While I actually do believe in the Dryas impact hypothesis myself, there is definitely quite a bit of stigma surrounding the idea, especially since controversal

While I actually do believe in the Dryas impact hypothesis myself, there is definitely quite a bit of stigma surrounding the idea, especially since controversal figures like Graham Hancock have embraced it. While I think a lot of his ideas are pretty out there, I do agree with him that I would need substantially more evidence than there actually is for concluding that civilisation really is only 6000-10000 years old. Modern humans have been around for more than 10 times that length and our actual fossil records are incredibly spotty.