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Apologetics

Darwin And Evolution

From: “Chris Ho-Stuart”

Newsgroups: aus.religion.christian

Subject: Re: faith (was creationism)

> Gladys Swager wrote:

> [snip]

> > Charles Darwin did not originate the idea of Evolution. The idea had

> > been been discussed among philosophers and intellectuals for up to two

> > thousand years, according to the information I have.

Response. (Original and response fairly obvious in the rest):

> That is correct. What Darwin did was to propose a mechanism

> for evolution, and backed up both the phenomenon of evolution

> and his particular model (natural selection) with a massive

> amount of data.

>

> The evidential problems with special creation were apparent

> long before Darwin, and there was plenty of evidence for

> evolution — which is why it had been discussed long before.

> But the problem was… how could it occur?

>

> What changed with Darwin’s publication of “Origins” was the

> arrival of a theory or model able to explain the observed

> facts of living diversity and relationships, and account for

> how evolution occurs; and also a thorough and comprehensive

> argument based on many lines of evidence.

>

> Subsequent work has confirmed and extended those insights,

> to the point where evolution is now as solidly confirmed as

> any scientific theory can be. The only remaining objection

> is religiously motivated, and has nothing to do with any

> empirical evidence.

>

> There are many outstanding questions, of course. Do not imagine

> that scientists think they have all the answers nicely wrapped

> up! But creationists are cut off entirely from the active

> scientific ferment and debate in biology, by their commitment

> to medieval views, already solidly disproved long before Darwin

> came along.

>

> > What Darwin saw in the Galapagos Islands were

> > changes in finches and tortoises due to environmental

> > circumstances.

>

> Actually, we can be much more specific and accurate about what

> Darwin saw. Credit here should be given to other scientists

> as well, in particular John Gould, who took charge of Darwin’s

> bird collections after his return to England, and first pointed

> out, in 1837, that all the Galapagos birds were actually

> closely related finches. Darwin had originally thought his

> collection was much more diverse, including “wrens, gross-beaks

> and blackbirds”.

>

> When Gould pointed out that Darwin had actually collected 13

> different species of finch, Darwin immediately recognized the

> implications…

> “Seeing this gradation and diversity of structure in one

> small, intimately related group of birds, one might really

> fancy that from an original paucity of birds in this

> archipelago, one species has been taken and modified for

> different ends.”

>

> See

> <http://www.txtwriter.com/Backgrounders/Evolution/EVpage05.html>

>

> The point is that this inference shattered the alternative to

> evolution, which was fixity of species. Darwin recognized that

> the finches were all closely related, and deduced that they were

> all descended from some small original founder population, which

> subsequently diversified in different species.

>

> The scientific evidence is that the finches have diverged from

> about 570,000 thousand years.

> “Genetic Variability and Differentiation in the Galapagos Finches”

> Yang, SY and Patton JL

> Auk 98 (1981)

> This is very recent, in geological time, but enormously too ancient

> for a young earth creationist model.

>

> Creationist handling of this phenomenon is not consistent. On

> the one hand, they can’t admit evolution as understood by

> scientists. On the other hand, it is plain as a pikestaff that

> the Galapagos finches are closely related, and have diversified

> on the islands.

>

> The usual creationist approach is to insist that the

> finches represent “microevolution”, which is different from

> “macroevolution”. The problem is that the diversification of

> the finches is indeed a diversification into fourteen distinct

> species with their own special adaptions. This is macroevolution;

> and once that amount of diversification is accepted there is no

> basis for imputing some bound on how much further they could

> diversify over hundreds of millions of years. The finches do

> represent macroevolution.

>

> The other absurdity is that a young earth creationist model

> would require these finches to have diversified from the common

> stock since their release from Noah’s Ark about six thousand years

> ago or so. That is an enormously rapid bit of evolution — far

> more radical that what is proposed by evolutionists!

>

> > Scientific Creationists say that when he extrapolated

> > from those animals to the whole of nature that he made a

> > mistake. That mistake has been perpetuated by those who saw

> > his theory as the means to take God out of their thinking

> > and their lives.

>

> I still think that the creationists must take a large part

> of the responsibility for fostering a chasm between science

> and Christianity. It is the creationists, far more than the

> evolutionists, who have insisted that God cannot have a

> part in evolution. The plain witness of the natural world

> is evolution, and it is the creationists who are most

> emphatic that God has no part of that.

