Of course, Jimmy bawls and won’t go another step, and your partner gives you that disdainful, I-should-have-married-the-quarterback look because you haven’t gone 400 yards. But, hey, it hurts. Hurts a lot. Believe me, I understand. OK, now imagine two little Jimmies in a pack on your pack, or, better still, something inert but weighty, something that doesn’t want to be lifted, that makes it abundantly clear to you as soon as you pick it up that what it wants is to sit heavily on the ground—say, a bag of cement or a box of medical textbooks—in any case, forty pounds of profound heaviness.
...more
