[null000]

> a fertility crisis or environmental collapse

Not sure it really makes sense to fix a lack of people with something that's extremely labor intensive (at least up front). Not to mention, getting robots to be cheap requires a really highly advanced society, which requires a lot of people and a lot of time.

That said, it'd be interesting to see at what point or under what conditions a robot's total labor output exceeds it's total labor input (including watching it, debugging, programming, etc)