A direct link to the above video is at http://www.youtube.com/watch?v=1BscaUbwVR0
A direct link to the above video is at http://www.youtube.com/watch?v=SafwXdP7ylc
This is a great video from National Geographic showing serious scientific discussions of how we might some day be able to travel through time the same way that we travel through space now. The physicist featured prominently in this video is Dr. Sean Carroll, who I've talked about a number of times in this blog, in entries such as Wormholes, What Would a Flatlander Really See?, Time in Either Direction, Scrambled Eggs, and The Big Bang is an Illusion.
I've been a big fan of Dr. Carroll's work ever since I came across an article he wrote for Scientific American last year called The Cosmic Origins of Time's Arrow. There are two quotes I've pulled from that article before:
Our universe may be part of a much larger multiverse, which as a whole is time-symmetric. Time may run backward in other universes.and
The universe began empty and will end up empty--the appearance of stars and galaxies is a temporary deviation from its usual equilibrium condition.Persons familiar with Imagining the Tenth Dimension will instantly recognize how excited I am to see mainstream physicists finally starting to say the same things I've been saying with my project. Now, I see that Sean Carroll has a book coming out next month, called From Eternity to Here: the Quest for the Ultimate Theory of Time. Here's a link to a page at his blog telling us a bit more about the book:
And here's another link for you:
This page from edge.org features a 24 minute video of Sean Carroll discussing some of his ideas. The presentation is called "Why Does the Universe Look the Way it Does?". There is a full text transcription of the presentation there as well, very useful for future reference back to these ideas.
From Eternity to Here goes on sale January 10, 2010, I can't wait to read it. You can pre-order it right now from Amazon.com if you're feeling impatient!
Enjoy the journey,
Next: Life is But a Dream