> This exponential curve was extremely slow for the first 100,000 years. (Most people who throw the word 'exponential' around don't realize how slow the initial

> This exponential curve was extremely slow for the first 100,000 years. (Most people who throw the word 'exponential' around don't realize how slow the initial growth is!). It started to speed up a few thousand years ago, and now we are experiencing multiple doublings in our human life spans. I think that's some sort of super-exponential you mean, like alluded to by Kurzweil [0]. Exponential growth means that doubling always occurs at the same interval, so those ancient people would have seen doubling just like us now. Are you using the word "exponential" too lightly ;)? [0] https://www.kurzweilai.net/the-law-of-accelerating-returns https://www.kurzweilai.net/the-law-of-accelerating-returns