this is misleading, the article starts by saying that life expectancy was 30-35 but then goes on to say that this is the average lifespan, which includes the fact that most people died in childhood.
When accounting for that, the average lifespan becomes at least 50 years old.
It’s also only recently that we’ve been living for so long.
https://www.verywellhealth.com/longevity-throughout-history-2224054#toc-prehistoric-life-expectancy
this is misleading, the article starts by saying that life expectancy was 30-35 but then goes on to say that this is the average lifespan, which includes the fact that most people died in childhood.
When accounting for that, the average lifespan becomes at least 50 years old.