Since it seems that some on this forum are already on LSD, this quote might help us venture towards the cutting edge of musical and tonearm theory more thoroughly, if that’s even possible:
Forks in the quantum road
At its essence, the ontic vs. epistemic debate hides the ghost of objectivity in science. Onticists deeply dislike the notion that observers could have anything to do with determining the nature of reality. Is an experimenter really determining whether an electron is here or there? One ontic school known as the Many Worlds interpretation would say instead that all possible outcomes are realized when a measurement is performed. It’s just that they are realized in parallel worlds, and we only have direct access to one of them — namely, the one we exist in. In Borgean style, the idea here is that the act of measurement forks reality into a multiplicity of worlds, each realizing a possible experimental outcome. We do not need to speak of the collapse of the wave function since all outcomes are realized at once.
Unfortunately, these many worlds are not accessible to observers in different worlds. There have been proposals to test the Many Worlds experimentally, but the obstacles are huge, for example requiring the quantum superposition of macroscopic objects in the laboratory. It is also not clear how to assign different probabilities to the different worlds related to the outcomes of the experiment.
The agent and the nature of reality
On the epistemic side, interpretations are just as varied. The Copenhagen interpretation leads the pack. It states that the wave function is not a thing in this world, but rather a mere tool to describe what is essential, the outcomes of experimental measurements. Views tend to diverge on the meaning of the observer, about the role the mind exerts on the act of measuring and thus on defining the physical properties of the object being observed, and on the dividing line between classical and quantum.
From: bigthink.com. (Cannot post link without being blocked)