[Little Pig]

Given how benign nature has been over the last 20,000 years, people forget how awful things can get. All it would take is another of these things to wake up, and there goes civilization down the drain for another hundred centuries.

[blam]

"Given how benign nature has been over the last 20,000 years, people forget how awful things can get. All it would take is another of these things to wake up, and there goes civilization down the drain for another hundred centuries."

Yup. That's just one of a number of things that could happen. After studying the effects of asteroid and comet impacts onto the earth I'm convinced that catastrophies through out history/prehistory have had a major effect on who we are.

We do appear to be in a quiet period presently for worldwide affecting events.

[blam]

Did Asteroid And Comets Change The Tides Of Civilization?

[patton]

How many times has that happened, do you think?