It was a joke lol <| sep |> The discussion is more about behavior , not about origins . Feral ghouls attack nonghoul humanoids , eat the flesh of those they kill , and at mindlessly otherwise . The idea in Fallout is that regular ghouls are fine , even great to have around really , but they can turn feral . This isn ' t a problem for other ghouls , but it is for places that have accepted ghouls into their society . <| sep |> I know the difference between SIDS and suffocation . And I said SIDS because I meant SIDS . <| sep |> Especially in the realm of an interview question . they want to see these initial wheels turning , not a proof which as of yet doesn ' t exist . I am absolutely certain that the intent of the question was to see if the interviewee would come up with a that one can always get back to 12 and b that stopping as soon as HHT 12 is beneficial . You found the intended solution , of that there is no doubt . I just wanted to point out that it ' s not at all clear that it ' s the best solution .