I think nobody would claim that random genetic drift is capable of producing adaptation, that is to say the illusion of design. Random genetic drift can't produce wings that are good at flying, or eyes that are good at seeing, or legs that are good at running. But random genetic drift probably is very important in driving evolution at the molecular genetic level.
Richard DawkinsYou can never be absolutely certain that anything doesn't exist. But you can show that it's unlikely.
Richard DawkinsWe accept that people are irrational for good Darwinian reasons. But I don't think we should be so pessimistic as to think that therefore we're forever condemned to be irrational.
Richard Dawkins