Sure-- where you're driving is usually more interesting than the highway that will take you there, but this isn't an off-the-cuff editorial-- it's presenting a

Sure-- where you're driving is usually more interesting than the highway that will take you there, but this isn't an off-the-cuff editorial-- it's presenting a quantitative analysis. Trying to study the qualitative impact without data like this means merely assuming the fundamental size and shape of the problem, which at best reduces it's utility. At worse it points you in the completely wrong direction.