The standard model treats matter and anti-matter as equivalent opposites, so while in our universe atoms have negative electrons there could be an anti-universe with positive electrons. In that world, everything would seem the same to its inhabitants because the laws of physics would be exactly the same. The problem then is, why do we only see matter all around us? Did the big bang produce:
1. No anti-matter, for some unknown reason?
2. Matter and antimatter equally but the antimatter in the universe is hidden?
3. Matter and antimatter equally but matter somehow “overcame” antimatter?
Physics dismisses the first option by the standard model and the second because no anti-meteors, anti-planets or anti-stars have been seen. The current view is that the big bang made equal amounts of matter and anti-matter, as per the standard model, then “somehow” matter overcame anti-matter. That no evidence supports this belief is called a “mystery” of physics:
“The lack of anti-matter is a deep mystery that cannot be explained using the Standard Model.” (Oerter, 2006) p101
The standard model requires the first event to make equal amounts of matter and anti-matter because it treats them as equivalent but in quantum realism, our universe began with a single photon that had to choose whether to vibrate first-up or first-down on the surface of space. When our first photon chose processing over anti-processing, our universe became matter not anti-matter. The first light then evolved into matter only, not matter and anti-matter equally as the standard model says. It follows that the anti-matter the standard model is trying to explain away never was. The first photon chose to oscillate one way and from then on anti-matter was a path not taken. Physical realism can’t explain why our universe is matter not anti-matter because that choice occurred before the physical universe began.