If that wasn't true then most of the advancements in the 20th century wouldn't have happened. We didn't rely on some superior gene pool, instead we just educat

If that wasn't true then most of the advancements in the 20th century wouldn't have happened. We didn't rely on some superior gene pool, instead we just educated our children in a way that exceeded our expectations. Also, not raising children means people have more time to spend on technological progress.