Roadkill said:
Salman Rushdie, commenting on the Kansas Board of Education's decision to remove evolution from its school curriculm in favour of 'intelligent design':
This decision just doesn't make sense at all, and certainly suggests that where the Kansas board of Education is concerned, "intelligent design" really
is just creationism by the back door.
As far as I can see, what makes sense is to teach the well-documented facts of evolution, and the evidence of the fossil record, and then to point out that there are various theories about why evolution occurred, the most simple of which is the standard darwinian account that it occurred by random accidents, and that in as far as it has directionality the directionality was driven by natural selection within changing environments.
I don't see any good reason other than dogmatism though, to insist that the standard darwinian account is the only theory that can explain the data. To do so seems to me like a simple case of exaggerating what is proved by the data. Philosophically, it seems obvious to me that all that is proved by the fossil record, is that life evolved. It can't prove
why life evolved, because that's a different sort of question. The reason why the default position of scientists is the darwinian one is that science has an inbuilt bias towards excluding teleological or mentalist explanations. Nor does the fossil record tell you anything about the origin of DNA, nor can it show why the universe happens to be made out of the type of things that can turn into DNA.
There's a line of thought I came across recently, which I find quite interesting.
I think it's widely accepted that birds evolved from dinosaurs. This gives rise to the question,- why did the dinosaurs grow wings? Apparently there are fossil records of dinosaurs of intermediate size with wings that flap. But these dinosaurs were far too large to ever be able to fly. But nonetheless, for generations and generations they were busily evolving wings to birdlike proportions, and muscles to flap them despite them not having much obvious use. We can guess that the use they made of them was for display, - and that along with the wings there were feathers, which could be patterned into rich tapestries of colour. Perhaps the purpose of the display was to impress an intruder, or to attract a potential mate, - though from the point of view of effectively dealing with the intruders, I do think that a well muscled and clawed arm would be more effective than a flapping wing.
Let's say for the sake of argument then that the point of large flapping wings with feathers was as a mating display. This then gives rise to the question, but why should these particular dinosaurs find that they were most inclined to mate with dinosaurs with large flapping wings, - why did dinosaurs find large, useless flapping wings sexually attractive? And this is a bit of a mystery, - but then the nature of sexual attraction has always been a bit of a mystery, and yet clearly, it's a driving force in evolution, - look at the peacock -
I think possibly this set of questions might help answer other questions about the evolutionary purpose of conscious minds. If you don't in advance take the dogmatic position of excluding teleological or mentalist explanations- then it's possible to advance the theory that dinosaurs evolved wings because the universal consciousness wanted them to evolve into birds, and that the universal consciousness was able to influence their evolution, because the dinosaurs, having minds that partook of the universal consciousness started to find dinosaurs with beautifully coloured feathered wings, the larger the better, -more attractive than dinosaurs without.
This may sound bizarre, - and of course it's all speculation, - but does anyone have a better one for why dinosaurs should have evolved wings when there was no immediate survival benefit in the wings, other than that the wings evolved as a mating display and that those with better wings were favoured more than those with worse wings. And if you accept the mating display explanation, then, - why? Why were dinosaurs with good wings more attractive than those with less good wings. ?