Proponents of "Intelligent Design" try to seem reasonable, saying "oh,
Evolution is just a theory, so let's give equal weight to another
theory, Intelligent Design". But we could come up with lots of other possible
theories. For example: (1) that life on Earth was created by aliens who are still here and
controlling us, or (2) that the non-living parts of the world were
created by intelligence and life is an unintended parasite. Both of these
additional theories have just as much evidence in their favor (zero) as
"Intelligent Design" does, so why shouldn't we present them also ? I'm sure
we could come up with another dozen theories. But so far Evolution is the
theory that has the facts supporting it. And it has far more facts than
just the fossil record supporting it: commonality and increasing complexity of DNA and cellular structure across
animals from viruses and bacteria up to humans, for example. Continuing evolution in modern times,
such as the appearance of antibiotic-resistant germs.
A few points summarized from terrific article by H. Allen Orr in 5/30/2005 issue of The New Yorker magazine:
- Biology is full of examples of parts/proteins/structures that have been re-used
or modified to serve other purposes, sometimes leaving behind vestigial or degenerate pieces or duplicate or
competing mechanisms. This is far more consistent with evolution than some sort of direct design.
- Just because biologists can not explain every detail of some organism or part or how or in what order it
evolved does not mean that evolution is wrong. Can we explain every detail of how some city grew,
or some war started, well after the fact ?
- Intelligent Design advocates are completely focused on tearing down evolution, instead of
building a positive case in favor of Intelligent Design. There is no positive case,
except religious faith.
- Intelligent Design is a political movement masquerading as a scientific theory.
What other "theory" has laws forcing its teaching ?
What other "theory" produces no avenues for experimentation or confirmation or contradiction ?
- "Evolution" does not equal "atheism". Perhaps God decided to use evolution to create everything.
Many scientists who accept evolution believe in God.
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A few points from article by Neil deGrasse Tyson in 11/2005 issue of Natural History magazine:
- The human body has lots of examples of bad design.
Breathing and eating through the same orifice is a bad design: lots of
people choke to death every year because of it. Having the reproductive
and excretory organs share a lot of plumbing is a questionable idea.
Our backs are not designed well for our upright posture.
- Small design additions could have made the human body far better: the ability
to see many more wavelengths of light, the addition of gills so we wouldn't drown
and could live underwater, feedback that could tell us about the health
of our arteries and heart and blood pressure and so on.
- Embracing ignorance is fundamental to the philosophy of intelligent design:
- I don't know what this is.
- I don't know how it works.
- It's too complicated for me to figure out.
- It's too complicated for any human being to figure out.
- So it must be the product of a higher intelligence.
What do you do with that line of reasoning ? Do you just cede the solving
of problems to someone smarter than you, someone who's not even human ?
Do you tell students to pursue only questions with easy answers ?
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From a show on NPR 2/2007:
Apparently, Intelligent Design proponents have been
forced to acknowledge that evolution occurs in just about every species
except the human species. They still maintain it doesn't occur there.
[But since humans have lots of symbiosis in them, such as the bacteria in the
intestines, and our cell structures show direct lineage from other organisms,
this stance isn't very tenable.]
Botanical Society of America's Statement on Evolution
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