This state of matter is well known now , it is called "bose-einstein condensate".
Mr cohen tanoudji got the nobel prize for develloping it.
It has numerous applications right now such as :

-Atomic laser (still in research time)

-Ultra precise time measurement.

-ultracold chemistry

- Several quantum observations on a giant scale .

and many others

surely "plasma" is a state of matter too -
in fact about 99% of matter in the universe looks like its in plasma state!

Could it be a supercritical fluid?

Do all elements go through this state?

In a physics book from Gerthsen and Meschede: "Physik" (Springer), there are listed about 9 states of matter. I can't remember what it was exactly, but it ended with "neutron stars" and "black holes"...?

But there was nothing "colder" than solid, liquid or ordinary gaseous state of matter. the pressure and density of black holes is given as 10²⁷ bar and 10¹⁷ kg/m³, respectively...(ouch).

oh come on, you don't believe in that whole "black holes" nonsense, do you...?

they do exist though, don't they...?

no

My astrophysics friend says they do!

They get paid hundreds of thousands of dollars in research grants to say that... :roll:

Seen much phlogisten in the labs recently...?