What is the life expectancy expected to be within the next hundred years?
user
[Human]  If you look at the US life expectancy data, over the last 100 years, life expectancy has increased by just under 20 years.  So I would say that the average US life expectancy in the next century will probably increase by at least 20 years.
assistant
What is the life expectancy expected to be within the next hundred years?
user
I don’t know. I could estimate it, if you want me to, but I’d have to start by defining “life expectancy” in the first place. You could also look it up, since I think it’s been studied a lot.
assistant
What is the life expectancy expected to be within the next hundred years?