That was approximately what Stephen had said, so I supposed that he was. “Right as rarebits,” I said.

Switch is right. It was about time travel. What we call travel through time. So I took the tube numbers he gave me and I put them into the circuit-builder; I set it for ‘series’ and there it is-my time-traveling machine. It travels things through time real good.

Esperanto isn’t anywhere. It’s an artificial language. I played around with it a little once. It was supposed to end war and all sorts of things. Some people called it the language of the future.

A two-year forecast on the market was worth a billion!

Instead of a decent differential analyzer machine they had a human sea of office girls with Burroughs’ desk calculators; the girls screamed “Banzai!” and charged on differential equations and swamped them by sheer volume; they clicked them to death with their little adding machines. Royland thought hungrily of Conant’s huge, beautiful analog differentiator up at M.I.T.; it was probably tied up by whatever the mysterious “Radiation Laboratory” there was doing. Royland suspected that the “Radiation Laboratory” had as much to do with radiation as his own “Manhattan Engineer District” had to do with Manhattan engineering. And the world was supposed to be trembling on the edge these days of a New Dispensation of Computing that would obsolete even the M.I.T. machine—tubes, relays, and binary arithmetic at blinding speed instead of the suavely turning cams and the smoothly extruding rods and the elegant scribed curves of Conant’s masterpiece. He decided that he would like it even less than he liked the little office girls clacking away, pushing lank hair from their dewed brows with undistracted hands.