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Review of Palle Yourgrau's "Gödel Meets Einstein: Time Travel in the Gödel Universe."
Gö del Universe Time Travel
2008/4/22
This is a review of Yourgrau's book, the second edition of his "The Disappearance of Time."
Contrary to the informed consensus, time travel implies spontaneity (as distinct from chance) so that time travel can only be of the second kind.
This paper is a survey of the theories of time travel in a perspective close to theories of time. In the last section we discuss the special ontology of the objects that exist on closed timelike curve...
“Time Travel” in Godel Spacetime: Why It Doesn’t Pay to Work Out All the Kinks
Time Travel Godel Spacetime
2008/4/9
Here we provide a proof that there exist closed timelike curves in Gödel spacetime with total acceleration less than 2π(9 + 6√3)^1/2. This answers a question posed by David Malament.