When you have a quiet moment, seek egolessness and remember that the human body and nervous system are merely the organic user interfaces that interpret holonomic materiality for a unique transcendent entity that emerges reciprocally within the pre-existing vital energy of uncreated absolute pure being. Egoless pure consciousness, unconditioned pure energy, is the pre-existing underlying ontological ground of uncreated absolute pure being that contains and sustains all existence including itself. Logical premises and mathematical vectors can be manipulated without regard to reality.
Causes precede their effects absolutely in all frames of reference in time as well as space.
Just so, time travel to a historical past and reversing the arrow of time are nothing more than mathematical or logical manipulation of vectors or premises with no basis in fact. Residing only in memory, the past is gone forever and each of us in his or her own way is busily creating the future in the omnipresent transcendent and material now. As the 20th century ends, the material realm is acknowledged as the purview of scientific inquiry while the transcendent realm has been described primarily by myth and religion. Perhaps 21st century science will investigate the transcendent as well as the material. In the Holographic Paradigm, transcendent higher order conscious information devolves and lower order matter evolves.