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Astrophysicists and neurosurgeons have engaged in studies revealing that the architectures of galaxies and neurons, while not identical, share striking resemblances. For instance, the brain consists of approximately 69 billion neurons, with each neuron connecting to about five others. This pales in comparison to the cosmic web that could potentially house 100 billion galaxies, each interlinked with about four different connections.
The composition of both systems provides additional similarities; for example, the human brain is roughly 77% water, while dark energy constitutes about 73% of the universe. Furthermore, the dimensions of a mere 2.5 millimeters of human brain tissue demonstrate similarities to expansive cosmic distances—both in appearance and connection patterns.