“Entangling electrons with heat” - https://www.sciencedaily.com/releases/2021/01/210108084106.htm- says, “In quantum computing, entanglement is used to fuse individual quantum systems into one …” Quantum entanglement is defined as “the phenomenon whereby the act of measuring one of a pair of particles determines the result of measuring the other, even when at a distance from each other”. Fusion – short for “nuclear fusion” - is defined as “a reaction in which atomic nuclei of low atomic number fuse to form a heavier nucleus with the release of energy”. They’re both forms of union – the first is quantum mechanical and the second is physical and classically mechanical. They are thus capable of being mistaken for each other and the Martin Fleischmann – Stanley Pons cold-fusion experiments of 1989 could have actually been achievement of quantum entanglement on two conditions – 1) if quantum entanglement, like fusion, releases energy e.g. heat, and 2) if the failure of other scientists to repeat the results of the experiments is due to the Heisenberg Uncertainty Principle and quantum indeterminacy. The inability of scientists to detect reaction products that would indicate fusion lends credibility to the concept of quantum entanglement.

There are deep connections between entanglement and thermodynamics, according to “Vedral, V. Quantum entanglement. Nature Phys 10, 256–258 (2014). https://doi.org/10.1038/nphys2904“ According to “Can Fusion at 30 degrees C Give Us Free Energy” by Gorm Palmgren (Australian Science Illustrated #98), the water in the Fleischmann-Pons experiment did indeed rise from a temperature of 30 degrees C to around 50 degrees C. Vedral also co-authored a paper 10 years previously which said, ““Physicists now believe that entanglement between particles exists everywhere, all the time, and have recently found shocking evidence that it affects the wider, ‘macroscopic’ world that we inhabit.” (Quantum Entanglement in Time” by Caslav Brukner, Samuel Taylor, Sancho Cheung, Vlatko Vedral, http://www.arxiv.org/abs/quant-ph/0402127 [2004]) Such macro-entanglement was confirmed in 2020 when researchers reported the quantum entanglement between the motion of a millimetre-sized mechanical oscillator and a disparate distant spin system of a cloud of atoms. (Thomas, R.A., Parniak, M., Østfeldt, C. et al. Entanglement between distant macroscopic mechanical and spin systems. Nat. Phys. 17, 228–233 [2021] https://doi.org/10.1038/s41567-020-1031-5 ) Later work complemented this work by quantum-entangling two mechanical oscillators (“Direct observation of deterministic macroscopic entanglement” - https://www.science.org/doi/10.1126/science.abf2998).

Earlier, it was pointed out that fusion and quantum entanglement can be mistaken for each other. Could it be that Hans Bethe and Charles Critchfield confused classical and quantum mechanics in 1938 when they decided the Sun and stars are powered by nuclear fusion? Maybe the proton-proton reaction they contemplated – as well as other reactions such as beryllium-boron – are not a physical union caused by extreme temperature and pressure. Maybe the reactions are a quantum-mechanical union generating heat * in a similar way to the 1989 “cold fusion” raising water from 30 C to 50 C. If the Sun operates quantum mechanically, it would be more evidence of macroscopic entanglement as well as, like “Direct observation of deterministic macroscopic entanglement” stated, quantum entanglement being deterministic. Its apparent probabilistic nature might mean it’s related to Chaos theory, where there’s hidden order within seeming disorder. This would revolutionize present ideas regarding the future of the solar system.

* In entanglement, particles obey the conservation laws so that the total heat etc remains roughly the same before and after the process. But the most infinitesimal increase in solar atoms’ temperatures could easily be magnified to a core temperature of 15 million degrees C (27 million F) when you consider the vast number of atoms in the Sun.

In about 5 billion years the Sun is supposed to expand into a red giant and engulf Mercury and Venus and possibly Earth (the expansion would probably make Earth uninhabitable in less than 1 billion years). It's entirely possible that there may not even be a red giant phase for the Sun. This relies on entropy being looked at from another angle - with the apparent randomness in quantum and cosmic processes obeying Chaos theory, in which there's a hidden order behind apparent randomness. Expansion to a Red Giant could then be described with the Information Theory vital to the Internet, mathematics, deep space, etc. In information theory, entropy is defined as a logarithmic measure of the rate of transfer of information. This definition introduces a hidden exactness, removing superficial probability. It suggests it's possible for information to be transmitted to objects, processes, or systems and restore them to a previous state - like refreshing (reloading) a computer screen. Potentially, the Sun could be prevented from becoming a red giant and returned to a previous state in a billion years (or far less) - and repeatedly every billion years - so Earth could remain habitable permanently.