So, in a nutshell, what are the chances of there really being parallel universes and things existing in other?

Question

dimensions?

Answer 1

Nutshells are not part of any theory.

Answer 2

I would say about 84.8 % of it being true and Erwin your almost as geeky as I am :-)

Answer 3

I don't know. But it would be really cool if other Universes existed. Can you imagine?

Answer 4

There are a multitude of theories right now that allow for multiple universes to exist.

Just to list a few, brane theory, certain kinds of string theory, and certain interpretations of quantum mechanics.

You really can't put a percentage answer on this question, there really is not a way to know.

Addressing the "Dimensions?" yes there could be other dimensions if you follow string thoery, while the majority of theories stick with the standard 4, all a dimension is is a way to determine where an object is. 1 dimension for objects on a line for instance you only need to know up and down the line to be able to find an object, 2 dimensions you only need to know its x and y co-ordinates, 3 dimensions, x, y, z co-ordinates, and 4 dimensions x, y, z co-ordinates and a time to look for the object.

However, we can still imagine or draw higher dimensional shapes, for instance there is a famous geometric figure with 80 dimensions.