What are the extra 2states?

The term "extra two states" typically refers to the states of matter beyond the traditional solid, liquid, and gas. These additional states include plasma, which consists of ionized gas with free-moving charged particles, and Bose-Einstein condensate, a state formed at temperatures close to absolute zero where particles occupy the same quantum state. Other states, like fermionic condensates and quark-gluon plasma, have also been identified in specific conditions.