generational ship

 a fundamental problem in a generational vessel is about the biass related to how the people would be chosen to the travel, on a psichological level, but not related to them directly -who could behabe since they would know why they would be there- but, and this is the point, about their descendants. The issue is: if you chose competitive people, with individualistic tendencies that helped them to reach a seat on that ship instead of others, how they would teach their children in a "moral" field? You guess, to be competitive, hard students, etc. , to be like their parents. But without the prize that the behaviour reported to their parents and the heavy weight of never have know earth, never would know the destination, never would leave the ship, but they would need to learn as much as their parents did -again, without the social prize that their parents had- , just to transmit it to other generations that would know the new place. they would feel to be a damned generation, born in space who would die in space, who would learn things that would have not known directly and transmit to a next generation. You need a kind of people for that role that would be very different thant the people that you would have provided, totally different.

https://www.youtube.com/watch?v=yWlpNm1C5gw