74,000 years ago, humanity faced extinction.
The Toba supervolcano in Indonesia erupted with a force unlike anything in modern history. It ejected 2,800 cubic kilometers of rock and ash into the atmosphere.
For six years, volcanic winter gripped the planet. Temperatures dropped by 21 degrees. Plants died. Animals starved.
And humans? Our population crashed from hundreds of thousands to possibly just 10,000 individuals.
Some scientists believe it was even fewer. Perhaps just 3,000 to 10,000 breeding pairs survived the catastrophe.
This is called a genetic bottleneck. And the evidence is written in our DNA.
Compared to other species, humans have remarkably low genetic diversity. Chimpanzees have more genetic variation than all 8 billion humans alive today.
We're all descended from that tiny group of survivors who made it through the volcanic winter.
They found food when there was almost none. They kept warm when the sun barely shone. They refused to die.
Every human alive today carries their resilience in our genes.
The next time you think humanity is fragile, remember this: we've already survived the apocalypse once.
And we're still here.