That's not the way the scientific method works
by
JGC
09/19/2007, 12:38 PM #
“And speaking of evolution, it is approached in much the same way that theology is.”
>>That isn’t the case, unless theology is derived solely from objective observations that are repeatable, reproducible, and independent of the analyst, and unless theological models do not invoke supernatural entities or forces to craft explanations.
“It starts off with a set of assumptions and tries to work out the specifics from there.”
>>Sorry, that’s false. Evolutionary theories, like all scientific theories, derive not from assumptions but from large bodies of objective observations.
“We ASSUME that evolution occurred and change the theory on the specifics every time a new find is made.”
>>We don’t assume evolution occurred. Darwin didn’t assume evolution occurred. You’ve got the process backwards. What Darwin did initially and what we do now is to examine the body of objective evidence (observationally and experimentally collected) regarding existing biodiversity and from that evidence derive an explanation that is comprehensive, tentative and predictive. (I.e., he didn’t assume evolution occurred, he looked at what had occurred and asked “What explains this?”)
“We ASSUME that the levels of Carbon 14 in living things millions of years ago were the same as they are today because today all living things have the same amounts.”
>>No, we don’t. We don’t have to, as we can directly measure the levels of environmental carbon 14 that present in the atmosphere in the past that have been incorporated into datable geologic features. (And note that it is in fact impossible to meaure residual Carbon 14 in samples millions of years old: because of half-life constraints Carbon 14 dating may only be applied to samples less than 50,000 years old. Other radio-dating techniques using isotopes with much longer half-lives are used to date non-organic samples and samples older than 50,000 years.)
“Since nobody was there to observe when the first single cell organisms evolved, and nobody was there to measure levels of carbon 14 in living things a million years ago, we really can't prove our assumptions, yet it is being taught as fact in schools.”
>>Again: if you’re seriously suggesting that kids in schools are being taught that carbon 14 is used to date sample that are millions of years old you didn’t pay attention when the subject was being covered while you were attending school.
“Mind you, I'm not saying that we didn't evolve, I'm just saying that believing in evolution requires some faith.”
>>It isn’t necessary to believe in evolution, however, since confidence in evolutionary theories doesn’t derive from a subjective personal faith that they’re correct, any more than confidence in gravitational attraction or the heliocentric model of the solar system derives from faith. Confidence in all scientific theories derives from their demonstrated ability to comprehensively and predictively explain all observations within their scope.