I thought I would add some interesting thoughts on a few more types of thinkers. I was reading the Revolution chapter in the fascinating book called Chaos by James Gleick and realized here is another interesting example. It talks about the two different types of scientific thinkers. One is the scientific problem solver who believes that using the existing scientific tradition way of learning is all that is needed. The normal science of acceptable style of achievement etc. The other is the independent scientific thinker who strays outside the normal bounds of their specialties and untested disciplines. They accept risk to their careers. Revolutions especially in science arises from their efforts. Stories of discouragement are usually common with this group. This all relates to the new science of chaos and how scientific revolutions occur to create a new science.