For Lynn Nesbit
When a scientist views things, he’s not considering the incredible at all.
–LOUIS I. KAHN
You can’t fool nature.
–RICHARD FEYNMAN
During the preparation of this manuscript, I received help and encouragement from Caroline Conley, Kurt Villadsen, Lisa Plonsker, Valery Pine, Anne-Marie Martin, John Deubert, Lynn Nesbit, and Bob Gottlieb. I am grateful to them all.