I enjoyed reading this blog, and I would actually like to raise a small comment (if I may) which does not change anything relative to what you wrote.
There is in fact more than three states of matter, although the extra ones are not typical ones. The fourth state of matter is plasma, and we must then add to the list a bunch of more exotic states like supercritical fluid, degenerate matter, etc. A quite complete list can be found here.
Cheers!