Originally posted by Thequ1ck
According to your logic, doesn't the fact that you hadn't heard of it then make
it more viable?
How do you conclude that? I'm suspicious of everything, whether from multiple sources or just one source. I've seen many photoshopped images, and faked-up video clips, and its obvious that even a multiplicity of sources can't be trusted, because they're often getting their information from the same (dodgy) original source. So I always start with disbelief, and sometimes allow myself to be convinced where someone thinks it's worth their trouble to justify their statements.
Further research, not on the History.com site but in more general areas, indicates that most of the video's factual statements can be supported, but not all by any means. No authoritative professional appeared in the clip, they're reporters, authors of speculative books and the like. And my previous ignorance of other sites was not supported by the facts either, it's just that most of the information available appears to be in German. There's almost certainly a good number of inaccuracies in the history.com video clip.
Regarding the 12,000 year age estimate, it seems reasonable enough, although I'd be very surprised if the human race was quite so advanced at that time.