>

> > In so doing, they have not given God the the praise and honour

> > due because of the wonders of His creation. (I am aware that

> > some do not like the masculine ‘he’ when speaking of God,

> > but there is no other suitable pronoun in English).

>

> Whether God given praise and honour has to do with whether

> or not you believe God exists. This is NOT answered either

> one way or the other by evolution.

>

> > I posed the issue of a younger earth that is not acceptable to

> > evolutionists.

>

> The fact that the earth is way older than you can admit

> was established long before Darwin and the adoption of

> evolution by the scientific community.

>

> > One reference is to the number of Aborigines in Australia in

> > 1788. I have calculated that if only 10 indigineous persons

> > were in Auatralia about 1 200 BC – about 3 000 years before

> > 1788 – and the population doubled every 200 years then in

> > that time there would be about 3 000 Aborigines that has

> > been estimated and recorded in some texts to have been in

> > Australia when the English settlement began.

>

> I think you mean about 300,000 aborigines. This number is

> widely reported. It drives from estimates made in the early

> nineteenth century, and it is not a reliable figure. But I

> am willing to accept it for the sake of argument.

>

> The fact is that population levels are pretty much useless

> for determining the length of occupation. Populations can

> grow extremely quickly, and crash even faster. The classic

> creationist strawman of a nice smooth population growth

> extrapolated for thousands of years is irrelevant.

>

> We determine how long people have lived somewhere by dating

> remains; and never by working back from a current population.

> The Aborigines have been in Australia at least 40,000 years,

> and there is no conflict at all between this and any population

> level.

>

> Recall… your own creationist model has the entire world at

> the time of Christ being populated from 8 individuals over

> less than 3000 years. That is several hundred million people.

> So if you were consistent, you should expect at least

> several hundred million Aborigines in 4000 years. But of

> course, Australia could not support that many people. So it

> had a smaller population, and it would have a smaller

> population even given a million years of occupation.

>

> It is a common creationist lie that “evolutionary” science

> predicts population levels inconsistent with observation.

>

> I do call this a lie. Gladys is the victim, not the originator.

> There is no reason to doubt Gladys’ honesty. But I wish

> she would GIVE A REFERENCE to where she hears this stuff.

>

> In real science, a major clue to population levels is simply

> carrying capacity.

>

> A good reference for a rational consideration of Aboriginal

> occupation of Australia is

> “Economics and the Dreamtime. A hypothetical history”

> by N. G. Butlin, Cambridge Uni Press, 1993.

> As you can tell from the title, this makes considerable

> focus on the kinds of basic economic forces which lead

> people to migrate, occupy and populate a region.

>

> There is another point…. population levels are useless as

> a guide for how long people have been around. But genetic

> diversity is another matter. The fact is that existing human

> diversity is too great to have arisen over 10,000 years. So

> humans have existed as a species for significantly longer than

> this; and cannot be descended exclusively from a few survivors

> of a geologically recent flood.

>

> > Some statistics appear to support an older universe – others a younger

> > universe. What has to be done is to work out the reasons for these

> > differences.

>

> No. What has do be done is for

> –> YOU TO GIVE SOME REFERENCE FOR YOUR CLAIMS <-- >

> WHAT statistics support a young universe?

>

> As far as I know, there are no statistics at all which

> support a young universe. I am quite well informed about

> creationist arguments. Mostly, it attempts to refute the

> abundant evidence for an old universe (badly, I might add).

>

> But evidence FOR a young universe? (Younger than ten thousand

> years.) There is no such “statistic” or evidence. The various

> arguments which purport to be “for” a young universe are

> invariably completely nonsensical, and can easily be shown

> to be nonsense. I invite you, or anyone, to present one of

> these line of evidence. If you are not able to do so, you

> have no business making the claim that they exist. And if you

> are not willing to put up the claims for examination, then the

> comments about “needing to work out the reasons for differences”

> become hypocrisy. You are a better person than that. So please,

> take the risk. Tell me what statistics you mean above.

>

> And welcome back! I hope you had a good break away from the

> Internet. I did.

>

> Best wishes — Chris


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