Metaphysically, what quantum mechanic “explains” is that particles have superimposed states. Once things are measured in clasical physics, that state is basically chosen.
It is like an opinion survey. No one has really an opinion on anything until a question is asked. Then when asked, the surveyed individual must think and formulate a precise position, but the opposite position could have been taken too at a different time or situation.
At the quantum level, the universe has no “real opinion”, but once it is seen at the classical physics level, it is pretty much frozen in its characteristics.
There maybe an evolution we see, but the formula, the mathematical formulae and patterned chaotic behaviors do not evolve themselves.
Any system, from the solar system to an ecosystem is subject to a level of stability.
Particles have complimentary properties that can’t be measured at the same time.
I just read a joke:
Heisenberg gets pulled over by a traffic cop for speeding. The cop walks up to Heisenberg’s car and asks him: “Do you know how fast you were going?”
“No,” says Heisenberg, “but I know where I am.”
Except that Nature seems to have its own opinions, which is only to be expected if we consider that we, in our bodily incarnations, are part of Nature.
In fact, Uncertainty is what holds up the world! It determines the finite size of atoms, as seen by considering this thumbnail calculation of the Bohr radius based on Uncertainty:
An electron is attracted to a proton, so why doesn't it just stick to it, at rest? ... Because this would confine it to a space smaller than is allowed by "delta x * delta p > h"
Since the average x and p ( vectors ) are both zero, the uncertainty represents the required size and energy of the ground state orbit. If we have p2/2m = e2/r, and p = h/r, then r = h2/2me2, which is the Bohr radius, "to within a factor of order Unity".
This ground state is a caldron of activity, with the electric field of the proton constantly "sampling" the position of the electron via the exchange of virtual photons. Just roll your eyes back and grok!