I read through quite a few comments on this one, and I thought about replying to just one. That wouldn't have been fair.First let me say, I'd be willing to wager that some people can talk on the cell phone at the same time as they drive more safely than they can drive without while others cannot.
Let's take a look at something most of you seem to know more about than science, sports (pun intended). Athletes practice many hours a day. The purpose of practicing isn't really to get to a point where one can constantly make conscious decisions to win whatever game they are playing. The purpose of practice is to build strength, and train the brain to make unconscious decisions the way they need to be made to reduce reaction time. Call it muscle memory or whatever you want. Some people learn to react unconsciously on the road.
With that said, this is only a theory. However, seeing that so many of you feel the need to refute an actual study if anecdotal evidence, I'll tell you this: Don't bother trying to convince me otherwise unless you're willing to get off your lazy ass and perform an actual scientific study that proves me wrong.