In all fairness, it should be by lottery....Using Logic is nice but....then you have to think someone is playing politics....
The first one up should be someone capable of handling a frightening setback in the narrow shaft, and describing how the next ones up might avoid problems, Cmdr. Navarro said....
“The most able miners will leave first – those who can better describe to the next how they might avoid the potential problems that the capsule might encounter. Then those with illnesses or who suffer from one problem or another. And finally the last to surface are the strongest physically or in terms of their character.”
Last up will be those considered most capable of handling the anxiety of being left behind as their comrades disappear one by one.