Thank you for establishing the point I made, in my first post to this thread.
ie: Physicists have been debating how electromagnetism (one of the four known forces), atomic structure/electrons, Particle/Wave Theory, etc, work for numerous decades (ie: most notably, since 1927 Solvay).
Particularly interesting was the constant arguing, between Bohr and Einstein* at that conference. *(Who actually were and always remained friends/mutual admirers)
Since then: many of the theories Bohr (et al) put forth, contrary to Einstein's criticisms, have been proven correct, regarding Quantum Mechanics/atomic structure, Quantum Entanglement, photons, etc. Thankfully, a multitude of SS electronic devices have resulted, from the furtherance of those studies.
It's those studies, and the truths/measurements gleaned, on which I base my opinions/hypotheses, far as the differences many of us hear in our systems, when making various changes/upgrades/tweaks.
Much of Einstein's (Special & General) Relativity has also been proven correct, on the macro scale. Probably: more to come as our abilities to observe and measure evolve.
Einstein spend the better part of his latter years, in an effort to reconcile Quantum mechanics and Relativity, (a Grand Unification Theory) to no avail.
An interesting side note: Einstein scoffed at the possibility of Black Holes, though it was his own theory on gravity, that led to their prediction. Even the Great One, himself, wasn't immune to the tendency.
Telsa, as mentioned: I regard as an innovator and regardless of his views on Einstein's theories, he gave the planet a plethora of inventions, that that made the every-day much easier. A number, for which others were given the credit.
Too bad he didn't have better business acumen.
Tesla said the following on the theory of relativity in a 1935 New York Times interview: "The theory, wraps all these errors and fallacies and clothes them in magnificent mathematical garb which fascinates, dazzles and makes people blind to the underlying errors.
Someone got the last laugh, and it was not Tesla. Einstein was both confident and humble. Tesla not so much.