The Intelligent Cell (Origins)

by David Turell , Saturday, December 17, 2011, 15:57 (4513 days ago) @ dhw

I’m not thinking of two common ancestors looking at the same savannah, with one changing and the other staying the same. I’m thinking of one particular area where the forest disappears. ALL our guys and dolls have to get used to savannah life, whereas elsewhere life can continue the same arboreal way. We know it takes two to tango, but with this scenario you have a whole tribe to tango. If epigenetics and Lamarckism can stand up to it, you have all the “ancestors” in this one area needing to develop new skills, from which evolve the anatomical and intellectual changes that ultimately lead to us.

This opinion comes from Stephan, Niles, David H.. It is the punctuated isolation equilibrium theory that fits the huge jumps in Darwinism that don't fit the bearded one's proposal. All the guys have to do is follow the receding forest margins, and not bother to change. Animals usaly follow the path of least resistence.

DAVID: If an open option allows an advantage in complexity, but does not require it, why did it happen? Dumb luck or some push to complexity? I think there is a pushing mechanism and that it will be found in the near future. To be nice, I think your theory is possible, but not reasonable without some pushing somewhere.

The push would be environmental, with change required by natural deforestation. Africa is a vast continent – there is no reason why such an event should not be localized to a single region. It would only need one to start the process. Now perhaps you can be even nicer!

I can be a little naughty at times, but generally I am very nice.You haven't disproved the need for genome guiding pushes!