Hello, first of sorry for asking what maybe a stupid question. I am teaching myself physics by watching lessons about QM, Classical Mechanics, EMT etc. I was watching Susskind's lectures about statistical mechanics lately and he derived equation of energy E= 3/2 x k x T. 3 in 3/2 came from number of spatial dimensions. Could it be possible that our universe began as having higher amount of dimensions ? I am sure they already thought about this. What is the reason they do not use this equation for explaining the energy universe had at the beginning and possibly for this scenario: If our universe is embedded in some sort of medium which only consist of dimensions it can be possible to explain multiverse scenarios since number of dimensions determine the energy of a system and there can be other singularities like our universe. I am sorry if this sounds naive I just wanted to see why a relation between dimension and energy cannot be established.