the "backup for Earth" argument ridiculous, especially if presented as something urgent.