Assumption that all matter in the universe consists of particles.
[[../_inbox/inbox-2021/inbox-2021-03/dark matter]] dominates and "our" "ordinary" [[../_inbox/inbox-2021/inbox-2021-03/baryonic matter]] is not the most common type by far. related:: [[baryon]]
This would be the final Copernican twist in our status in the material universe. Not only are we not at the center of the universe: we are not even made of the predominant form of matter – John D. Barrow