Sometimes you see people or pictures of people that are look as though they are stupid and oftentimes it turns out to be true (Richard Reid, the would-be shoe bomber comes to mind). In a general sense, can you gauge a person’s intelligence by their looks?
It seems like such a study could be fairly easy to conduct. Show people or pictures of people to a large panel that will guess at their intelligence, then compare the results to the IQ scores. Such a study must have been done but what were the results?
If there is a syndrome that people who are stupid also look stupid then what is the cause of it? Are there identifiable characteristics?
I’m not interested in some isolated cases of people that looked stupid who were in fact geniuses. We know cases are out there. I’m looking for generalities.