And you just hope that they AI that's sustaining the human life on Mars, doesn't like the AI taking over the earth. I think having a backup of humanity would m

And you just hope that they AI that's sustaining the human life on Mars, doesn't like the AI taking over the earth. I think having a backup of humanity would make world leaders to be more dangerous with their decision making, destroying earth in the process. Why, they have backup of humanity in outer space. And after disaster on earth, they try to restore the backup and realize that restore is not going to work. Any DBA will tell you stories of failing restore and the dread that sets in when that happens, it does happen. My worst fear is that in space we would realize that humans need a certain bacteria in our stomach to develop brain or to just be humans, and our last colony-wide anti-viral shot killed those bacteria's, and that bacteria only is found in cow's milk, cows that eat grass on earth. And then that's it, end of story. I think the physics of space exploration can be worked out, biology is not going to be.