I have wondered what would happen after we gain direct, easy and cheap interventional access to our neurochemistry -- dopamine, serotonin, adrenaline etc. That'

I have wondered what would happen after we gain direct, easy and cheap interventional access to our neurochemistry -- dopamine, serotonin, adrenaline etc. That's where human wants and desires and their satiation regulated. This doesnt solve the problem of course because the next question becomes 'how cheap' and how is that to be paid for.