ctamblyn
Data Ghost
Symmetry means invariance under some particular transformation. Invariance means that the transformation causes no change.
Perfect symmetry, if it has any meaning at all, would have to mean invariance under all possible transformations.
Thus, if the universe were ever in a state of perfect symmetry, it could not possibly change in any way. If it were in that state prior to the Big Bang, then the Big Bang, and every subsequent change of configuration, could not have occurred.
Since many changes did occur and continue to occur, we must conclude that no state of perfect symmetry could possibly have existed.
It depends on what the set of all "possible" transformations actually includes in doronshadmi's view (I've tried finding out, but I'm having trouble making my question understood), and whether the symmetry can be spontaneously broken in some way. Doronshadmi's description of his model so far may not have been entirely rigorous.