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You are
the universe
looking at itself.

100,000 neurons / mm³
1,000,000,000 synapses / mm³

One cubic millimeter of your cortex.
More connections than there are stars in the Milky Way.

H01 Release · Shapson-Coe et al., Science 2021

The architecture is the same.
Nature reuses its best ideas.

10,000,000,000 galaxies in observable universe

The cosmic web.
Rendered from the IllustrisTNG simulation.

Nelson et al., Computational Astrophysics 2019

13.8 billion years.
Complexity accelerating toward now.

You.

86 billion neurons.
~100 trillion synaptic connections.
Reading this sentence right now.

Azevedo et al., Journal of Comparative Neurology, 2009