The full quote by Augustin-Jean Fresnel is:
“Nature is not embarrassed by difficulties of analysis. She avoids complication only in means. Nature seems to be proposed to do much with little: it is a principle that the development of physics constantly supports by new evidence.”
Quantum physicists maintain, that quantum mechanics is not an emergent property of an underlying reality. They do believe that reality magically finds solutions to hard problems in quantum mechanics.
I don't agree with them. But I am just a random neckbeard on the Internet who likes Bohmian mechanics, which allows for such a underlying reality, the statistical properties of which is what QM describes. For critics who say Bohmian mechanics can't be relativistic, yes it can. For critics who say Bohmian mechanics needs non-locality, non-locality happens anyway in experiments no matter what theory you use to describe it. The real reason why Bohmian mechanics was abandoned was because Bohm and his predecessors were accused of commies. And the western establishment didn't like their ideas.
Navier-Stokes equation has an underlying reality, the emergent properties of which it is trying to explain - it is the fluid particles, which interact with each other using simple laws.
Porsche: there simply is no substitute. -- Risky Business