The Psychology of Human Misjudgment, by Charlie Munger

While a tad oversimplified, Charlie Munger’s famous one-liner is sort of like the Occam’s Razor of human behavior – especially at scale. People are generally far more driven by self-interest than by any other factor.
Chris Rempel • Part 2: creating the new frontier – Chris Rempel's Blog
The heuristics-and-biases community has provided us with a stream of studies showing how our mental habits can be used against us and make us look stupid and irrational. They don’t offer a balanced set of studies of how these habits enable us to make discoveries.
Gary Klein • Seeing What Others Don't: The remarkable ways we gain INSIGHTS

The psychological complexity of human behaviour is reduced to a narrow set of assumptions about what people want, which means they design a world for logical rather than psycho-logical people.