An optimal society would provide no-cost embryo screening and IVF to couples with the gene for HD, because that cost is certainly far <50% of the lifetime cost

An optimal society would provide no-cost embryo screening and IVF to couples with the gene for HD, because that cost is certainly far <50% of the lifetime cost of living with HD in treatment costs, lost income, and lost QALY's. I hope that we can work towards such a society. (And of course this research is still worth doing to help the population who already have the illness)