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The Come in. Welcome. I'm E.G. Marshall, your host. And I'm going to throw you a curve. A. a curve in time. Have you ever heard of the

arrow of time? That's a concept which says that time can only move forward like an arrow. Another

theory claims that the arrow of time has two heads and can move either forward or backward.

A third theory says that time is eternal. In other words, the past, the present, and the future

have always and will always exist together. That appeals to me. It gives me a feeling of security.

But sometimes I wonder what would happen if technology started monkeying around with time and got the past and the future mixed up with each other.

215-847- 1291 to master control computer.

Queen, John, human?

Yes, calling computer from the 20th century.

You've sent me back to the wrong time.

...