Interesting chart based on research done by OurWorldInData.org; we see how key Human factors have changed over the last 200 years. Child mortality is the most striking chart for me, going from 43 deaths per 100 in 1820 down to 4 deaths in 100 in 2015, the effect of medical science becoming pervasive. All of these charts are moving in the "right" direction for those of us interested in maximising Human well-being; although worryingly democracy is perhaps the shakiest looking chart of all, it's certainly the most spiky, I do hope we're not entering another huge trough like we did in the 1940's.
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