Average life expectancy is a very bad number to compare across such vast amounts of time, especially when you're looking at a disease that only happens in advan

Average life expectancy is a very bad number to compare across such vast amounts of time, especially when you're looking at a disease that only happens in advanced age. Infant mortality rates were dramatically higher in the past and drag that average way down, for instance, say I have a 1 day old infant, and a 100 year old person and they both die, they have a combined 'average life expectancy' of 50 years old. But, once you made it out of the 'childhood illness' mortality stage, most folks could expect to see 70 years old. https://sc.edu/uofsc/posts/2022/08/conversation-old-age-is-not-a-modern-phenomenon.php https://sc.edu/uofsc/posts/2022/08/conversation-old-age-is-n...