Things that make you go hmmmmmm....pic.twitter.com/Gbl2AlpXsV
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The universe is not a brain, but it has emergent properties that are similar to a brain (or a root structure, or many other natural phenomenons). Seeing this and finding common patterns is powerful and useful. AKA take the comparison seriously but not literally. ;)
The universe does not even look like a brain. The neocortex is 2D, just a few tens of neurons deep, and the similarity is an artifact of how many cells and which cell types you color, and where you crop the frame. The universe looks more like a polymerized sponge, for good reason
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