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interests / sci.anthropology.paleo / erectus and the Titanic

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o erectus and the TitanicI Envy JTEM

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erectus and the Titanic

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Subject: erectus and the Titanic
From: jte...@gmail.com (I Envy JTEM)
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 by: I Envy JTEM - Wed, 6 Apr 2022 19:32 UTC

Everyone alive today could be -- meaning, it's theoretically
possible -- descended from a passenger on the Titanic.

The funny thing is, if our species lasts long enough, if
people travel and intermarry enough or any at all, eventually
everyone on the planet WILL be descended from a passenger
onboard the titanic, or nobody will.

Kidnap a statistician and maybe a geneticist, tie them up &
force them to explain all this if you don't believe me. But,
given a enough time, given the spread of humans,
inter marrying (etc), eventually either everyone on the planet
will have a titanic passenger as an ancestor or nobody will.

Now what does this have to do with erectus?

Oh. I left out one little detail:

We could only be descended from SURVIVORS! We'd be
descended from people who were on the Titanic and
survived.

NOW do you see what this has to do with erectus?

The point is, there were many different POPULATIONS
of humans, but we aren't descended from all of them.

Multi regionalism/Regional continuity is real. It's
confirmed to some level. In places like Australia it
seems confirmed to a very great level! And none of
this is in conflict with Aquatic Ape.

Humans spread out. We know this. Humans were
everywhere from Australia to Africa and everywhere
in between. Humans moved inland. We know this to
be true. Humans formed distinct populations,
Neanderthals for example...

We had Aquatic Ape or Waterside. Periodically
populations left the coast, pushed inland and adapted
to the new environments they found. They were driven
off the shore by conflict. They were driven off the
shore by natural disasters. They were driven off the
shore by disease. They were driven off the shore by
the climate cycle -- dropping sea levels drawing them
in, rising sea levels swallowing up their habitat...

So there were all these different populations, but we're
not descended from all of them. In fact, the only
population that the entire human race can all claim as
shared ancestry is the Aquatic/Waterside population.

It's sort of a "Last man standing" kind of thing, which is
why the Titanic analogy works.

There were a number of catastrophic events. Massive,
completely off the charts type events. If Yellowstone
explodes tomorrow we're looking at a conservatively
estimated energy release equivalent to 100,000 nuclear
weapons. Toba did explode a little over 70k years ago,
only it was about 2.5x larger than Yellowstone. It was
THAT big.

A little over 40,000 years ago there was volcanic
activity that just about stopped all the plants in Europe
from pollenating for about a year. What do you think
THAT did to the last of the Neanderthals?

REMINDER: It was a much smaller event than Toba!

about 800,000 years ago southest Asia/Oceana was
ground-zero for one or more asteroid impacts. And
not a little one. Not as large as the one that wiped out
the dinosaurs but large enough to end civilization
today.

These events, and the glacial/interglacial cycle, were
all filters. They wiped out entire populations, maybe
entire species. And we are descended from their
survivors.

Where does that leave us?

On a beach. At or near the equator, most likely, but on
a beach.

The Aquatic/Waterside/littoral population was in the
best position to survive. They just plain were. So even
if 90 or 99% of the waterside population had eventually
split off, moved inland, our common ancestors were
still that waterside group. Because they lived. They were
the ones in the best position to survive and leave
descendents.

-- --

https://jtem.tumblr.com/post/680747811703341056

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