system
A chat on subreddit /r/NoStupidQuestions
human
The average lifespan in the world is 69. In the US it's 74 along with Europe. People consider 70 to be old because it is.
gpt
I meaaaaaan the average world lifespan is a deceptive number because there are so many places where a ton of people are dying young, thus bringing the average down. I'm surprised the US isn't lower than "Europe" though (not that it's really comparable when one is a country and the other is a continent). Most healthy people in first world countries are living past 70.