Quote:
Originally Posted by RWebb
correct as far as it goes; your mistake is in thinking that evolution is a "theory"
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This, from Wiki, might help him:
"The statement "evolution is both a theory and a fact" is often seen in biological literature. Evolution is a "theory" in the scientific sense of the term "theory"; it is an established scientific model that explains observations and makes predictions through mechanisms such as natural selection.
When scientists say "evolution is a fact", they are using one of two meanings of the word "fact". One meaning is empirical: evolution can be observed through changes in allele frequencies or traits of a population over successive generations.
Another way "fact" is used is to refer to a certain kind of theory, one that has been so powerful and productive for such a long time that it is universally accepted by scientists. When scientists say evolution is a fact in this sense, they mean it is a fact that all living organisms have descended from a common ancestor (or ancestral gene pool) even though this cannot be directly observed. This implies more tangibly that it is a fact that humans share a common ancestor with other primates."