fertility

Hans Rosling's TEDxSummit talk asks whether some religions have higher birth rates and how that affects population growth. He charts data across time and religions and reaches a surprising conclusion about fertility.

Patrick Boyle examines why birth rates are falling in nearly every country and argues the standard explanations do not hold up. He presents data suggesting fewer couples forming is a major driver.

The opening scene of the 2006 film Idiocracy, which explains in a short montage how average intelligence declines as less intelligent people have more children.

A Kurzgesagt animation on South Korea's record-low fertility rate and rapidly aging population. It explains why a demographic collapse looks hard to reverse and projects the population shrinking sharply by 2060.