It's a totally interesting question. The thought has been around for years in religious circles of various stripes, but more recently as a part of particle physics. Here is one article. Oh - I suppose all this depends on the idea that I understand what you mean by "dimension" properly.

Thanks Brent. I believes you work for Harnu based on how your profile is edited :)

Indeed! But I also find the topic of dimensions of reality pretty interesting, even if I don't understand it that well. :-)

Oh Yes! Have you read "Flatland?" Kathy

I have little kids....trust me it is an entirely separate dimension from the rest of the world.

@Saltwater33 - SERIOUSLY. True that. I don't know if everyone has seen this, but for those parents with little kids who want some (definitely tongue-in-cheek) comic relief: