Why This Stuff Costs $2700 Trillion Per Gram - Antimatter at CERN

Your laptop reminds me of my great grandfather's ax...  (The Golden Age of the 20th Century was when that witticism was new-ish, and you could still ambush people with it).
Anyhow, back on track with my train of thought, it seems clear why the universe does not contain macro- amounts of both matter and antimatter.  It can't.  One of the two HAD to dominate.  Locally, I suppose it would be possible for either to dominate, at least temporarily.  If some of the energy released in matter-antimatter annihilation ultimately reappears as matter (or anti-), then the incompatibility should continue to be thrashed out until one or the other is entirely depleted.  It seems unlikely that the ultimate winner should be decided randomly, because the two forms of matter aren't really chiral.  Some of the fundamental laws of the universe show "handedness"— electromagnetism — which must, in some as yet mysterious sequence account for the apparent chiral anomaly of matter-antimatter.  The cosmos may show a subtle preference for how reality sorts itself out, perhaps revealing subtle bias in some putative symmetries.