Hello! I'm trying to think of a (relatively) simple way to explain this issue to someone. Don't worry, I'm not interested in "magic" talk about free will or anything of the sort, just a clarification of terms. Is it fear to break down the, completely hypothetical, "theory of everything" as so:
1. General Relativity is (seems to be?) determinate.
2. Quantum Mechanics is (seems to be?) indeterminate. The Uncertainty Principle means not only that we can't determine QM through observation, but that the system seems to be fundamentally indeterminate.
3. Einstein, to the end of his days, insisted that we're missing variables that would remove the apparent uncertainty in QM, but my understanding is that the Uncertainty Principle is inherent to QM. This is the source of the Einstein/Bohr debates, and the common consensus is now that Einstein was wrong to insist QM can't be indeterminate. Is this a fair description of events?
4. The "holy grail" Theory of Everything would unify GR & QM because, from what we know, they cannot both be simultaneously true. And they cannot both be simultaneously true... because the determinism & indeterminism cannot co-exist? Is that the core reason for non-compatibility?
Is that a fair way of describing the issue? Further clarification/discussion/recommended readings would be great too.
Dankeschön!