Quantum everything is unavoidable, because the world is Quantum.
When a non-Quantum explanation is advanced it has to be simple enough to be clearly non-Quantum. Yet, much that was thought to be very simple, turns out to be Quantum!
QUANTUM EFFECTS SHIELD LIFE ON EARTH:
Here is an example: the magnetic shield which protects life originates, everybody agreed, with something more or less like molten iron at more or less at the temperature of the surface of the Sun, circulating below our feet. However, the details did not work out. Researchers at the universities of Washington, Rutgers, Carnegie Institution, just revealed that “Quantum correlations between electrons” were crucial. They help generate twice the thermal convection that the old theory (from 1930), which neglected electron to electron scattering, had found!
“We uncovered an effect that had been hiding in plain sight for 80 years,” Cohen, one of the physicists, said. “And now the original dynamo theory works after all!”
Of course the dynamo theory had to work, for the good and simple meta reason that there was nothing else imaginable in sight! This will to make the dynamo theory work, is an example of metaphysics in action.
METAPHYSICS HELPS DISCOVERY, PHYSICALISM IS ALL THERE IS:
Meta-whatever has its use.
Because of this Meta-Physical reason (the Dynamo Theory HAD to works, thus (some) researchers kept on searching). This is a typical aspect of how metaphysics works. The Will To Explanation is intrinsically metaphysical. (Especially when it is a will to a BETTER explanation.)
According to so-called “physicalism”, a philosophical theory, all that exists in our world (including consciousness) is physical.
Indeed, what else could it be? By definition of physis, nature is all there is. Even the god(s) would be part of nature, should they exist.
(That problem, the problem of who created god, should god exist, makes the existence of god unlikely, let me say in passing; or then “god” is another word for nature, physis… Let a million Jihadists faint.)
Nature is all-encompassing (differently from Allah in the Qur’an, who is one actor out of many, including Shatan, Djinns, Believers, Unbelievers, etc.)
Jealousy is part of nature. So is hope.
CLASSICAL PHYSICALISM HAS NO UNKNOWNABLE SOUL, HOWEVER, QUANTUM PHYSICALISM DOES:
All this “physicalism” sounded scary and unlikely, even ridiculous, as long as the world was viewed as made of tiny billiard balls. How could small balls, predictably colliding, do it all? What happened to Free Will? Was god himself deprived of Freedom, let alone Will?
However, a Quantum peace should have come all over. All over those aware of the Quantum, and its Wave.
The world is made of Entangled Quantum Waves, and no one knows what this entanglement exactly is, if it has a range, if it collapses. Nor does anyone know how these Quantum Waves really behave in all imaginable cases, nor how they achieve their non-locality, or whether they truly collapse, and then why and how if they do.
This is not just all metaphysical sounding, it is also at the core of extremely practical considerations for making a Quantum Computer. Life is a Quantum Computer. Since god does not exist, we need to make our own.
Nobody has any idea what these Quantum Waves are made of. Space? Mind? Even time seems to be sitting on the sidelines, as the Quantum Waves pass by, and fill the universe.
In other words, by going from Classical mechanics to Quantum Physics, our view of nature went from certain, and certainly all-too simple to the point of silliness, to certainly very mysterious, full of baffling possibilities, and nearly as ethereal as consciousness itself.
Quantum Waves can be proven to exist experimentally… with the correct philosophical perspective.
And they don’t reduce to waves a la Bohm (potential waves), or Born (probability waves; Born got the Nobel for that idea). Quantum Waves’ nature and existence can be demonstrated just a bit better than consciousness itself (especially in academic zombies).
A number of physicists, confronted by the sudden possibilities imagination was overwhelmed with, thanks to the Quantum, got over-stimulated, and fell victim of a collective mania, the Multiverse Derangement Syndrome (an attempt to deny the reality of Quantum Waves).
However, it’s somewhat also deranged to consider nature, and consciousness, while trying to go around the elephant in the bathroom, Quantum Physics, as if it did not exist.
This is what all too many thinkers are apparently doing.
In Quantum Physics as we have it, PARTICULAR aspects (when particles show-up) are an epiphenomenon (that’s why, in particular, the definition of a “particle” is not too clear). All the machinery that leads to the particular is wavy, not to say fuzzy. How much? That’s what both Quantum Computer engineers and fundamental physicists such as Haroche are trying to determine. It is both hard physics, and hard philosophy (as not just the motivations are metaphysical, but the subject at hand, Quantum Waves, is certainly metaphysical, in the sense that it is beyond physics as it is commonly understood).
Those who are interested by “grounding” our fundamental views, in particular metaphysics, cannot ignore the Quantum (and, I add, somewhat more controversially, because the conventional, probabilistic (Born), Quantum Interpretation, denies their physicalism), its Quantum Waves.
Should those who claim to try to ground thinking do so, while disdaining the Quantum, they will look deliberately incomplete. Not to say downright silly.
There are non-Quantum explanations. However physics is Quantum, and what is beyond it, metaphysics, has to recognize it is therefore defined by it.