[meric]

> positive and negative traits and the ability of someone to reproduce.

What's "positive"?

> The actual environment is artificial though, as those families would not be able to survive on their own without support.

I apologise to those who are offended by my stereotyping - If anything, I'd expect it's some of these people who are most able to survive on their own in the scenario of nuclear apocalypse and all major cities destroyed.

In such a scenario people like software engineers on HN, may even have lack the traits for survival (inherited or learned) - many of us do not know how to fix our own cars or grow our own crops.