The author says: > So smarter people are happier, right? Well, this meta-analysis says no. The linked meta analysis says: > At the macro-level, we assessed t

The author says: > So smarter people are happier, right? Well, this meta-analysis says no. The linked meta analysis says: > At the macro-level, we assessed the correlation between average IQ and average happiness in 143 nations and found a strong positive relationship. ... As for the 'IQ poorly measures solving ineffable, poorly defined problems' - sure. IQ is however strongly correlated with how much money people make. If making a living over decades in a fast changing world isn't a poorly defined problem, I don't know what is.