Quote:
Originally Posted by kokiri
Obviously it fits most/all the evidence, that's fine and dandy. But so did the theory that the sun was driven around by some guy in a chariot until people got telescopes good enough to take a closer look.
A really good scientific theory is disprovable, in the sense that you can design an experiment and test the predictions of the theory. AFAICS, the best you can do with evolution is sit around for 10 million years and see if we grow wings. The bacteria malarky is obviously much better, from this pov.
Well, the thing is, you can only falsify theories in the sense that they are forward-looking. You can falsify the theory that light is composed of photons, insofar as it predicts things about the behavior of light in the future. It is impossible to falsify the theory that when I turned on my bedroom light this morning, the light it emitted was composed of photons. How could I do it? That particular light existed only in the past. But no one complains about the "theory of photons" being bad science.
Likewise, the notion that organisms evolve through natural selection and that new species can be created through that mechanism is well-supported, as a general principle. The specific instance of evolution that generated the human species is naturally unfalsifiable, because it's in the past. But if you accept the notion that human evolution is not scientifically proven, you basically have to abandon any kind of scientific understanding of any process that you are not actually experimenting on at that point.
(That's disregarding predictions about the fossil record, which could be quasi-forward-looking, but there are some limitations there.)