Damn, this author is on fire. This is another recent paper by him: https://arxiv.org/pdf/2602.16382

Feynman famously asserted that interference is the only real mystery in quantum mechanics
(QM). It is concluded that the reason for this mystery, and thereby the related mysteries of
complementarity, non-commutativity of observables, the uncertainty principle and violation of
Bell’s equality, is that the axioms of QM depend vitally on the continuum nature of Hilbert
Space, deemed unphysical. We develop a theory of quantum physics - Rational Quantum Mechanics (RaQM) - in which Hilbert Space is gravitationally discretised. The key to solving the
mysteries of QM in RaQM is a number-theoretic property of the cosine function, concealed in
QM when angles range over the continuum. This number-theoretic property describes mathematically the utter indivisibility of the quantum world and implies that the laws of physics
are profoundly holistic. We contrast holism with nonlocality. In theories which embrace the
continuum, the violation of Bell’s inequality requires the laws of physics to be either nonlocal
or not realistic; both incomprehensible concepts. By contrast, holism, as embodied in Mach’s
Principle or in the fractal geometry of a chaotic attractor, is neither incomprehensible nor unphysical. As part of this, we solve the deepest mystery of all; why nature makes use of complex
numbers.

(emphasis mine)

Let's revisit these works in a few years and what will have come of it.

He says his RaQM theory should be testable within 5 years.

@remindme in 5 years.

cool