If, somehow, you get trapped in a circular time system  . . .  how long is the circumference of an infinitely retraced circle?...

The patient sat stiffly in the leather chair on the other side of the desk. Nervously he pressed a coin into the palm of one hand. "Just start anywhere," I said, "and tell me all about it." "As before?" Without waiting for an answer, he continued, the coin clutched tightly in one hand. "I'm Charles J. Fisher, professor of Philosophy at Reiser College." He looked at me quickly. "Or at least I was until recently." For a second his face was boyish. "Professor of Philosophy, that is." I smiled and f