Looking for a specific unusual solution to Einstein's field equations

Galteeth
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Hi, I don't remember how this came up, but I stumbled across a "wrong" solution to Einstein's field equations that involved a spinning universe and being able to see one's future. Does anyone know what I am thinking of?
 
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The Godel metric it was. Thanks.
 
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Does the speed of light change in a gravitational field depending on whether the direction of travel is parallel to the field, or perpendicular to the field? And is it the same in both directions at each orientation? This question could be answered experimentally to some degree of accuracy. Experiment design: Place two identical clocks A and B on the circumference of a wheel at opposite ends of the diameter of length L. The wheel is positioned upright, i.e., perpendicular to the ground...
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