Why We Live Longer and Better

In the last piece, I explained why we all are living longer and doing better than people born just a 100 years ago. I ended with this question. How did this happen? What dramatic changes in the last 200 years compared to the prior 30,000 years led to an improvement in the health and longevity of every human being on this Earth along with increasing prosperity and growth so that we managed to reach a total of 7.5 billion people on this planet?

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