[For earlier posts in this series, click here, here, and here.]
Imagine yourself back in childhood, sitting in the back seat of the family station wagon, en route to one of those long, high-stress family vacations that Americans have honed to perfection. Mom and Dad are arguing over what went wrong so far on the trip, and of course, how they could have avoided these mishaps. Why didn't we ask for directions at the last gas station, instead of letting Dad navigate by dead reckoning? Should someone have called ahead to ensure that there wasn't a problem with the hotel reservations? Who was supposed to remember to pack the camera? Was it reasonable to expect a travel rate of 500 miles a day? Quickly, your vision of vacation as a straight line into the heart of fun evaporates. Replacing it is a circuitous flowchart, each serpentine twist representing a different set of decision points, estimates, and possible outcomes. Who knows what might happen next? The wheels will fall off on a desert highway, and someone will have forgotten to renew the AAA membership?