I would not want to live in a world where the average life expectancy was 25 years, and where most people died from exposure to the natural elements, easily cur

I would not want to live in a world where the average life expectancy was 25 years, and where most people died from exposure to the natural elements, easily curable diseases, or being eaten by wild beasts. Sure, they may have enjoyed a life free of that ol' 9-5 grind, but I much prefer air conditioning and vaccines to stoning rabbits to death to evade starvation every week.