Reality does exist. In the real world anti-matter or the lack of it, is one of the great puzzles for ‘The Science’. Pace the Big Bang and Relativity, the universe should be suffused in anti-matter. It isn’t. Most of what we see is simply matter. But given the supposed cosmic egg ‘explosion’ (billions, trillions, brazilians of years ago etc), this can’t be right. We must have anti-matter just based on the laws of probability alone.

Paul Dirac had predicted the discovery of the positron, or anti-matter, in 1928. Dirac’s famous equation predicted that the entire universe was composed of electron-positron pairs, or as they are now termed ‘electropons’. Positrons would fill a gap in the scientific understanding of how matter and anti-matter are created.  More here