https://www.goodreads.com/book/show/57906379-extra-life tackles similar questions and claims fertilizers, sanitation, and vaccines saved billions of lives each:
https://www.workersliberty.org/story/2022-01-25/20000-days-history-life-expectancy
https://www.goodreads.com/book/show/57906379-extra-life tackles similar questions and claims fertilizers, sanitation, and vaccines saved billions of lives each:
https://www.workersliberty.org/story/2022-01-25/20000-days-history-life-expectancy