No, the correct conclusion is "I don't know". There is no real evidence one way or the other. Their unfounded speculation about human nature is just as plausibl

No, the correct conclusion is "I don't know". There is no real evidence one way or the other. Their unfounded speculation about human nature is just as plausible as yours. In the interview you can generate a hypothesis, not a conclusion. This reminds me of the "why are manhole covers round" question, where people are judged by their ability to come up with clever wrong answers.