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consciousness simply moves into the new space-time location that is waiting for us. A person standing in his or her own frame of reference, in another building across the street and outside of our block universe, would have no trouble seeing our path into the future, which is what Einstein called our world line.
Precognitive dreams are probably the most common psychic event to appear in the life of the average person. These dreams give us a glimpse of events that we will experience the next day or in the near future. In fact, we believe that the precognitive dream is caused by the experience that we actually will have at a later time. If you dream about an elephant passing in front of your window, and wake up the next morning and find a circus parade led by an elephant going down your street, we would say that last night's dream was caused by your experience of seeing the elephant the next morning. This is an example of the future affecting the past. There is an enormous body of evidence for this kind of occurrence. What cannot happen, we believe, is a future event changing the already observed past.
Logical consistency requires us to believe that nothing in the future can cause something that has already happened, to have not happened. This is the so-called intervention paradox, illustrated by the example in which you kill your grandmother when she was a child, and you therefore cease to exist. That kind of thing is interesting to think about, but there is no evidence to make us take it seriously at this time. The Persian poet-astronomer Omar Khayyam described the immutability of past events beautifully in his timeless epic, The Rubaiyat:
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The moving Finger writes; and, having writ,
Moves on: nor all your Piety nor Wit,
Shall lure it back to cancel half a Line,
Nor all your Tears wash out a Word of it.
To know that a dream is precognitive, you have to recognize that it is not caused by the previous day's mental residue, your wishes, or anxieties. We find, rather, that precognitive dreams have an unusual clarity, and often contain bizarre and unfamiliar material. Dream experts like to speak of

 
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