On Quantum Mechanics, Meaning, and the Limits of Metaphysical Inquiry
This post is a rewritten version of an essay I published on this blog in September 2020 under the title “The End of Physics.” The original text captured a conviction I still hold: that quantum mechanics is strange but not mysterious, and that much of what is presented as metaphysical depth in modern physics is better understood as interpretive excess. What has changed since then is not the substance of that conviction, but the way I think it should be expressed.
Over the past years, I have revisited several of my physics papers in dialogue with artificial intelligence — not as a replacement for human judgment, but as a tool for clarification, consistency checking, and tone correction. This post is an experiment of the same kind: returning to an older piece of writing with the help of AI, asking not “was I wrong?” but “can this be said more precisely, more calmly, and with fewer rhetorical shortcuts?”
The result is not a repudiation of the 2020 text (and similar ones here on this blog site, or on my ResearchGate page) but a refinement of it.
If there is progress here, it lies not in new claims about physics, but in a clearer separation between what physics tells us about the world and what humans sometimes want it to tell us.
— Jean Louis Van Belle
1 January 2026
After the Mysteries: Physics Without Consolations
For more than a century now, quantum mechanics has been presented as a realm of deep and irreducible mystery. We are told that nature is fundamentally unknowable, that particles do not exist until observed, that causality breaks down at the smallest scales, and that reality itself is somehow suspended in a fog of probabilities.
Yet this way of speaking says more about us than about physics.
Quantum mechanics is undeniably strange. But strange is not the same as mysterious. The equations work extraordinarily well, and — more importantly — we have perfectly adequate physical interpretations for what they describe. Wavefunctions are not metaphysical ghosts. They encode physical states, constraints, and statistical regularities in space and time. Particles such as photons, electrons, and protons are not abstract symbols floating in Hilbert space; they are real physical systems whose behavior can be described using familiar concepts: energy, momentum, charge, field structure, stability.
No additional metaphysics is required.
Over time, however, physics acquired something like a priesthood of interpretation. Mathematical formalisms were promoted from tools to truths. Provisional models hardened into ontologies. Concepts introduced for calculational convenience were treated as if they had to exist — quarks, virtual particles, many worlds — not because experiment demanded it, but because the formalism allowed it.
This is not fraud. It is human behavior.
The Comfort of Indeterminism
There is another, less discussed reason why quantum mechanics became mystified. Indeterminism offered something deeply attractive: a perceived escape hatch from a fully ordered universe.
For some, this meant intellectual freedom. For others, moral freedom. And for some — explicitly or implicitly — theological breathing room.
It is not an accident that indeterminism was welcomed in cultural environments shaped by religious traditions. Many prominent physicists of the twentieth century were embedded — socially, culturally, or personally — in Jewish, Catholic, or Protestant worlds. A universe governed strictly by deterministic laws had long been seen as hostile to divine action, prayer, or moral responsibility. Quantum “uncertainty” appeared to reopen a door that classical physics seemed to have closed.
The institutional embrace of this framing is telling. The Vatican showed early enthusiasm for modern cosmology and quantum theory, just as it did for the Big Bang model — notably developed by Georges Lemaître, a Catholic priest as well as a physicist. The Big Bang fit remarkably well with a creation narrative, and quantum indeterminism could be read as preserving divine freedom in a lawful universe.
None of this proves that physics was distorted intentionally. But it does show that interpretations do not emerge in a vacuum. They are shaped by psychological needs, cultural background, and inherited metaphysical anxieties.
Determinism, Statistics, and Freedom
Rejecting metaphysical indeterminism does not mean endorsing a cold, mechanical universe devoid of choice or responsibility.
Statistical determinism is not fatalism.
Complex systems — from molecules to brains to societies — exhibit emergent behavior that is fully lawful and yet unpredictable in detail. Free will does not require violations of physics; it arises from self-organizing structures capable of evaluation, anticipation, and choice. Moral responsibility is not rescued by randomness. In fact, randomness undermines responsibility far more than lawfulness ever did.
Consciousness, too, does not need mystery to be meaningful. It is one of the most remarkable phenomena we know precisely because it emerges from matter organizing itself into stable, recursive, adaptive patterns. The same principles operate at every scale: atoms in molecules, molecules in cells, cells in organisms, organisms in ecosystems — and, increasingly, artificial systems embedded in human-designed environments.
There is no voice speaking to us from outside the universe. But there is meaning, agency, and responsibility arising from within it.
Progress Without Revelation
It is sometimes said that physics is advancing at an unprecedented pace. In a technical sense, this is true. But conceptually, the situation is more sobering.
Most of the technologies we rely on today — semiconductors, lasers, superconductors, waveguides — were already conceptually understood by the mid-twentieth century and are clearly laid out in The Feynman Lectures on Physics. Later developments refined, scaled, and engineered these ideas, but they did not introduce fundamentally new physical principles.
Large experimental programs have confirmed existing theories with extraordinary precision. That achievement deserves respect. But confirmation is not revelation. Precision is not profundity.
Recognizing this is not pessimism. It is intellectual honesty.
After Physics Ends
If there is an “end of physics,” it is not the end of inquiry, technology, or wonder. It is the end of physics as a source of metaphysical consolation. The end of physics as theology by other means.
What remains is enough: a coherent picture of the material world, an understanding of how complexity and consciousness arise, and the responsibility that comes with knowing there is no external guarantor of meaning.
We are on our own — but not lost.
And that, perhaps, is the most mature scientific insight of all.




