There's a reason we remember The Black Death. A reason why it imprinted so heavily on the memories of our ancestors. For the first time, we were humbled by a planet that felt we were overstepping our bounds. We had expanded beyond the capacity for Earth to sustain us so, in four short years, it cut the population of the known world in half.
After the end of World War I, there was a flu pandemic. We had spent four years turning vast swaths of Europe into permanently unarable scar tissue. 16 million soldiers killed each other, but it wasn't enough. So the 1918 Influenza killed another 75 million.
Then there was the AIDS virus. Killed 35 million people before anyone could bother to give a shit, and another 20 million before they could cure it.
The point is, every time mankind started to tip the scale, nature would rear up and keep us in line. A strong dose of chemotherapy against the cancerous growth of our species.
But not every cancer patient survives.
Sometimes the cancer wins.
And that's why we're here.
We finally managed to kill the planet.