There are a few dozen neurons in the bellies of crabs. They control the grinding motions of the stomach.

I would like to see a machine replacement for these neurons that functions just as well as the natural ones before anyone hooks anyone else up to an uploading anything.

Just ... someone please show we can understand how neurons even do things.

It's like building an autonomous drone before you know how to make a paper airplane. (in fact it's much worse than that)

@futurebird this. The largest neural network models have roughly the same number of "neurons" as an insect, but instead of building them to do simple insect-like things, we're pressing them to replace jobs requiring human judgement and reasoning.

(yes, I'm aware that the analogy of artificial neural networks to biological ones is crude)