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walking. Sometimes it’s almost ludicrous. The other day I was waiting to bring home one of my children from a piano lesson when a car stopped outside a post office, and a man about my age popped out and dashed inside. He was in the post office for about three or four minutes, and then came out, got in the car and drove exactly 16 feet (I had nothing better to do, so I paced it off) to the general store6 next door.9 And the thing is, this man looked really fit. I’m sure he jogs extravagant distances and plays squash and does all kinds of healthful things, but I am just as sure that he drives to each of these undertakings.10 An acquaintance of ours was plaining the other day about the difficulty of finding a place to park outside the local gymnasium. She goes there several times a week to walk on a treadmill. The gymnasium is, at most, a sixminute walk from her front door.11 I asked her why she didn’t walk to the gym and do six minutes less on the treadmill.12 She looked at me as if I were tragically simpleminded and said, “But I have a program for the treadmill. It records my distance and speed and calorie burn rate, and I can adjust it for degree of difficulty.”13 I confess it had not occurred to me how thoughtlessly deficient nature is in this regard.14 According to a concerned and faintly horrified 1997 editorial in the Boston Globe, t