And if I meet somebody on an airplane — this happened on the way over to Scotland — if I meet somebody on an airplane, and we ask each other, "" What do you do? What do you do? "" and I say "" I study memory, "" they usually want to tell me how they have trouble remembering names, or they've got a relative who's got Alzheimer's or some kind of memory problem, but I have to tell them I don't study when people forget.