NASA: Nothing bad will happen to the Earth in 2012. Our planet has been getting along just fine for more than 4 billion years, and credible scientists worldwide know of no threat associated with 2012.
Me: What wiped out all large mammals in the Americas just 10,000 years ago, and is there a connection with a human population low point suggested by genetic investigations in that era.
NASA: Just as the calendar you have on your kitchen wall does not cease to exist after December 31, the Mayan calendar does not cease to exist on December 21, 2012
Me: What does Mayan & Aztec myth describe as happening the last few times the Long Count calendar ended, before ticking over (hint: all humans were destroyed).
NASA: They claim a relationship between the rotation and the magnetic polarity of Earth, which does change irregularly, with a magnetic reversal taking place every 400,000 years on average. As far as we know, such a magnetic reversal doesn’t cause any harm to life on Earth. A magnetic reversal is very unlikely to happen in the next few millennia, anyway.
Me: On average are we overdue for a magnetic reversal. Is saying it is unlikely to happen in the next few millennia just tricking us with statistics? (Most reversals have not happened within 2000 years of the 400,000 year average). Did you say the same about New Orleans? If someone crossing the road with their eyes closed had a 48% chance of being run over and killed, would you call that an “unlikely” possibility??
NASA: Today NASA astronomers are carrying out a survey called the Spaceguard Survey to find any large near-Earth asteroids long before they hit. We have already determined that there are no threatening asteroids as large as the one that killed the dinosaurs.
Me: What about comets?? I guess you don’t mention them because you don’t have the resources to spot them – most comets are discovered by amateurs. And would something lesser than what wiped out the dinosaurs still be a threat to the survival of humankind?
And don’t forget dark comets…
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