[anigbrowl]

better off today in almost every measurable way

Quants are not the only people entitled to have an opinion on this. While I mostly like the modern world it has lots of downsides too. Simplistic measures like life expectancy reduce the business of living to a handful of metrics and then pronounce things to be good or bad according to how those arbitrary criteria measure up.

That's great if you want to live in a world that's run like a factory where productivity is the highest social good. I don't. I would be fine with dying at 60 or even tomorrow, not because I don't want to live any more but because I've chosen to set my own goals about what sort of life and activity I find meaningful rather than simply maximizing some inherited utility criteria.

Long life would be nice, in general, but it's a fact that one's life might be arbitrarily cut short by some random accident. In your world being out at one extreme or the other of the probability distribution is statistically interesting but nothing more. Your value system lacks any criteria for determining the worth of life other than the most primitive feedback loop of maximizing whatever quantitative factors you've set yourself to measure.