Full Idea
Folk psychology fails utterly to explain a considerable variety of central psychological phenomena: mental illness, sleep, creativity, memory, intelligence differences, and many forms of learning, to cite just a few.
Gist of Idea
Many mental phenomena are totally unexplained by folk psychology
Source
Paul M. Churchland (Folk Psychology [1996], III)
Book Reference
Churchland,Paul and Patricia: 'On the Contrary: critical essays 1987-1997' [MIT 1998], p.8
A Reaction
If folk psychology is a theory, it will have been developed to predict behaviour, rather than as a full-blown psychological map. The odd thing is that some people seem to be very bad at folk psychology.