This document discusses three thought experiments about what would happen if groups of people with different moral traits were placed in different scenarios: 1) A good person and an evil person placed on a desert island - The evil person would likely cause harm to the good person. 2) Groups of good people and evil people placed on separate islands - The group of good people would work together to survive and thrive, while the group of evil people would destroy each other. 3) An evil person introduced to an island of good people - This would create a "messy combination" of the outcomes of the first two scenarios, with the potential for the evil person to disrupt and harm the cooperative group of good people.