“When you skip rocks, sometimes they fly out straight and skip almost continuously, really close together on the water’s surface, bang, bang, bang, like that. But sometimes you get ones that skip only once and then go really far in the air before plunking down. The two rocks have traveled the same distance. The end result is the same. Sometimes you get a rock that won’t skip at all, just kerploosh, right there at your feet. See what I mean?”
