> There are plenty of ancient artifacts and ruins
> that can't be accounted for by known bones.
> Who did Stonehenge?
> Who did Baalbek?
> Who did Gobekli?
> Who did all that fancy stonework in the Andes?
> What else lies deep underground that we haven't
> yet discovered as we continue to scratch the
> The list goes on and on. I'm quite sure we don't
> have evidence of every intelligent population that
> lived on this planet. We mostly only have evidence
> of the most recent cultures whose remains are
> still on the surface of the Earth. We've only
> recovered a handful of human remains from Cro
> Magnon, but that doesn't mean only a handful of
> them roamed the Earth. And the farther back you
> go, the more scarce the evidence becomes.
> If a harsh global catastrophe strikes the earth, I
> have no problem with the possibility that
> regardless how "advanced" civilization might be
> during peaceful times, the few who survive could
> very well wind up living in caves, wearing furs,
> and trying to figure out how to start a fire all
> over again using rocks and twigs.
> This is not farfetched. It's what would happen if
> only a few survived to rebuild civilization from
> scratch. And as far as we know, it could have
> happened several times throughout
> many millennia.
Could not have said it better myself.