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Infinite Cylinder

These are the steps to time travel:

• Take something that has a mass 10 times that of the sun

• Roll it into an incredibly dense and infinitely long cylinder

• Spin it a few billion rotations per second

• Fly a spaceship in a very precise spiral around it

• And you have time traveled!

This method is called the infinite cylinder, or the Tipler Cylinder. Frank Tipler discovered it in 1974.

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