It is a remarkable movie. Like Nolan’s Interstellar it is thought-provoking and has many deft touches that can make debate swing in different ways. I will see it again and pick up more nuances.
I don’t pretend to remotely understand “inversion” and I think if I read a physics paper I would still not get it. But maybe there will be an explanation by Kip Thorne (please!) about how it works.
