This is probably a question I should have asked during the coalaggie invasion... but, fast forward a long ways... when things slow down and people start colonizing, how many people would a colony need to have in order to sustain itself without any outsiders? the more generations there are, the greater likelihood of people with the same DNA reproducing together. you would pretty much be stuck with a bunch of people that are cousins of some degree eventually. How far removed does a cousin have to be in order to reproduce without the risk of a cyclops? 50? 100?