10 Ways the World Could End

I just ran across this really cool video of a talk given by Steven Petranek at the TED conference. He describes 10 ways in which humanity could immediately end or become vastly affected. He also describes what we can do to prevent all these things. The talk was given a few years back but it’s still just as relevant if not more so today. It’s about a half hour long but worth watching I’d say.

Some things I learned that really struck me are it would take 300-500 years to terraform Mars so we should get started. Also we are just as likely to die from a really big asteroid as we are from a passenger airline crash.

Here’s his list of how the world could end. It’s kind of ordered from least likely to most likely.

10. We Lose the Will to Survive

9. Alien Invasion

8. Ecosystem Collapses

7. Particle Accelerator Mishap

6. Biotech Disaster

5. Reversal of the Earth’s Magnetic Field

4. Giant Solar Flares

3. New Global Epidemic

2. We Meet a Rogue Black Hole

1. A Really Big Asteroid Heads for Earth

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