Scientists have used gene editing to produce artificial electrical synapses in mice, where they can be targeted to make the animals more sociable or reduce their risk of OCD-like symptoms.
Long-term editing of brain circuits in mice using an engineered electrical synapse
This is a lab result on mice, so likely still years away from treatments available to humans.
Still, here's a thought to ponder. If gene editing treatments to make people smarter, kinder, and more sociable were widely available, do you think some people would feel threatened ?
Those traits and others correlate with political persuasions. People might argue that people being smarter, kinder, and more sociable are worse for society, in order to protect their political power base.
It think the result would be a caste system where the genetically smarter people control the others like Brave New World.
So yeah that sounds pretty inhumane to have a class of genetically stupid physical laborers controlled by the genetically smart tertiary workers.