by Ellen Coogan
Fanciful ideas of time travel to the past were dispelled by modern philosopher Ned Markosiah at Tuesday night’s (October 29) “Philosophy Today” lecture at the University of Alabama.
“So my argument is that time travel to the past is not possible if a certain theory of time is true. Namely, the dynamic theory of time, which I do think is true,” Markosian, a philosophy professor at Western Washington University, said. “So, I do think time travel to the past is not possible. As for time travel to the future, that could still be possible.”
The talk compared two competing schools of thought about time: static time and dynamic time.
According to static time, all times are equally real. So what happened a few days ago still exists in the same way as what is happening right now.
According to dynamic time, time is like a moving spotlight that shines on certain moments, and only the moments that are under the light exist. The spotlight keeps moving and cannot be stopped, just as time cannot be stopped.
Markosian said time travel to the past is impossible according to dynamic time theory for several reasons.
More - Link >>> http://cw.ua.edu/2013/10/30/visiting-philosopher-declares-time-travel-to-past-impossible/
Source: The Crimson White of the University of Alabama.
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Awesome post. It´s only possible to travel to the future, because we the "arrow" of time points onwards.ReplyDelete
If Einstein's relativity is correct, and there are no known reasons to think otherwise, travel to the future is easy - just travel far enough at very close to light speed. In my latest SF novel, I give two arguments why travel to the past is impossible, the most important being the second law of thermodynamics, which requires entropy to increase with time. If any object travelled back, it would transfer entropy from the present to the past, in direct contravention of the law. Nevertheless, I suggest an alternative - that as long as all energy is expended in the present you might be able to transfer information to the past because it contains no mass nor heat, nor energy. This, of course, still allows paradoxes - you cannot kill your grandfather, but maybe you can send a message that leads to someone else at the time to do it. That would only work if time was multidimensional, and a number of parallel timelines were possible. An example I used in the novel to prop up this hypothesis: how did the Delphic Oracle know Galba would replace Nero?ReplyDelete
Good point Mr. Miller. I read your comment on this topic. Yes I am totally agreed with you because you have much learn through your future. I like your thought. Thanks for nice sharing.Delete
Thanks for sharing this nice info expect some more in near future.ReplyDelete
I agreed that time travel to the past is not possible but travel to feature is possible. Because time never stops and wait for anyone. It passes continuously.ReplyDelete
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