there are just so many variables that go into human cognition. Belief. Drive. Focus. Grit. Exposure to ideas. Social support. Physical resources. Exercise. Health.

Each of these contribute, in some way, to every moment we spend learning. They are always changing. Each moment we learn affects the outcome of the next. It's Conway's game of life in n-dimensions.

My second question, and this is perhaps more important; what is the effect of a belief in innate talent? What don't you do or try because you believed it wouldn't work? Because you believed you couldn't? What do you beliefs cost you?

I realize my questions are pointed, and for that I apologize. They are, however, genuine.