Causality Quote by Max Planck

It is true that in quantum theory we cannot rely on strict causality. But by repeating the experiments many times, we can finally derive…

— Werner Heisenberg

Among the lesser effects of quantum theory are gaping holes in old ideas about causality.

— Ian Hacking

In quantum mechanics there is A causing B. The equations do not stand outside that usual paradigm of physics. The real issue is that…

— Brian Greene

The very nature of the quantum theory ... forces us to regard the space-time coordination and the claim of causality, the union of which…

— Niels Bohr

The act of observing a quantum event probabalistically influences its outcome.

— Dean Radin

Quantum mechanics broke the mold of the previous framework, classical mechanics, by establishing that the predictions of science are necessarily probabilistic.

— Brian Greene

“Every problem in quantum physics had to be first “solved” using classical physics, and then be reworked by the judicious insertion of quantum numbers…

— John Gribbin

“Unlike classical certainty, quantum systems describe likelihoods, not fixed outcomes.”

— Ludmila Morozova-Buss

When the problem [quantum chromodynamics] is finally solved, it will all be by imagination. Then there will be some big thing about the great…

— Richard P. Feynman

“But if it is true that the act of observing changes the thing which is observed (because of Quantum), it's even more true that…

— Terry Pratchett

Classical physics has been superseded by quantum theory: quantum theory is verified by experiments. Experiments must be described in terms of classical physics.

— Carl Friedrich von Weizsacker

Before the discovery of quantum mechanics, the framework of physics was this: If you tell me how things are now, I can then use…

— Brian Greene