Something that occurs to me that I haven't seen any explicit discussion about and thought someone in the list may have come across it somewhere.
In cosmology we traditionally think of the universe as expanding from the point of view of any position within it. In our minds it is getting bigger and bigger. I am asking why I haven't ever seen anyone discuss the inverse proposition .ie. That what may be happeneing is that this expansion is only an appearance and that it may be that spacetime is actually contracting. If it were contracting then from within everything would appear to be expanding as we shrink and shrink to nothing. This is not a 'big crunch'. This is an inverse-bang. 2nd law/fwd time etc still functions as usual. Is there something built into the models that forbids this that I simply haven't got? Or is it meaningless to make the distinction? Cheers Colin Hales
