Thinking about thinking is a meta concept of course. Thinking is presumably what the brain does and reflection is a form of thinking about thinking. The question of course is whether thinking about hinking is reflexive. It would appear you could think about thinking in two ways: 1) thinking about the process of thought, and 2) thinking about your own thought processes as you are thinking. The second seems reflexive but reflection in itself seems as though it need not be reflexive but could be thinking about a prior thinking event. It is interesting tho think about thinking.