Yeah, you are right, but I think that is the standard they use for birthrate these days - though will have to check in with it.
I knew about post humanism a lot sooner than many, because of sci-fi stories.
This is one aim of art I think - give a glimpse of a possible future and think about whether we want to develop it or not. Life imitates art, because action follows thought.
And, a fiction book can be full of truths - Shakespeare is a prime example of insight into human behavior and it still holds up 400 years later.
That kernel of truth is what is so attractive - I don't want reality, I want possibility of future realities, based on what we know today.