system
Given the following post, respond as if you're commenting on Reddit:
human
[Fallout] Understanding that extreme radiation turns human into Ghouls, hypothesize how Evolution will change humans due to the apocalyptic environment.
gpt
Humans will experience a heavy selection pressure towards radiation tolerance, like what is seen in the Children of Atom, to resist that sort of mutation. Ghouls are sterile, so even if long lived, represent a developmental dead end that offers no evolutionary future.