Hi! Alexander,

On 29 Nov 18 15:47, you wrote to me:

 AK> Although many scientists have been searching for a long time for a
 AK> catastrophic event that happened about 12000 years ago.

For your viewing pleasure...

  https://www.youtube.com/watch?v=vgX9P3WU_xU

Please note the warning comments from the TEDx people.  I normally use the
speaker's documentaries as an opportunity to feast on popcorn, and then fall
into a food-induced coma (i.e. a sleeping pill thing).  This one had me fully
awake and attentive.  Sometimes amateurs get somethings correct, by accident.

I warn you to accept its evidence, perhaps, and recommend this one to you for a
one-time look (I have a local copy of the shorter version in my library stash).

Cheers,
Paul.

... Objects in taglines are closer than they appear.
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