Time Travel Makes for Good Fiction, But is it Real?

[lolTorrent]

http://www.msnbc.msn.com/id/17544598...15829?GT1=9145

I opened the internet, and BAM!. This article was the first on the page. So I quickly clicked (heh, that ryhmed). It's pretty interesting, IMO. So I decided to share.

Also, this sparked even more interest.

To punch a hole into the fabric of space-time, Kaku explained, would require the energy of a star or negative energy, an exotic entity with an energy of less than nothing.

Discuss.