Rich: could you please, in a paragraph or two, describe the conversation? It's a bit hard to tease out of a mail trail.
I presume: - The http://en.wikipedia.org/wiki/Younger_Dryas period of roughly 12,000 years ago was of interest. - The interest had to do with surprising extensions, some being basically instant freezing of large mammals. - Why the Younger Dryas occurred is under speculation but an extraterrestrial event with a comet-train like event is mentioned, as is a 4-mile wide meteor. - Finally, I think the conspiracy-like element of the conversation is that an impact of this nature within just 12,000 years is FAR outside what we are comforted with by astronomers saying they only happen every <very large number> of years. Is that right? Could you fill in the details? Or point to a single, simple article on this? It does sound interesting but narrative would help. -- Owen
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