How many credible dimensions are there? Incredible?

Question:

How many credible dimensions are there? Incredible?

I've been watching, with interest, movies such as Lake House, Deja Vu. Does anyone feel, or possibly have proof of a dimension we live in which we cannot see? Hard for me to explain, but, kind of like humans breathing water instead of air, yet fish are all around, but cannot see us, or be seen by us.

Additional Details

4 days ago
Let me try to make my question more clear: can ANYONE tell me or show proof of a coorelation between the elements of time and matter. Can time be reversed to change the form of matter? Can matter be reversed to change the form of time?

Best Answer - Chosen by Asker: 4 days ago
Let me try to make my question more clear: can ANYONE tell me or show proof of a coorelation between the elements of time and matter. Can time be reversed to change the form of matter? Can matter be reversed to change the form of time?