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can i travel back in time and change my decision?
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<blockquote data-quote="JackStagger" data-source="post: 183618" data-attributes="member: 11397"><p>Also, keep in mind that you would have only two ways of even travelling back at all. In the first case, you would have to pass through —or eventually arrive from— a time portal which had already existed prior to or during whatever event you desired to change. If you built a time machine, it would only be able to modulate time backward to the point at which you had turned it on. There's nothing that says you couldn't make successive jumps through two or more portals that exist contemporaneously, without the need for a single constant machine and enabling redundancy. However, you would still encounter the limit of not being able to travel to a point before the final time portal in the sequence of travelling backwards had been turned on. Large gaps in quantum mechanic's current theories regarding causality do arguably go either way, but based on the mathematics of Einstein this would be the case.</p><p></p><p>The second way would be to go incomprehensibly fast. So fast you arrive at a point in space-time before you departed, again and again until you arrive back in time. This is theoretically "easy" to do <em>if</em> you can modulate your time as you move, but if you can't then it's all but impossible obviously. This is also based on Einstein's GTR which I consider the prevailing theory in regards to time. There are still arguments to the contrary and non-supporting observations that I think have good merit, such is science.</p></blockquote><p></p>
[QUOTE="JackStagger, post: 183618, member: 11397"] Also, keep in mind that you would have only two ways of even travelling back at all. In the first case, you would have to pass through —or eventually arrive from— a time portal which had already existed prior to or during whatever event you desired to change. If you built a time machine, it would only be able to modulate time backward to the point at which you had turned it on. There's nothing that says you couldn't make successive jumps through two or more portals that exist contemporaneously, without the need for a single constant machine and enabling redundancy. However, you would still encounter the limit of not being able to travel to a point before the final time portal in the sequence of travelling backwards had been turned on. Large gaps in quantum mechanic's current theories regarding causality do arguably go either way, but based on the mathematics of Einstein this would be the case. The second way would be to go incomprehensibly fast. So fast you arrive at a point in space-time before you departed, again and again until you arrive back in time. This is theoretically "easy" to do [I]if[/I] you can modulate your time as you move, but if you can't then it's all but impossible obviously. This is also based on Einstein's GTR which I consider the prevailing theory in regards to time. There are still arguments to the contrary and non-supporting observations that I think have good merit, such is science. [/QUOTE]
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can i travel back in time and change my decision?
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