Biologist PZ Myers sets out to prove that there is no purpose associated with evolution.
I decided that what I wanted to make clear is that the origin of many fundamental traits of the nervous system is by way of chance and historical constraints
The word “purpose” is entirely inappropriate. Richard Dawkins has tried to deal with it by inventing a new term for the kind of purpose you’re talking about, but I think we’re better served by trying to cut that misconception off at the knees. No, ankles. No…we need to blow it off its feet and scour the footprints from the floorboards.
So how does Myers take teleology and “blow it off its feet and scour the footprints from the floorboards?”
He points to three places where exaptation played a key role in the evolution of neurons. Exaptation? Y’know, the term that was designed to replace the term…. preadaptation.
In other words, Myers “blows” away teleology by providing three features of the eukaryotic cell plan that facilitated the emergence of neurons. Apparently, he believes that if there was any purpose associated with evolution, it would be devoid of preadaptations that might facilitate subsequent evolution.
Er, I think not…..