RE: The Out of Africa Crowd May Shit A Brick
January 1, 2011 at 5:10 pm
(This post was last modified: January 1, 2011 at 6:44 pm by Anomalocaris.)
1. There is no reason i know of to suppose the Nile was continuously a perennial swift flowing river impassible to wadders or primitive swimmers with primitive swimming aids like innflated animal bladders during the entire late pleistecene period. If the river nearly ran dry during just one particular dry season during the last 100000 years, that's enough.
2. Sahara is just an eye catching manifestation of the rainfall patterns throughout tropical and subtropical Africa. As change sahara so change much of the rest of Africa. So changes in sahara could mean large scale climate and ecological upheaval in tanzania and the afar triangle, sarengeti, etc. So change in sahara can be used to explain acute migration pressure on people living outside sahara.
3. Modern people who don't move are farmers. Farmers are by necessity culturally sedentary Their disinclination to move can't be projected onto hunter gatherers 60000 years ago, when ooa migration is thought to have happened. Hunter gatherer cultures are by necessity mobile.
4. The OOA hypothesis call for only one or small Number of small bands of HSS to make it out of Africa, not mass migration requiring similar demonstration of mobility for large groups. That makes it naturally inappropriate to use typical behavior of large groups of people, like those who didn't move in response to encroaching sahara, to exclude certain behavior on the part of Ooa sized groups.
2. Sahara is just an eye catching manifestation of the rainfall patterns throughout tropical and subtropical Africa. As change sahara so change much of the rest of Africa. So changes in sahara could mean large scale climate and ecological upheaval in tanzania and the afar triangle, sarengeti, etc. So change in sahara can be used to explain acute migration pressure on people living outside sahara.
3. Modern people who don't move are farmers. Farmers are by necessity culturally sedentary Their disinclination to move can't be projected onto hunter gatherers 60000 years ago, when ooa migration is thought to have happened. Hunter gatherer cultures are by necessity mobile.
4. The OOA hypothesis call for only one or small Number of small bands of HSS to make it out of Africa, not mass migration requiring similar demonstration of mobility for large groups. That makes it naturally inappropriate to use typical behavior of large groups of people, like those who didn't move in response to encroaching sahara, to exclude certain behavior on the part of Ooa sized groups.
