There's someting that I'd like to know and haven't been able to find in any book: 1.- Is the number of second order phase transition university classes known? 2.- Do we know quantitatively know the behavior of all such second order phase transition university classes? 3.- Do we know the university class the electroweak phase transition belongs to? I'm assuming, perhaps incorrectly, that this Universe phase transition was second order. Any insight regarding any of these three questions will be much appreciated. Thanks in advance, Carlos.