The video that is link leads to deals more with reality then identity and should have been posted a few weeks ago, I believe Eugene may have mentioned it while I was away for surgery. I love this stuff, it deals with the concept of dimensions no so much in a Sliders way, rather in a very complicated quantum physics and String Theory. Like I said, confusing and a whole lot of fun.
Here it is: http://www.tenthdimension.com/flash2.php
My brother Brady and I decided that it's best to think of the sixth dimension as three dimensional time. And it is interesting to think about multiple infinities.