Dr Adequate said:
I've always wondered, when you people talk about "macro-evolution" what do you mean? Do you mean the same thing as "speciation"? If not, what do you mean? I find it in nearly all creationist spam, but without a definition. Is it a secret? Like the definition of "species" I propmted you for? The crickets have been deafening ever since.
I think it is used by them as a Get Out Of Jail Free card. It is played whenever an obvious laboratory or field observation shows evolution happening. At this point the card is played in the attempt to cut this piece of information out from what is defined
a priori by them to be the insoluble conundrum of speciation. At the moment the card is played, I don't think it "means" anything at all in the semantic sense of conveying information it is a tool designed to end the conversation before real thinking might be required.
I, too, would be fascinated to see a creationist's definition of species/kind/macroevolved form because, given a firm definition the counter-examples and refutations of their position can then be produced. I think they may genuinely believe that speciation cannot be explained so use their GOOJF card in the firm conviction that it is legitimate. Where the hypocrisy enters is the point at which they are asked for a properly defined hypothesis which can be tested, when the ignorant are not honest enough to admit they don't know how to answer and the wilfully disingenuous refuse to give a satisfactory answer.
I found the following on my hard drive, I wrote it a couple of years ago and posted it at the BBC Science forums. Reading it again, and though I say so myself, I think it is a good refutation of Creationism drawn from its own words. As with some of the best arguments against homeopathy, often the neatest way to do the job is to take their own views seriously and follow them through to their logical consequences. Both woo medicine and Creationism can be shown quite easily to contradict simple everyday observations of the real world without the need for copious and subtle experimental and observational data.
"We still have no proper answer to the number of "kinds" on the Ark, but the subject is being explored as part of the new pseudoscience of ‘baraminology’ in which the term baramin has been invented to conceal the problematical concept of a "kind". So now the Ark contained a certain number of baramins instead.
Lets us take as a given for now the following estimate of the number of baramins...;
>>How many holobaramins will there be3,000, 5,000, 10,000, 15,000, or more? At this time the best very tentative answer is, "probably in the low thousands"<< From The Creation Research Society. Where "holobaramin" is the particular term for creatures connected by common ancestry. In other words, this is the maximum number of independent roots for all of the current branches of living creatures.
Today we have many millions of separate species. So there has been a radiation in diversity from "the low thousands" to many millions in the last 4500 years. This is a several thousand-fold increase in diversity! Evolutionary theory has no problem with increasing diversity by many-fold, because we have millions of years for it to occur. Creationists require that this happens in 4500 years.
1. This radiation has occurred during historically recorded times! Of this there is no evidence.
2. Creationists complain about the lack of "transitional forms". Never mind that this is a spurious argument when applied to evolution over millions of years, it is certainly a problem if you have species in flux over mere thousands of years. There should be transitional forms everywhere. There are not.
3. What is the alternative? New species would have to spring fully formed in either one or a few steps over a handful of generations. The creationists have a big problem with any mutations, because they keep telling us that they "reduce information content", cannot imagine how they might be advantageous, and keep saying that evolution has a problem by requiring multiple synchronised mutations to occur when a new species forms. Now we have them either having some hugely rapid evolution or new forms springing forth with all their adaptive changes in place at one go, multiplying what they claim to be problems by many orders of magnitude!
So, the creationists require all the same things to happen as do rational scientists, but require that their "microevolution" achieves this from their base stock of Ark "kinds" in 4500 years. Of course it’s actually less time than that because reliable records now extend back several hundred years and none of the required processes have been reported in that time.
Seems to me that "microveolution" beats the Darwin’s evolution by a mile, well by a factor of several thousand! All we need now is the evidence, unless it turns out that the creationists have supplied their own
reductio ad absurdum for us."
Edited for typos