Evolution is both a theory and a fact. Contrary to the lies Christians love to tell, evolution is not a theory in the everyday sense of a hunch or a best guess, e. g. I have a theory about where the water on the kitchen floor is coming from. Scientists call those hypotheses. Evolution is a theory in the same sense as music theory. There is no doubt about which notes make up a C chord. There is no doubt that halving the length of a string bumps the plucked note up exactly one octave. Similarly there is no doubt that creatures evolved and continue to evolve. Theory, in this sense, means a mathematical model that describes and predicts observed facts. Evolution is also a fact because we have watched it happen in the fossil record, in our DNA, in artificial selection that we use to create domestic plants and animals, and in the way diseases and pests evolve resistance to our measures to eradicate them. There is no evidence for any competing explanation, including creationism. Even Pope Jean Paul conceded evolution was the best scientific explanation. Even when you explain this to a creationist, and you are sure he understands, you will catch him a day later trolling his same old “evolution is just a theory” bit of dissembling. The problem is more dishonesty that ignorance.
~ Roedy (born: 1948-02-04 age: 62)