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In this new study they compared the neural network of the human brain to the cosmic network of galaxies, to examine their respective structures. As it turns out, they highlighted several disturbing similarities and suggest that the same physical processes could be at the origin of the self-organization of these structures, which today are of the same level of complexity.
- neurons and galaxies respectively constitute only a small portion of the mass / energy ratio of the brain and the Universe: nearly 75% are composed only of a "passive" element, namely water in the brain and dark energy in the Universe. In both systems, approximately 1010-1011 nodes are interconnected via filaments (neuronal and galactic) - considering as a "node" all galaxies of mass comparable or greater than the Milky Way.
- the researchers examined several independent samples of human cerebral cortex. Their cosmological simulation produced a realistic and current distribution of dark matter, ordinary matter, and magnetic fields. At the highest magnification (x40) of the brain sections, the network of neuronal bodies and filaments showed some similarity to the cosmic web.
- To analyze the fluctuations of matter in either system, the scientists calculated the spectral density of each. However, their analysis showed that the fluctuation within the brain - on a scale of 1 micrometer to 0.1 millimeter - followed the same progression as the distribution of matter in the cosmic network, which it extends from 5 million to 500 million light years :
- The researchers also looked at other parameters characterizing the two systems, including the average number of connections for each node and the tendency for multiple connections to cluster around a major central node in the network. Here again, the resemblance was surprising. Which led the two colleagues to believe that the connectivity within these two networks was probably guided by identical physical principles. While the forces regulating galaxies and neurons are obviously completely different ...
"These two complex networks have more similarities between them than what one would observe between the cosmic network and a galaxy or between the neural network and a neuron", summarizes Alberto Feletti.
study : https://www.frontiersin.org/articles...20.525731/full
Fascinating ! What do you guys think of it ?
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