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Time Travel is impossible
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<blockquote data-quote="fanavans" data-source="post: 28901" data-attributes="member: 605"><p><strong>Time Travel is impossible</strong></p><p></p><p>I know I haven?t been on the board very long?. Oh Well, here goes nothing? NB I have described it as a conjecture for now <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite38" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p> </p><p></p><p> </p><p></p><p> <strong>The Fanavan?s Conjecture</strong></p><p></p><p> A person cannot travel back in time with his/her corporeal body into the same universe if they have experienced the history of that universe.</p><p> </p><p></p><p> <strong>Theory</strong></p><p></p><p> <em>Definitions</em></p><p></p><p> T<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite60" alt="(n)" title="Thumbs down (n)" loading="lazy" data-shortname="(n)" /> is a point in time.</p><p></p><p> x,y,z are arbitary points in space. More dimensions of space can be added without change to the theory. Note that they are variables.</p><p></p><p> <em>Working out</em></p><p></p><p> W, proposed time traveller, exists today at T(0),x,y,z. </p><p></p><p> If W travels back in time, his physical/corporeal body exists at T(-1),x,y,z.</p><p></p><p> No two bodies (fermions) can occupy the same point in spacetime (cf, <a href="http://en.wikipedia.org/wiki/Pauli_exclusion_principle" target="_blank">http://en.wikipedia.org/wiki/Pauli_exclusion_principle</a> , <a href="http://wings.avkids.com/Curriculums/Air/tissue_in_glass.html" target="_blank">http://wings.avkids.com/Curriculums/Air/ti...e_in_glass.html</a> )</p><p></p><p> If we allow W to travel to T(-1) it can be said* at T(0) that W occupies T(-1),x,y,z</p><p></p><p> Thus if W leaves T(0) W cannot arrive at T(-1),x,y,z because he is already there.</p><p></p><p> Nor can W arrive at T(-1),A,B,C because at T(0) W would already occupy that spacetime.</p><p></p><p> Nor can W arrive at T(-2),x,y,z because at T(0) W would already occupy that spacetime.</p><p></p><p>Therefore W cannot arrive at T(-t),x,y,z. </p><p></p><p>Therefore W cannot travel back in time with his corporeal body in his same universe.</p><p></p><p> <strong>Example</strong></p><p></p><p> A Girl travels back one hundred years in her own universe in a time machine she has built. Once in the past, she does some stuff and then dies a natural death. She is born 60 years later, grows up and builds a time machine. She enters her time machine and travel?s back one hundred years. But when she gets there, she is already there. So she finds she cannot stop or materialise or whatever ? in short she can?t ?be there? because she is already there. Since she can?t be there, she can?t go there therefore time travel is impossible.</p><p></p><p> <strong>Problems(or things that need to be flushed out)</strong></p><p></p><p> 1. I marked a paragraph above with an * where I said that W could be said to occupy a particular position in spacetime. It is impossible to say any object occupies a specific point in spacetime as a result of the Uncertainty Principal. However, I do not believe that this is relevant when we are talking about bodies the size of a human. (Suggestions?)</p><p></p><p> 2. You might well argue that at the point immediately proceeding W?s arrival he is not occupying that point in spacetime. You would be right. But travelling back in time is not the same as walking to the other side of the room. You are not on the other side of the room, and when you get there, time would have passed. W is in the time he travelled to, therefore he is occupying that point is spacetime, and cannot go there.</p><p>-----</p><p></p><p></p><p> Please post your feedback. </p><p></p><p> I await fame or infamy?</p><p></p><p> Fanavans.</p></blockquote><p></p>
[QUOTE="fanavans, post: 28901, member: 605"] [b]Time Travel is impossible[/b] I know I haven?t been on the board very long?. Oh Well, here goes nothing? NB I have described it as a conjecture for now :-) [b]The Fanavan?s Conjecture[/b] A person cannot travel back in time with his/her corporeal body into the same universe if they have experienced the history of that universe. [b]Theory[/b] [i]Definitions[/i] T(n) is a point in time. x,y,z are arbitary points in space. More dimensions of space can be added without change to the theory. Note that they are variables. [i]Working out[/i] W, proposed time traveller, exists today at T(0),x,y,z. If W travels back in time, his physical/corporeal body exists at T(-1),x,y,z. No two bodies (fermions) can occupy the same point in spacetime (cf, [url=http://en.wikipedia.org/wiki/Pauli_exclusion_principle]http://en.wikipedia.org/wiki/Pauli_exclusion_principle[/url] , [url=http://wings.avkids.com/Curriculums/Air/tissue_in_glass.html]http://wings.avkids.com/Curriculums/Air/ti...e_in_glass.html[/url] ) If we allow W to travel to T(-1) it can be said* at T(0) that W occupies T(-1),x,y,z Thus if W leaves T(0) W cannot arrive at T(-1),x,y,z because he is already there. Nor can W arrive at T(-1),A,B,C because at T(0) W would already occupy that spacetime. Nor can W arrive at T(-2),x,y,z because at T(0) W would already occupy that spacetime. Therefore W cannot arrive at T(-t),x,y,z. Therefore W cannot travel back in time with his corporeal body in his same universe. [b]Example[/b] A Girl travels back one hundred years in her own universe in a time machine she has built. Once in the past, she does some stuff and then dies a natural death. She is born 60 years later, grows up and builds a time machine. She enters her time machine and travel?s back one hundred years. But when she gets there, she is already there. So she finds she cannot stop or materialise or whatever ? in short she can?t ?be there? because she is already there. Since she can?t be there, she can?t go there therefore time travel is impossible. [b]Problems(or things that need to be flushed out)[/b] 1. I marked a paragraph above with an * where I said that W could be said to occupy a particular position in spacetime. It is impossible to say any object occupies a specific point in spacetime as a result of the Uncertainty Principal. However, I do not believe that this is relevant when we are talking about bodies the size of a human. (Suggestions?) 2. You might well argue that at the point immediately proceeding W?s arrival he is not occupying that point in spacetime. You would be right. But travelling back in time is not the same as walking to the other side of the room. You are not on the other side of the room, and when you get there, time would have passed. W is in the time he travelled to, therefore he is occupying that point is spacetime, and cannot go there. ----- Please post your feedback. I await fame or infamy? Fanavans. [/QUOTE]
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