Posted: Apr 07, 2018 4:51 pm
by newolder
Probably the subject of another topic (this one's about Bohmian Mechanics) but there's a Perimeter Institute video:
IS THE EMERGENCE OF MACROSCOPIC BEHAVIOR DUE TO A QUANTUM MECHANICAL INDETERMINACY OF THE STRUCTURE OF THE EINSTEINIAN SPACE-TIME?
ABSTRACT

According to a widely accepted view, the emergence of macroscopic behavior is related to the loss of quantum mechanical coherence. Opinions on the possible cause of this loss diverge. In the present talk it will be shown how a small, assessable amount of indeterminacy in the structure of space-time may lead to the emergence of macroscopic behavior, in agreement with empirical evidence.


Also, there are no useful classical models for the macroscopic behaviour of superconductors and superfluids - just saying.