Satoshi Kanazawa is a smarty-pants among smarty-pantses who has authored dozens upon dozens of peer-reviewed scientific articles across multiple fields. And that's on top of his day job at at the London School of Economics and Political Science, and being an honorary research fellow in the Department of Psychology at Birkbeck College, University of London.
What a slacker.
Point is, he's pretty smart. So when he says something like, "Smart people are fucked," (which he would never say because that's the crude language of common folk), it's got some weight behind it.
That was pretty much the thrust of a recent interview headlined "Why Smart People Fail," about his latest book, Why The Intelligent Choice Isn't Always the Smart One, in The Economist's Business Insider.
Most of the problems that we have to solve today—how to excel in school, how to find jobs, how to do virtually everything on a computer—are evolutionarily novel. So intelligent people do well in almost every sphere of modern life, except for the most important things, like how to find a mate, how to raise a child, how to make friends. Intelligence does not confer any advantage for solving all the evolutionarily familiar problems that our ancestors encountered. More intelligent people do not have any advantage in finding mates and often have disadvantages.
Additionally, Kanazawa said intelligent people are more likely to be nocturnal, more likely to enjoy alcohol and drugs, and that intelligent men—unlike intelligent women—are more likely to stick to one sexual partner.
Previous works by Kanazawa include an article called Why Liberals and Atheists are More Intelligent, and a book called Why Beautiful People Have More Daughters.
The rest of the interview and its many non-controversial statements can be read here.