People & Population
How many of us are there — alive now, born today, gone today, across all of history, and as many as the planet can hold? These look like six separate questions. They are really one story, told from six angles: the arithmetic of being human. Start with the live count, then pick a thread.
Humanity right now
One live snapshot that every page in this section unpacks.
About 4 born and 2 die every second. Of the ~117 billion people who have ever lived, the count above is roughly 7% — everyone here, now.
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Six questions, one species
Each has a concise answer up top and an interactive tool to dig in.
Why these numbers all connect
Read these pages together and they stop being trivia and start being a single equation. The roughly 8.2 billion alive today is just the current balance of two flows: the ~385,000 born each day pouring in, and the ~170,000 who die each day draining out. The gap between those two taps is why the live counter above keeps rising.
Run that balance backwards across all of history and you get the 117 billion who have ever lived — of whom today's billions are a mere 7%. Run it forwards and you collide with the question of how many humans the Earth can support, where the honest answer is that it depends entirely on how we choose to live. And trace it through your own line and you reach the strangest result of all: your ancestors multiply so fast that, within a few thousand years, everyone alive becomes your cousin.
Births, deaths, the living, the dead, the limit and the lineage: six pages, one continuous accounting of what it means that there are so many of us — and that there have been so many more.
The turning point hiding in all of them
One fact quietly links every page here, and it overturns the story most of us grew up with. For generations the fear was endless, runaway growth. But births have already plateaued, the rate of increase has been falling for half a century, and the United Nations now projects the human population will peak at around 10.3 billion in the mid-2080s and then gently decline — the first sustained fall in modern history.
Most people reading this will live to see the moment humanity stops growing. That single turning point reframes all six questions: not a species multiplying without limit, but one approaching a peak and beginning to think about what comes after. The numbers below are a snapshot of that pivotal generation — ours.
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Keep exploring
Eight billion alive, a hundred billion gone before us, and one shared family tree connecting every last one. That is the arithmetic of being human.