Does the Future Already Exist? Are the Distinctions Between the Past Present and Future Illusions as claimed by Einstein? Is it possible to travel into the future through the power of mind? Memory enables us to travel into the past, but mental time travel allows one to visit a future; a future which may already exist as predicted by Einstein's field equations: time may be a circle leading from the present to the future and then the past. Relativity also predicts that the only way to travel to the past is to first travel to the future, at which point one contracts to a size smaller than a Plank length and in so doing blowing a hole through the fabric of the space-time continuum and which may lead to a mirror universe if one dares to cross over the Einstein-Rosen bridge--and similar bridges are predicted to lead to other universes upon entering and surviving a journey through a black hole. Quantum mechanics also predicts time reversal in spaces smaller than a Plank length. Although the branch of quantum physics known as the “many worlds interpretation” rejects a central role for the collapse of the wave function by conscious observation and the act of measurements, the implications remain that there is no universal “now” and more than one past, present, or future, some more probable than others. The “many worlds” interpretation also resolves issues related to possible paradoxes of time travel, such as changing the past, which just becomes one past among many. As explained in this volume, Einstein’s relativity not only predicts that there is no universal “now” but that the future and the past and the experience of time are also relative to an observer.

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