In The Search for Maggie Ward on p. 231, Packy says, "...I'm going to try waterskiing..."
"Skiing on the water, what else, genius? Behind a boat. They started it on the Riviera before the war. It looks like fun."
"It will never catch on here," I said. Another one of my prize-winning predictions. I thought it was definitely confirmed later when I read an article in Life that pointed out that it would cost thirty-five dollars to buy the seven-inch-wide skis!