November 14

Tom is worried about how the machine works. ``When you return from the future or the past, are you sure you will remember it?' he asks. ``What does it mean `return to the present?' Doesn't it mean returning to your former state, and your former state has no memory of time travel. If you don't remember your trip, you may wind up going back and forth between November 14 and November 15 forever, each time thinking that it is the first trip!'' Jim is really impressed with this reasoning. He devises a scheme to test whether or not it is true and plans to try it out tomorrow.

Click here.