A little more reading material: http://www.daviddarling.info/encyclopedia/G/Godel_universe.html http://www.daviddarling.info/encyclopedia/G/Godel_universe.h...

A little more reading material: http://www.daviddarling.info/encyclopedia/G/Godel_universe.html http://www.daviddarling.info/encyclopedia/G/Godel_universe.h..., and: http://en.wikipedia.org/wiki/Gödel_metric http://en.wikipedia.org/wiki/Gödel_metric