The disorientation of meeting one's sagging contemporaries, memories of a younger face crashing into the reality of jowls, under-eye pouches, unexpected lines, and then the terrible realization that one probably looks just as old as they do. Do you remember when we were young and gorgeous? Clark wanted to ask. Do you remember when everything seemed limitless? Do you remember when it seemed impossible that you'd get famous and I'd get a PhD? But instead of saying any of this he wished his friend a happy birthday.