The expansion of the universe

Whatever it was, it was probably an infinite, eternal and balanced context.

If this context is the same as the dark matter (energy is another state of the matter), for some reason a big bang had occurred in the same context and thus that balance got disturbed by antimatter jumping out of part of that context and begining to expand.

What was remaining was a mix of dark- and ordinary matter, while as the antimatter were thrown to the outer boundary of the ordinary matter and expanding outward, thus more matter was left behind (obviously the ordinary matter is also expanding which means the velocity of separated antimatter is more than that of the ordinary matter).

This expansion also means that antimatter is still separating at the outer boundary of the ordinary matter from the dark matter and is throwing out among the old antimatter. Just like the forward movement of a sea wave and the foam in front of it, ofcourse with a exeption that there is no shore in front of the foam of antimatter.

Furthermore, if this expansion ends at some point and starts to contract, the beginning of the end of the existence of the ordinary matter and -energy is reached and thus the final balance will occur.