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The apocalypse scenario is something the human mind seems to want to believe in and to spread. The end times for humanity, if not the entire planet, is the centerpiece of just about every religion. The mind judges actions by their consequences, and the harshest of all consequences, really resonates. It is these stories that we continue to share with urgency, generation after generation after generation, even though they are flat out fantasy tales.
There's only one that's really worth talking about today. About 25 million years ago, the earth was hit by a 7-mile (10 km) wide asteroid. It landed in the Yucatan peninsula of Mexico. Shortly thereafter 90% of all life on the earth was wiped out.
Every few years astronomers locate another big-ass rock in space headed our direction. This being the only apocalypse that's actually proven to have happened, there should be much more emphasis on locating these things and working out how to crack them up before they reach us.
Of course 25 million years since end days is a long time, and the odds are with us.
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