It should also be considered that some people out there are too liberal with slapping the title of 'genius' on people; as an example three people I recall in the past as being called 'geniuses' were Bill Clinton, Boris Yeltsin, and Belinda Stronach. Does any body regard any of these three as being on a par with Machiavelli, Michaelangelo, or Mercer?
(Not sure if Rick Mercer can really be called an intellectual genius, but got to admit he's a genius at comedy...)
There are two big things that make it difficult to study genius:
•The genius label is subjective. Some people insist that anyone with an intelligence quotient (IQ) higher than a certain value is a genius. Others feel that IQ tests measure only a limited part of a person's total intelligence. Some believe high test scores have little to do with real genius.
•Genius is a big-picture concept. Most scientific and medical inquiries, on the other hand, examine details. A concept as subjective as genius isn't easy to quantify, analyze or study.
So, when exploring how geniuses work, it's a good idea to start by defining precisely what a genius is. For the purpose of this article, a genius isn't simply someone with an exceptionally high IQ. Instead, a genius is an extraordinarily intelligent person who breaks new ground with discoveries, inventions or works of art. Usually, a genius's work changes the way people view the world or the field in which the work took place. In other words, a genius must be both intelligent and able to use that intelligence in a productive or impressive way.http://people.howstuffworks.com/genius.htm