I’ve heard it explained as a density problem but that doesn’t make sense too me either because then wouldn’t having a smooth brain mean it’s more solid?
In: 113
For some reason, possibly even just random luck, evolution has made it so the surface of the brain is where the “thinking” happens, with the inside of the brain being more about connections between different areas of the brain.
So more wrinkles = more surface area = more of the thinky parts of the brain.
[Further reading](https://www.technologynetworks.com/neuroscience/articles/gray-matter-vs-white-matter-322973)
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