The double slit experiment is the basis. In this experiment you can for instance send electrons, one at a time through a plate with two slits and then the electrons hit a screen onto which a pattern emerges. The pattern proves that electron are waves. Even if you send one electron at a time. If you place detectors at the slits to see which one of the two slits the electron pass through, then the pattern on the screen shows that the electrons are now particles. The detectors do not really interfere with the electrons, it is the fact that an observer observes the electrons that causes the electrons to become particles. Now the interesting point is that even if no human observes the data from the detectors, then the electrons will still behave as particles. Thus this proves there exist an observer that is not human. An observer with computation, memory and senses. I.e the divine. This proof is true if you believe the laws of physics are true. Otherwise it is not a proof.