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[Ars] Incredible discovery places humans in California 130,000 years ago - Page 4

post #31 of 46
Quote:
Originally Posted by mmonnin View Post

Mars lacks an atmosphere now but didn't. Your solution solves nothing and only adds issues of how the right material got from mars to earth and why didn't it start at both places.

Mars has lacked an atmosphere for billions of years? Earth is 4.7bil years old and has taken much of that time to develop life as we know it. So before that time Mars developed life, lost its atmosphere then transferred it? Your timelines are a joke.

......

Mars lost its atmosphere somewhere around 4 billion years ago. Earth began forming around 4.5 billion years ago, and being very primordial and unstable for life for the first billion or so years - with early bacterial life showing up on Earth around 3.5 billion years ago.

There is around a 500 million to 1 billion year period between Earth being able to sustain life and Mars ejecting rock out due to no atmosphere and larger impacts.

EDIT:

Basically the current belief and understanding is that while it is very possible for life to have successfully made it from Mars to Earth. It isn't nearly as likely for it to have gotten from Earth to Mars, as Earth hasn't ejected nearly as much material into space.

That said, in this Universe there is some small possibility it went the other way as well. Even NASA now takes this into consideration with its missions and the up coming Cassini crash into Saturn, to protect the moons of Saturn.
Edited by PostalTwinkie - 4/27/17 at 12:21pm
    
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post #32 of 46
Quote:
Originally Posted by Nightbird View Post

Interesting, wonder how they went extinct since NA is full of easy to kill animals apparently.

According to the History of the Univerise in 2 hours film...life in the prehistoric America was tough on human survival unlike Africa and Euroasia.
     
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post #33 of 46
History books is fiction and this story only adds to distort the real history of man.
 
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post #34 of 46
What ppl fail to grasp most often, is that when a new discovery is adding to our knowledge, or in this case a speculation without 100% concrete evidence but at the same time plausible (cause you know, humans existed 130,000y ago, they don't place it before the Pleistocene), most likely it is not "flipping science upside down". Just opens another window and perhaps encourages a SLIGHTLY different way of looking at things.

Not a single scientist that championed the migration of humans in the Americas 15,000y ago loses sleep over that, as those evidence are backed up by DNA evidence too, vs the evidence of this - perhaps very significant yet not revolutionary discovery.

There are questions about the current understanding of History raised? Sure.
But it is the equivalent of fragments of evidence suggesting that Abe Lincoln was not born in Kentucky, but otherwise business as usual, yet ppl make it sound like Lincoln is now proven to be the Vampire Hunter, or at least just a likely "because they have been wrong before"...keep it apples to apples gents.
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post #35 of 46
Quote:
Originally Posted by pcfoo View Post

What ppl fail to grasp most often, is that when a new discovery is adding to our knowledge, or in this case a speculation without 100% concrete evidence but at the same time plausible (cause you know, humans existed 130,000y ago, they don't place it before the Pleistocene), most likely it is not "flipping science upside down". Just opens another window and perhaps encourages a SLIGHTLY different way of looking at things.

Not a single scientist that championed the migration of humans in the Americas 15,000y ago loses sleep over that, as those evidence are backed up by DNA evidence too, vs the evidence of this - perhaps very significant yet not revolutionary discovery.

There are questions about the current understanding of History raised? Sure.
But it is the equivalent of fragments of evidence suggesting that Abe Lincoln was not born in Kentucky, but otherwise business as usual, yet ppl make it sound like Lincoln is now proven to be the Vampire Hunter, or at least just a likely "because they have been wrong before"...keep it apples to apples gents.

.....

Wait, are you telling me Lincoln wasn't a Vampire Hunter?
    
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post #36 of 46
^ shhhhhh
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post #37 of 46
Quote:
Originally Posted by Zen00 View Post

This was kind of in the time before the idea of storing food for the winter became a big thing

Storing food long predates humanity.
Quote:
Originally Posted by 7akata View Post

This is the part that concerns me. It seems like this whole 'settle science dont question it' deal might be getting out of hand recently.


Problem with that cartoon was that no non-helocentric view ever had any scientific basis. Nothing explains the motions of the planets relative to Earth and the Sun, other than all of it orbiting the Sun.

Scientific consensus can be incomplete or erroneous from time to time, but to ignore it in favor of wishful thinking, illogical conspiracy theories, outmoded tradition, or one's baseless gut feelings about the truthiness of a statement is still folly.
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post #38 of 46
Quote:
Originally Posted by Zen00 View Post

Did you not read the article where they give plain proof of human tool use?

yep.

And as I said before the "photos" of those tools are of "rocks" which may or may not have been formed naturally; but I'll bow to the experts on this one, and lets just say they're tools.

Listen, there are several "pre" homo sapien ancestors which were alive and using tools 150,000 years ago which might have made that site. It does not have to be "homo-sapien", in fact Homo-Erectus (for example) was alive as recently as 70,000 years ago, and that is a species of pre-man which we know used stone tools AND fire. Homo sapiens, probably evolved around 200,000-120,000 years ago (depending on who you ask), and left africa around 100,000-80,000 years ago. The time table doesn't really match up, so the claim this is homo sapien work is a bit of a stretch (the genetic record of homo sapien makes dating their departure from africa pretty easy to do, thanks in no small part to the unusually uniform genetic makeup of homo sapiens (which carries its own implications for our history). An ancient ancestor, I can believe, I mean Homo Erectus was around for a + million years in one state of evolution or another, with fossils found outside of africa, throughout asia, india and europe, it wouldn't be too surprising to learn they made it over to NA.
Edited by azanimefan - 4/27/17 at 6:15pm
 
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post #39 of 46
Quote:
Originally Posted by Zen00 View Post

Incredible discovery places humans in California 130,000 years ago


What? What! This is amazing! Completely rewriting the history of human migration! However it should be pointed out that this group is thought to have gone "locally extinct" before the ancestors of the native americans showed up, so their genetic record was not passed on.

It's pretty neat stuff and they took 20 years validating their find before publishing, amazing work! That's real science folks, spending 20 years to verify that something works before publishing it, as opposed to some crackpots and their "free energy" machines.....
Unfortunately, long term grant is going extinct. That's why there are more researchers with short term grants (less than 3 years) and their publication popping out. Not to mention universities mandating Master and PhD student publishes before granting degree. More research papers pop out every year by desperate students that wants to graduate.
post #40 of 46
http://humanorigins.si.edu/research/asian-research-projects/earliest-humans-china
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