Why has the human population increased so much in the last few centuries, although we actually invented effective birth control methods?

Question

Why has the human population increased so much in the last few centuries, although we actually invented effective birth control methods?

In: 211

Answer 1

Because people who want tp have children still have children, and pur massive efforts to reduce Infant Mortality over the generations mean that people can have a *lot* of children, and expect almost all of them to survive to adulthood.