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.
Want to receive SpaceWatchtower blog posts in your inbox ?
Send request to < email@example.com >..
Glenn A. Walsh, Project Director,
Friends of the Zeiss < http://buhlplanetarium.tripod.com/fotz/ >
Electronic Mail - < firstname.lastname@example.org >
About the SpaceWatchtower Editor/Author: < http://buhlplanetarium.tripod.com/#GAW >
SpaceWatchtower Blog: < http://spacewatchtower.blogspot.com/ >
Also see: South Hills Backyard Astronomers Blog: < http://shbastronomers.blogspot.com/ >
SPACE & SCIENCE NEWS, ASTRONOMICAL CALENDAR:
Twitter: < https://twitter.com/spacewatchtower >
Facebook: < http://www.facebook.com/pages/
Author of History Web Sites on the Internet --
* Buhl Planetarium, Pittsburgh:
< http://www.planetarium.cc >
* Adler Planetarium, Chicago:
* Astronomer, Educator, Optician John A. Brashear:
< http://johnbrashear.tripod.com >
* Andrew Carnegie & Carnegie Libraries:
* Civil War Museum of Andrew Carnegie Free Library:
< http://garespypost.tripod.com >
* cable-car railway, Pittsburgh:
* Public Transit: