Simple, he is a well-known scientist.
I've never heard that a sane scientist says "I don't believe in
the theory of evolution", but that most(99.9...%) of biologists
research under the paradigm of evolution.
I know from my friends whose major are biology that Dockins is
a extreme reductionist (<-- my favorite philosophical position)
and when I read his books, I noticed my friends didn't tell a lie.
Dockins had a kindness to provide me with a lot of models to
simulate the evolution ('Selfish Gene' also has many models).
All models can be simulated in workstation.
As I know, KennyG is a computer scientist.
Please try his model, and please let me know whether he is
wrong or not.