I am not convinced a human could not edit another human's "weights" to improve their performance if such a thing were possible and could be done safely and could be reversed -- all of which are true in virtual neural networks like these.

E.g. if one could edit brains like this in humans I bet a cognitive neuroscientist could fix some mental disorders with clearly understood biological bases, and I would not be surprised if performance at certain tasks could be enhanced.

What stops us from doing this in practice (most of the time) is that brain surgery is extremely high risk, coarse grained, and irreversible. We do in fact do this for some severe cases.