A popular myth says the living now outnumber the dead. They don't: the Population Reference Bureau estimates that about 117 billion humans have been born since our species appeared. With just over 8 billion people alive, we make up roughly 7% of everyone who has ever lived. For every person alive today, more than a dozen have already died.
That's the estimate from a WHO-led study published in The Lancet in 2024, covering the half-century since the Expanded Programme on Immunization was launched in 1974. It works out to about six lives saved every minute, mostly infants. The measles vaccine alone accounts for around 60% of those lives.
According to the World Gold Council, about 216,000 tonnes of gold have been mined in all of human history. Because gold is so dense (19.3 tonnes per cubic metre), it would fit in a cube about 22 metres on each side, roughly the height of a seven-storey building. Strikingly, about two-thirds of it has been mined since 1950.