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meindnochtoday at 8:11 AM1 replyview on HN

Fun fact: 80% of the brain's neurons are in the cerebellum, not the cortex.

In other words: only <20% of pur neuron budget goes to higher cognition (thinking, language, seeing, hearing). 80% is spent on motor skills.


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dinfinitytoday at 8:57 AM

> 80% is spent on motor skills.

The cerebellum isn't just for motor skills. It's more of a place where very commonly used patterns get a bunch of dedicated wetware so the computation is superfast and precise. In an (undoubtedly very limited) analogy a bunch of FPGAs to complement the general processing. It does make a lot of sense to use this functionality for motor skills, though.

See:

- https://pmc.ncbi.nlm.nih.gov/articles/PMC4089997/

- https://pubmed.ncbi.nlm.nih.gov/38663092/

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