Here's another question: Why are evolutionists so afraid of Intelligent Design being taught alongside evolution in school? Offer out the two viewpoints and have the students debate the merits of both sides. Surely the one with the most merit will win out? The truth has nothing to fear-if evolution is the truth as you claim, then let it stand on its merits.
I do teach about something a little bit like intelligent design--in philosophy class when we do arguments for and against God's existence. (The original philosophical intelligent design arguments go back to Aquinas in the 1200s and William Paley in the 1800s. And as a philosophical argument, Palely's argument is open to serious objections.) I have no problem with this being taught in philosophy class--I teach it myself! But I do not see how the view can be said to count as science since some of its proponents admit that it can't be checked by experimental evidence and it fails to meet many of the criteria philosophers of science use to demarcate science and non-science:
* Consistent
* Parsimonious (sparing in its proposed entities or explanations, see Occam's Razor)
* Useful (describes and explains observed phenomena, and can be used predictively)
* Empirically testable and falsifiable (see Falsifiability)
* Based on multiple observations, often in the form of controlled, repeated experiments
* Correctable and dynamic (modified in the light of observations that do not support it)
* Progressive (refines previous theories)
* Provisional or tentative (is open to experimental checking, and does not assert certainty)
Also, I've never quite understood how the intelligent design view is supposed to be presented. Who is this intelligent designer after all--how is she/he/it to be characterized? Surely there is no reason to suppose if there is an intelligent designer it is anything like the Judeo-Christian God or is a supernatural being at all. (Indeed, this in itself presents a puzzle. How can science tell us anything about that which is
supernatural?) It could be the flying spaghetti monster. It could be aliens from another universe. It could be an all-powerful evil demon.
Do all of those possibilities have to be brought up and explored in class? (Would anybody be happy with their kid coming home and saying "My biology teacher told us how people came to exist today--the flying spaghetti monster aliens designed the universe and all the natural forces that led to our existence?) What about all of the philosophical arguments that demonstrate that the existence of a higher being is unlikely if not impossible--must they be talked about in biology class? Surely we can't go telling kids that maybe an evil demon created the universe without also giving them all of the counter evidence against the possibility right? But the counter-evidence is not empirical but philosophical--so now it looks like biology class is becoming philosophy class.
And where do we draw the line if we let in intelligent design. If it is allowed to be taught
as science in science class as science, then what about other views that some people have about science? Some scientists don't believe that HIV causes AIDS. Should we teach that as an alternative to the accepted scientific view that HIV is the cause of AIDS? If kids take a psychology class, does the course have to give equal time to the scientology view that psychology/psychiatry is quackery?