Quantum Mechanics is a METHOD for calculating a probable outcome given the uncertainty of knowing what is, the actual state of reality. Quantum Physics is the proposed ontology that the only real objects in reality are the guesses of what might exist.
In Quantum Physics, ALL “things”/“entities”/“objects”/“elements” are merely thoughts or imaginings. QP is not at all about reality, but about statistical probability assuming one doesn’t know reality for certain. Quantum Mechanics is the use of statistically non-existent averages to make high probability guesses about the existent reality. Every “object” or “element” in Quantum Mechanics is a calculated average, given a name and treated as though it were a real object.
“Multiverse”, in Quantum Physics refers to all possible guesses of what the future might become, assuming one cannot know. But only one will be real. The thought experiment concerning Schrödinger’s cat being both alive and dead “at the same time”, was Schrödinger trying to explain the absurdity of what must be true if one were to take the proposed Quantum Physics seriously. Only an insane, nihilistic mind and society would accept the notion that what is, is also what is not. Yet that is exactly what QP (modern fantasy physics) is all about = the mechanics of guessing about every conceivable fantasy without regard to the certainty of logic. It is the use of logic in the form of statistics in denying the fundamental construct of logic => “self-annihilating” => “dark-age”.
Quantum Mechanics is the use of logic in the form of statistics. Quantum Physics is the denial of logic and is the shinning “Moon” in the darkness that allows for a vague knowledge of what might be while refusing the “Sun” that gives light to what certainly and knowingly is. QM proposes that one can know more precisely of the unknown. QP proposes that there is nothing to be known but one’s own guesses (“solipsism”).