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Closed Timelike Curve

causality
Image from Steve Bowers

A closed path through spacetime that is timelike. A CTC would correspond to a possible way of time travel or time communication. However no closed timelike curves have ever been observed to exist.

 
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Development Notes
Text by Anders Sandberg

Initially published on 24 September 2001.

See Also

Why is there no Time Travel in Orion's Arm?
 
 
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