Quote Originally Posted by Link from P4B
The Yoga Sutras of Patanjali have been considered by some, such as physicist Fred Alan Wolf in his book, The Yoga of Time Travel to describe an inner process by which we can access knowledge of the past and future in the present. This form of time travel can be acquired by transcending the five Earthly anchors of the ego mind which otherwise leave us locked into the illusory self.
And not only they, but almost every information about astral projection says that is possible to astral project into the past (or the future), and so to know what was and what will be. Thats how the people who foresees the future do it.
Also the called "double", or "other", can be at different times than the "self".