Posted by rpcman on October 11, 1999 at 11:40:50:
In Reply to: The brain and evolution posted by Tom on October 10, 1999 at 12:13:32:
: If it is true that we use only 10% of our brains, this would seem to contradict the very principle of Darwinian evolution.
Quite the contrary. It would be negative evidence for 'intelligent design' but it wouldn't necessarily be negative evidence for evolution. Large brains could form for several reasons using natural selection (sexual selection, duplicative survival mechanisms, usage prior in evolutionary history, etc.) Things such as pseudogenes and the other items previously mentioned are other characteristics that you would expect with Darwinian evolution but which provide additional negative evidence against an 'intelligent designer'.
However, as I stated in the post you responded to, there is ample evidence that our brains our fully used. Here is another link on the 10% usage myth: