The Irrationality Within Us

Elly Vintiadis at Scientific American:

The Irrationality Within Us: We like to think of ourselves as special because we can reason and we like to think that this ability expresses the essence of what it is to be human. In many ways this belief has formed our civilization; throughout history, we have used supposed differences in rationality to justify moral and political distinctions between different races, genders, and species, as well as between “healthy” and “diseased” individuals. Even to this day, people often associate mental disorder with irrationality and this has very real effects on people living with mental disorders.

But are we really that rational? ... It seems not. After decades of research, there is compelling evidence that we are not as rational as we think we are and that, rather than irrationality being the exception, it is part of who we normally are. ...