11 Dimensions???

I don't get it ... i know time is the 4th dimension ... but, whats up with the other 7.

People in this thread are getting confused about what "reality" and physical theories really mean. Physics is the process of ascertaining which mathematical models best describe, and give best predictions of, physical observations. There is not this sense of something being more "real" because you have greater intuition about it... that's just a load of bollocks.
So far string theory has yet to provide any predictions whatsoever: until that time, it is not science. But just because the mathematics for it invokes however many dimensions, well... who gives a fuck? If having 23 dimensions best describes what we observe, then so be it, regardless of what we FEEL should be the case.