Title: What is the quantum observer effect? - Quora
Headings: What is the quantum observer effect?
What is the quantum observer effect?
Content: That gap was filled later by Quantum Field Theory, but unfortunately this theory is either forgotten or ignored or misunderstood. That’s why I wrote my book, now in it’s third edition (see quantum-field-theory.net). Here’s what I wrote about the role of the observer: “QM offers no explanation or statement about when the wave-function (which describes probabilities) collapses, other than that collapse has surely occurred when a measurement is made – i.e., when someone looks. The question of when collapse occurs is known as the measurement problem, “the most controversial problem in physics” ( http://informationphilos­opher.com ). This led to a philosophy known as the Copenhagen school (after the great Dane, Niels Bohr) which states, to put it simply, that nothing happens until someone looks. If all we have are mathematical probabilities, then until the observation is made, we can only talk about probabilities. As to reality, we must give up hope of understanding it. “This was too much for Einstein and Schrödinger to swallow. Can it be that nothing really happens — that there are only probabilities — until someone looks?