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In his illuminating paper “Mathematics of black holes in Newtonian physics”, Amrit Sorli challenges the weaknesses of general relativity regarding gravitational singularities, curvature of space and geometrization of gravity, by developing a model of gravity where the gravitational force is carried by a variable energy density of dark energy intended as a fundamental background that rules the processes of nature. By extending the mass-energy principle equivalence to dark energy, Sorli replaces the curvature of space of general relativity with the concept of a variable energy density of dark energy, finding that black holes are simply stars with extremely high mass, where Newtonian shell theorem works well, allowing to avoid singularities, in the sense that at the centre of a black hole the first law of thermodynamics is maintained. Sorli’s model leads to the fundamental prediction that, in the centre of a black hole, the energy density of dark energy changes the electromagnetic properties of the local space, making atoms unstable and, as a consequence, determining cyclic processes of conversion old matter-dark energy-new matter. The compelling concept of black holes as rejuvenating systems of the universe is therefore introduced, which can open new scenarios into contemporary cosmology, which are worth to be explored.

Despite some aspects of the model suggested in this paper are speculative and need to be further developed from the mathematical point of view, in my opinion Sorli’s paper deserves attention paper and can provide a meaningful contribution to the literature on the subject.

Davide Fiscaletti

Competing interests

The author declares that they have no competing interests.

Use of Artificial Intelligence (AI)

The author declares that they did not use generative AI to come up with new ideas for their review.