Just as I suspected, you're a moron.

There are three dimensions in our world of perception. Although some physicists count time as its own dimension, and think it is a part of the fabric of what we call Spacetime. As in the Spacetime continuum. So if you are an advocate of that hypothesis, there are four dimensions that we can perceive.

But eleven? Pure conjecture. Not even a hypothesis. Let alone a full fledged theory. The eleven dimension deal is usually apart of speculation by physicists and cosmologists who believe in String Theory. That is, that those tiny little subatomic particles are actually vibrating strings. And each different frequency of these strings produces a different type of matter.

Then they go on about M Branes. Or, Branes for short. These are invisible to us with our limited perceptions, but they comprises different layers, or dimensions of the universe. And they postulate eleven by thinking of the three we know, and trip!In it an in an additional spatial arrangement of height, width, and depth.

So...That's nine. Then they add a mirror image version, like matter and anti matter to arrive at the aforementioned eleven.

But again, pure speculation. Zero proof. It's all done by equations scribbled on dry erase boards by theoretical physicists. And it doesn't answer any more questions than it poses, in my opinion. I consider it a part of what I call Pop Science. And I'm not a fan.

Thanks.

Look at an erase board. Okay. You can see it goes up and down and left and right. That's 2 dimensions! How can you not understand this basic level of human knowledge?