"Even in this age of yours they have not discovered that secret?" Harbauer exulted. "You travel the Universe, I gather, and yet your scientists have not yet learned to move in time? Listen! Let me explain to you how simple the theory is.
take it you are an intelligent man; your uniform and its insignia would seem to indicate a degree of rank. Am I correct?"
"I am John Hanson, Commander of the Ertak, of the Special Patrol Service," I informed him.
"Then you will be capable of grasping, in part at least, what I have to tell you. It is really not so complex. Time is a river, flowing steadily, powerful, at a fixed rate of speed. It sweeps the whole Universe along on its bosom at that same speed. That is my conception of it; is it clear to you?"
"I should think," I replied, "that the Universe is more like a great rock in the middle of your stream of time, that stands motionless while the minutes, the hours, and the days roll by."
"No! The Universe travels on the breast of the current of time. It leaves yesterday behind, and sweeps on towards to-morrow. It has always been so until I challenged this so-called immutable law. I said to myself, why should a man be a helpless stick upon the stream of time? Why need he be borne on this slow current at the same speed? Why cannot he do as a man in a boat, paddle backwards or forwards; back to a point already passed; ahead, faster than the current, to a point that, drifting, he would not reach so soon? In other words, why can he not slip back through time to yesterday; or ahead to to-morrow? And if to to-morrow, why not to next year, next century?
