RyukaTana wrote:Life expectancy is a shitty way to measure how good the world is, since population rates go up with it, and with an increase in population comes overpopulation issues, an increase in poverty rate. People living longer in shittier situations is a negative, by my reckoning. Not saying that that's what is happening, I'm just tired of seeing an overvaluing of just existing, rather than valuing quality of life.
A good point, but it's not as if life expectancy exists in a vacuum. People don't just magically live 20 years longer than they used to: high life expectancy requires good health care, low violent crime, good nutrition, high education, stable government, and so on. Happiness is correlated with good health - there's even studies that show being happier has direct health benefits.
Life expectancy is even tied to equality: there's diminishing returns in life expectancy, and for the price of a course of chemotherapy to save one first-world cancer patient, you could buy a hundred courses of antimalarials to save a hundred third-world children. If the rich cancer patient's money were more equally distributed, it could increase life expectancy. (Not that people shouldn't be able to afford cancer treatments if they need them, of course.)
I'm not saying life expectancy is the ideal measure of society's progress, but it's probably the simplest one. Anything more complicated (like the UN's Human Development Index) means you risk focusing on the official criteria for success rather than striving for genuine success.
... in bed.