Reading - the Fifth Dimension?

Lately, Stephen Hawkings has been talking about some far-out ideas. He really boggles my mind. A week or so ago he was voicing his opinion on the subject of contacting extra-terrestrials. Today on http://www.msnbc.com/ he spoke on another subject. Here's a link http://www.msnbc.msn.com/id/37018725/ns/technology_and_science-science//to his article about the possibility of time travel. He goes into detail describing how it could be possible to travel into the future through locating and expanding wormholes and traveling just under the speed of light. His article is fascinating. I was wondering if a person could write a really great fiction book based on his suggestions (yep, all that scientific knowledge and I go thinking it should be reduced to a fiction novel!). When we read books that involve time travel (my favorites) or even books based in the past or future, aren't our minds already entering into a new dimension in a way? Not physically, but mentally? If reading stories can evoke true emotion in us, make us feel like we went to a far away place, make us laugh or feel deep sadness, how can we say our mind didn't take a day trip? Maybe that's why we are all so eager to read and escape through "wormholes" we create in the comfort of our own homes, to our own 5th dimension...............Okay, back to reality....