Several years ago I sat in an optometrist's chair and was curious about what my vision was uncorrected.  So as I looked through this giant view-master he removed all the corrective lenses from my eye and said, "Can you read that?" "Read what?" I responded.  The doctor then put the lenses back in place and showed me the giant E that's at the top of the chart.  My eyes were horribly out of focus.  Thanks to the miracle of contact lenses I can see well enough to drive, read, write, and do everyday living.  Just don't ask me to shoot a basketball - it never turns out well. I've recently been reading "The Psychology of Flow" by Mihaly Csikszentmihalyi in which he describes the joy people experience when the reach a flow state.  Such a state is characterized by intense concentration, focusing all of one's energy on the task at hand so much so that external distractions are tuned out automatically.  The experience is similar whether it&