In a recent interview mathematician Granville Sewell makes the following interesting point:
A typical college physics text I read contains the statement "One of the most remarkable simplifications in physics is that only four distinct forces account for all known phenomena." Most people just haven't ever thought about things in this way, that if you don't believe in intelligent design, you must believe this claim, that the four unintelligent forces of physics caused atoms on Earth to rearrange themselves into nuclear power plants, spaceships and computers. When they do think about it, they may start to see things a little differently. This is part of the "broader view" that is often missed by biologists, but noticed by mathematicians and physicists.
He's right that most people never stop to think about this. Either human minds, libraries, computer software, and jet engines are ultimately the product of an intelligent designer or they're ultimately the product of blind, purposeless forces like gravity, electromagnetism, and the strong and weak nuclear forces.
Why is it somehow more rational to believe the latter than to believe the former? Why is it thought to take more faith to believe the former than to believe the latter? Indeed, it's more than a little ridiculous that people who believe the latter often make fun of those who believe the former.
RLC