Younger Dryas impact hypothesis

Has anyone else heard of this? An asteroid/s hitting the Laurentide ice sheet and starting fires that killed the American megafauna and Clovis culture in one hit.

Like Tunguska such an event is teeming with AH possibilities.
 
I saw a feature on this. But its hotly debated. I would say yes though since all the clovis points mysteriously disappear.

In AH terms you got to look at a North America that is much more advanced.
 
I saw a feature on this. But its hotly debated. I would say yes though since all the clovis points mysteriously disappear.
The 'clovis points' were most useful for hunting big game. Once most of the megafuna had gone, whether due to over-hunting or to anything else, their replacement by alternative designs was probably very likely anyway.
 
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