If you have a lot of assets to split, and splitting is easy, it's also easy to create ultimatums. When America was a poor country, people stayed together longer, families lived near each other, conflicts were resolved. You never went to bed angry, it was said.

Not so today. There are many ways in which America is no longer on the upswing but has already arrived. The U.S. has more diversity and equality than France, better health care than anywhere, and so much food the U.S. government is trying to tell 80 million Americans they could be on the road to Type 2 diabetes. People can even overpay to buy Crossfit videos from Greg Glassman, a CEO who funds anti-science activists that are upset that conventional food can't cause cancer.

The anti-science movement is overwhelmingly filled with white, wealthy elites, the alt-right could never hope to achieve so little diversity, and they may be so filled with vitriol because of their economic status.

Being rich may make you intolerant.

Using large-scale surveys and lab work, a new study in Proceedings of the Royal Society B finds that lower class populations are wiser than their middle-class counterparts in their ability to reason about interpersonal matters. The study measured wisdom as the ability to be open-minded, intellectually humble and integrate different perspectives on the issue people reflect on. In comparing social classes and their associated wisdom, the study reveals that more affluent regions and individuals, as well as situations reflecting higher social standing are linked with diminished ability to reason wisely.

It's not a parody in The Onion, poor people may actually work it out because they only have one car.

Driven by economic scarcity, poorer individuals will consider the impact of their decisions on those around them and those with whom they have interdependent relationships. Characteristics of open-mindedness and integrating different perspectives are necessary in order to coordinate with others and share resources.

"This is not surprising when we consider our cultural emphasis on intelligence such as IQ, competency to accomplish tasks independently and the focus on self as opposed to the considerations of others, in the reach for success," said Igor Grossmann, associate professor of psychology at University of Waterloo. "As we continue to focus as a society on independence and entitlement among the middle class, we are also inadvertently eroding wisdom and reasoning in favour of a more self-centered population."