Sleeppy
Fatalist. Christian. Pacifist.
It's just a matter of wasting too many resources studying rather than engaging in normal human endeavors that even grad students usually do. When one looks up some reference material to answer a relatively simple question they forgot about, and then finds that they have spent over 36 hours delving into a research topic they never intended to, one is not impressive, but obsessive.
This was a very friendly jest, by one I respect and who has been kind enough to put up with a great many of my incredibly long posts that are too often tangential.
As it turns out, we don't know what the "quantum level" is. That's why currently physicists in quantum mechanics have fundamentally changed their approach. Instead of preparing some quantum system, letting it run, and then measuring it (i.e., not interfering with the system until measurement), they see how different kinds of interference can enable macromolecules to exist in superposition states and things like that. Basically, they test the conditions under which the "weirdness" of quantum physics can exist or can't. We can, for example, make hundreds of atoms exist in a superposition state (2 or more distinct and mutually exclusive states), but we can only do so under certain conditions. This is called the quantum-to-classical transition, and it involves the way in which the world as we experience it (in which cats aren't both alive and dead at the same time) is "recovered" or "transformed from" the quantum realm.
As for whether the randomness has causes that aren't being seen, that used to be a much more common view. Time was that we "thought experiments" (Wheeler's delayed choice experiment, Schrödinger's infamous dead/alive cat, etc.) were only thought experiments. Now they have actually been carried out in some form. I got into quantum physics from neuroscience just to show that quantum theories of consciousness were wrong. 2+ years of study later, I still can't answer this. Most physicists who work in a field of quantum physics would say it's highly unlikely that randomness doesn't play a role in physical systems. The problem is that we're dealing with systems that cannot be observed by any technology without altering them in non-trivial ways. But quantum mechanics has proved to be incredibly successful, and is fundamentally based on a mathematical representation of physical systems that entails randomness and indeterminism.
Much, much easier to read. Thanks for dumbing it down for me, friend. I'm still.very impressed at your dedication and recalling of all this information. So thank you for sharing with me.