[neutralino]

Originally Posted by Profpat Hi everyone; I read that in order to explain the big brain some scientist came up with 2 parallel universes colliding or touching to avoid the old "something from nothing" problem.

I don't suppose you remember where you read this, do you? Sounds interesting

I don't disagree with you Neutralino about definition, But I think this whole topic is so speculative that I hope you don't mind if I and perhaps others have some fun with just free brain storming and speculation. Not very scientific I know.

No, I don't mind at all: I'm not that boring am I, Pat? I agree it's a very speculative subject. Perhaps I shouldn't have said the word "definition" but rather "what people think." That is, I would be interested to know what people think when they say a "parallel" universe. To me, saying a universe is parallel is automatically invoking at least one extra dimension in which the universes can be parallel. So, in my opinion, anyone who believes in many universes must also believe in many dimensions.

Just my thoughts, anyway (and not factually correct like I aim for my other posts to be!)