Question

What is the origin of maxwell's equations are classical mechanics or quantum mechanics or theory of relativity?

Answer 1

Within the year 1926, Einstein had totally become unforgiving of the quantum mechanic's probabilistic interpretation that he had of the universe.

In the mind of Eintstein the universe must always obey the laws of physics which are fundamentally deterministic.

When we look at the last 30 years of Einstein's life we get to see his scientific endeavours that were committed to his vision.