In 2036, string theory still dominates physics due to its continued "effect" of encompassing other physical properties from unrelated fields. A great deal of the theoretical mathematics behind time travel was discovered by testing various ideas in string theory and eliminating the anomalies. As I recall, it was this original work that led to the final proof that six dimensions do indeed curl up to give us our observable universe. This in turn supported more of the theoretical math behind time travel.
six dimensions do indeed curl up to give us our observable universe -> interesting