An astrophysicist and a neurosurgeon teamed up on the ultimate galaxy brain theory.
It may sound like the beginning of a bad joke, but what a pair of Italian researchers came up with is a truly galaxy brain take: The structures of the observable universe, they say, is astonishingly similar to the neuronal networks of the human brain.
The brain contains an estimated 69 billion neurons, while the observable universe is composed of at least 100 billion galaxies, strung together loosely like a web. Both actual galaxies and neurons only account for about 30 percent of the total masses of the universe and brain, respectively. And both galaxies and neurons arrange themselves like beads on long strings or filaments.
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