The moon isn’t there when you’re not looking at it

Einstein’s Real Breakthrough? Quantum Theory
November 01, 2013

Einsten went for the Unified Field Theory and beautiful mathematics and he sort of felt less willing to just listen to what nature was telling him. So as I argue in the book, I think it was his philosophical beliefs about why he was doing science and why it was a noble pursuit, you know, sort of the justification of his life’s mission, which was to find these objective truths about the world that were independent of man: Eternal truths.

And because quantum mechanics seem to involve an observer, he really didn’t like that framework and he used to say in this just shorthand, do you really believe that the moon isn’t there when you’re not looking at it?.

see also:
Yale Engineering & Technology
Einstein dismissed quantum mechanics with “God does not play dice”

Princeton University Press