  We start with a discussion of a phase diagram and three special collision
energies: (i) the first touching of the mixed phase; (ii) the softest point;
(iii) the critical point. We then proceed to more details about the role a
massless critical mode should play in the particle interaction and the elliptic
flow. We then enter a discussion of whether high density QGP is or is not
strongly coupled, and if so what one can say about color superconductivity
domain using universality and data on trapped ultracold fermionic atoms. At the
end, we briefly discuss deconfinement, or more specifically on whether there
are precursors of the QCD strings at $T>T_c$, as well as possible role of
magnetically charged excitations (monopoles and dyons).
