Quote:
When Desmond visits Daniel at Oxford, just after the rat/maze, Daniel goes to the chalk board and erases some of his work. Before he does one can clearly see a reference to the Kerr Metric along with some equations.
A search of the Kerr Metric finds the following taken out of Wikipedia (although much information can be found through other sources). Other sources refer also to the Minkowski metric in relation to the Kerr metric
Kerr metric - Wikipedia, the free encyclopedia
Excerpts from the Wikipedia Article;
The Kerr metric is an exact solution of the Einstein field equations of general relativity;
The Kerr metric is often used to describe rotating black holes, which exhibit even more exotic phenomena. Such black holes have two event horizons where the metric appears to have a singularity.
Kerr black holes as wormholes
………………...Since the trajectory of observers and particles in general relativity are described by time-like curves, it is possible for observers in this region to return to their past.
Also
The diagram on the black board is the same as the one in his journal although the journal diagram seems to have additional/possibly updated information. - from lost-foum poster dharmakharma
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I found this, I thought it was interesting.