How many states of matter exist?
Rather than enumerate them all, note that there are
#6#known non-classical states (e.g. liquid crystal) #8#known low temperature states (e.g. Bose-Einstein condensate a.k.a. BEC) #3#known high energy states (e.g. Degenerate matter (white dwarf and neutron star material))
Then there are
- String-net liquid
- Dark matter
- Equilibrium gel
See https://en.wikipedia.org/wiki/State_of_matter for more details.