The Open 2015: Dustin Johnson lights up Old Course and keeps Jordan Spieth in the shade

There is a perception in golf that Dustin Johnson is not the brightest button in the box. One rather dismissive columnist advanced the view that Johnson is so dense light bends around him. Nice line, yet at some point, his talent being what it is, you have to think Johnson will rise to his full height and proclaim: “I am the light.”