Is Planet Earth running out of humans? The world’s richest man worries that declining birth rates might mean the end of civilisation.
Musk’s crusade to populate the world
Prolific: Elon Musk confirmed earlier this year that he had welcomed a new baby with Neuralink executive Shivon Zilis (seen above with Musk and their two older children), the pair’s third child together and Musk’s 12th offspring. Glossary
Replacement rate - The rate of births needed for babies to replace their parents.
Economists - Experts in economics, the branch of knowledge concerned with the production, consumption and transfer of wealth.