Yes, and I recommend the article: it confirms that life expectancy was 38 and only 8% of people reaching adulthood lived to be 60.
The article is trying to say that life expectancy is reduced by high child mortality, but that's a pretty harsh adult life expectancy too. Surely almost everybody alive was under 30.
Actually, that's still true: a majority of people in the world are under 30.
Newton himself lived to be 84. He published Principia Mathematica aged 45. As the article explains, life expectancy is just an average.
But it is relevant here: if most people alive are under 30, most stuff gets done by under 30s.
The article is trying to say that life expectancy is reduced by high child mortality, but that's a pretty harsh adult life expectancy too. Surely almost everybody alive was under 30.
Actually, that's still true: a majority of people in the world are under 30.
Newton himself lived to be 84. He published Principia Mathematica aged 45. As the article explains, life expectancy is just an average.
But it is relevant here: if most people alive are under 30, most stuff gets done by under 30s.