I have a question I've long wanted to ask somebody and I see no place better than here to do it!
I am not a physicist in any way, Im just a big fan :)
So, I have an idea of parallel universes in my mind and like to explain it to myself in this way: (But I'd like to hear an opinion on it, to see if I'm even partially on the right track.)
Let's look at SuperMario for example: He is living a 2 dimensional life (and seems quite happy about it). He can go either left, right, up or down and that's it.
Now, if we say that the LCD screen is "SuperMario's universe" and we have an infinite number of extremely thin LCD screens stacked next to one another; No matter how close they are to each other though- two SuperMarios from different universes [screens] will never be able to see the other as they simply do not have the sense of a 3rd dimension, hence, being un-able to ever notice it.
So is this the same for us? Are we simply not built to notice a higher dimension- a 5th for example- when it could be right there in front of our noses?