That time a utopia collapsed
It was an experiment with rats. They were given a large area, all the food and water they'd ever need, and their every need met.
It went well, at first. Eventually, the "beautiful people" segregated themselves from the "rabble", merely grooming all day, while the "masses" stopped mating and started killing and eating each other.
This, despite having ample room to increase the population size, and unlimited resources.
Yes, they are rats, and we are much more complex. But, at heart, we all have the same basic needs... Even us hyper evolved humans, are really simple creatures at heart that are driven by much the same things as a rat.
And this feeds into a theory I've had for awhile, that suspects we humans are NOT as free willed as we'd like to believe. Quite the opposite, it seems we take these social roles very much against our will.
Another argument for another day, however.