Please consider registering
guest

sp_LogInOut Log In sp_Registration Register

Register | Lost password?
Advanced Search

— Forum Scope —




— Match —





— Forum Options —





Minimum search word length is 3 characters - maximum search word length is 84 characters

sp_Feed Topic RSS sp_TopicIcon
Big Brains Require An Explanation, Part I: Why Did Humans Become Smarter, Not Just More Numerous?
sp_BlogLink Read the original blog post
March 8, 2012
5:14 pm
Avatar
First-Eater
Forum Posts: 2045
Member Since:
February 22, 2010
sp_UserOfflineSmall Offline

Elton:

If you can point to reliable evidence of human occupation of the Americas at 250 KYA, you'll overturn the entire field of archaeology.  Even the most aggressive interpretation of sites like Pedra Furada only goes back perhaps 48 KYA -- and those interpretations are both doubtful and hotly contested.  The earliest uncontested occupation of the Americas is about 14,800 BP at Monte Verde.

Frankly, I find assertions of high-tech in layers where people are chipping stone points to be utter bunk.  All the "mysteries" of how the pyramids or Stonehenge were built turn out to be lots and lots of people rolling things around on logs and understanding the principle of leverage.  My mind isn't closed -- but there's a very large burden of proof to meet.

JS

March 21, 2012
8:11 am
Kenneth Shonk
Guest

Maybe as global warming represents anther oscillaction, it will increase selection pressure to take humans to the next stage.

March 21, 2012
3:17 pm
Avatar
First-Eater
Forum Posts: 2045
Member Since:
February 22, 2010
sp_UserOfflineSmall Offline

Kenneth:

That's a specific case of the general problem, which is that humans are changing our environment much more quickly than we can adapt to it.

JS

Forum Timezone: America/Los_Angeles

Most Users Ever Online: 183

Currently Online:
3 Guest(s)

Currently Browsing this Page:
1 Guest(s)

Member Stats:

Guest Posters: 1760

Members: 5332

Moderators: 0

Admins: 1

Forum Stats:

Groups: 1

Forums: 2

Topics: 250

Posts: 7098

Administrators: J. Stanton: 2045