Originally posted by Halitose
Observation. Scientists have been breeding fruit flies and bacteria for over a hundred years. They have never not produced variations of themselves -- nothing even closely resembling a new organism has ever emerged.
Oh don't tell me, I know. We haven't been observing them long enough. Given enough time the fruit fly will evolve into bee and the b ...[text shortened]... ile. Perhaps you would desist from glibly claiming everything you believe in as fact.
No, no, no no, no! My "fact" does not rely on fossil evidence. I told you it was deductively factual (as opposed to inductively). I'll demonstrate:
1) Given something that will vary (i.e. an organism)
2) Given a selective pressure which can determine which variation is best (i.e. natural selection)
3) From 1) and 2) macroevolution will occur.
Macroevolution is just an accumulation of micrevolutions. Your observation is hardly compelling since, there may be no "selective pressure" for any macro-variations in the fruit flies (and most of the microevolutions that have been recorded were not to the flies reproductive benefit).
In rejecting macroevolution you just ignorantly propound a distorted creationist argument (albeit a weak one). Even ID'ers accepted evolution. They just objected to the improbability.
Oh by the way, how did Darwin interpret fossil evolution according to evolution if he wasn't aware of evolution at the time? How did he escapte this circular argument?