There are some 1.2 million car-crash-disabled people in the US, let's say they've accumulated over last 20 years on average, basically we need to triple the roa

There are some 1.2 million car-crash-disabled people in the US, let's say they've accumulated over last 20 years on average, basically we need to triple the road toll and add for maintaining the disabled, so maybe cars need to save people 20 minutes per day. Still an easy win for cars. Reducing car use and other measures to reduce car fatalities i.e. speed limits are only meaningful in this "productive man-years" dimension if you don't end up stealing more time from people's lives waiting for buses and driving 40kph. In terms of fighting diseases that reduce productive man-years over say last 80 years, it's a very successful war, and there's little surprise that business is the best way to do it, just like many other things. Looking at age-at-death, all causes plots for the US [0], where most people die past productive age, one can reasonably guess that the war on disease is in some sort of diminishing returns equilibrium, where saving an extra man-year costs more than one man-year, go figure. [0] https://siepr.stanford.edu/publications/policy-brief/life-expectancy-and-inequality-life-expectancy-united-states https://siepr.stanford.edu/publications/policy-brief/life-ex...