> This solves the alignment problem because now every human has an efficient NN biologically embodied inside them (and for free to all progeny).

That's fine in fiction, but IRL? Well, if I gave everyone an organoid that did this but also it produced cocaine by accident, you can see how that's not sufficient.

It's also a reverse-lobotomy (lobo-plasty?), and it's not reasonable to wonder if the change of personality as a result of an extra blob of mind can be just as severe as the change from a removal of some part of your mind.

> My friend added, then scientists discovered that this mini brain and axonal connection already exists in the gut and develops a way to reactivate it. Lol

I like this twist. Almost "the aliens were in us all along".