Dear Peter,
You wrote an interesting, provocative and entertaining Essay which deserves the highest score.
It is strange that John Bell's comment on Bohr et al's assumption that no classical QM derivation could exist seems the opposite of the result of his famous theorem.
I have a question: Are your statements that
"the apparently most ridiculously simple of concepts can resolve and unite incomplete and incompatible theories. That simple concept is relative motion"
connected with general covariance?
Concerning your statement that
"Relativity and Quantum Mechanics, often seen as fundamental, may share a single derivation"
maybe you could be interested in my Essay, where I discuss physics unification from another point of view with... Albert Einstein!
Congrats again and good luck in the Contest.
Cheers, Ch.