When doing the calculations be sure to QA your LYs. Spending an extra week lying doped up and in pain in a hospital bed may not be worth all that much. Also with medical research, you often wind up with a patented drug which then costs $1e5 per patient treated at least for the first decade or two of its use at least as used in the USA and other non-single payer countries. Or it requires $1e5 of medical professional intervention per patient to implement. My priors are that the low-hanging fruit is not in turning 90 year olds into 91 year olds, and won’t be for many decades.
When doing the calculations be sure to QA your LYs. Spending an extra week lying doped up and in pain in a hospital bed may not be worth all that much. Also with medical research, you often wind up with a patented drug which then costs $1e5 per patient treated at least for the first decade or two of its use at least as used in the USA and other non-single payer countries. Or it requires $1e5 of medical professional intervention per patient to implement. My priors are that the low-hanging fruit is not in turning 90 year olds into 91 year olds, and won’t be for many decades.