These characterizations of a happiness drug contradict the forces of evolution.
If any such a drug were to be developed, it would indeed sap ambition from many people. Even assuming it accounts for all existing relevant genetic variation, it wouldn't prevent genetic mutation. So those born with mutations that make the drug less effective will procreate with relative ease, eventually correcting for the drugs adverse effect on the survival of the species.
Of course if cultural (political?) forces also established that any genetic variation was bad, then we would indeed be in trouble. Why? With no threat of pain, and the absence of pleasure replaced by unlimited pleasure, what goals would exist? What would motivate action? Or given a relativistic perspective, what would just motivate procreation?
If any such a drug were to be developed, it would indeed sap ambition from many people. Even assuming it accounts for all existing relevant genetic variation, it wouldn't prevent genetic mutation. So those born with mutations that make the drug less effective will procreate with relative ease, eventually correcting for the drugs adverse effect on the survival of the species.
Of course if cultural (political?) forces also established that any genetic variation was bad, then we would indeed be in trouble. Why? With no threat of pain, and the absence of pleasure replaced by unlimited pleasure, what goals would exist? What would motivate action? Or given a relativistic perspective, what would just motivate procreation?