My reply was absolutely positively serious, as I have spent years upon years analyzing traffic flow whilst travelling to and from work.
I have mentally stored information in analyzing traffic flow. From car type, to full description of the drivers physical appearance, to what the driver is doing, to brand of tire, etc. All this information is vital in the study of traffic. You must know your highway, and all its ebbs and flows. The intricucies in travelling 70+ MPH, all the while attempting to safely go from point A to point B in a decent time.
And while performing this detailed study, I try very hard not to turn into an aggressive driver, and run over all the pricks sprinkled throughout the highway system I travel every day.