I like Bryson's approach to the game, it's different. It seems to keep his mind from wandering during those 6 hour PGA rounds ala Freddie Couples. For me maintaining concentration is a huge part of the game. I use a gps to get a number and keep score. That's all the info I need to swing confidently. With a general number in my head I pull a club and don't think about anything but executing the shot. It seems once the Bryson has all the info he feels he needs he swings with confidence. A plus is all the calculations he makes while waiting to hit keeps him focused.
I get a kick out of some of the old timers I play with. Although having just turned 60 myself I guess I need to rethink the term "oldtimer" . They have played the same course over and over again for 30-40 years. Of course they know where they are at any given spot on the course. They snark at my gps technology yet I'm walking, playing a half set of old set blades I built for fun, an old anser putter and they always have the latest and greatest driver, irons and high MOI putters their bag.