Ophiolite said:
GeoffP:
My initial point was, and remains, there is a fact of evolution, there is currently one dominant theory that seeks to explain this fact.
I'm glad you accept the theory, although you really should also be accepting the fact.
Since I raised that point you have introduced a number of side arguments in which you have assigned, implicitly or explicitly, to me opinions which I do not hold. This is either the act of an idiot, or someone who is intellectually dishonest. You don't, despite many of your views, appear to be a complete idiot, so I shall assume you are just a liar. Please stop that.
Those opinions are essentially implicit in your proposition that evolution is merely a theory. You might well be offended at my humourous side-lines, or you might not, but your immediate engaging in ad hominem does not predispose me to treat fairly with you. I will observe and see.
You ask what sort of evidence could overturn the current theory of evolution. I realise that you really are serious with such a question. As I have previously pointed out, if we knew the sort of data that might overturn it, and the probability of such data existing, we could be searching for it now.
Then I expect a fine Kuhnian such as yourself would be busily out rejecting received knowledge and busily taking it down. Come on: there are several ways in which Mendelian evolution might easily be refuted. If you cannot think of them then I fail to see why I should waste my time illustrating them to you. I do not exaggerate when I say they should be immediately obvious.
[You really shoud read Khun and try this time to understand what he is saying. Here is a small tip. Get the grown up version of The Structure of Scientific Revolutions - the one without the drawings. It's a lot less than four hundred pages.]
His last book is 368 pages. Not reading it?
Now despite the fact that you are still failing utterly to address the only point I consider important in this (fact v. theory), and despite the foregoing dismissal of the opportunity to predict the kind or source of evidence that could alter our theory, I shall offer an example: epigenetics. Since you are active in the field of gene theory, whereas I am a humble, uneducated salesperson and teacher, you will be able to fill in the blanks and implications of that word for this discussion.
Good God, he's a Waddingtonian.
Well, in the classical Aristotelian sense (adopted by more than a few lunkheads I know) epigenetics is the development of formed genomic matter from the unformed, and, thus, is essentially bullshit. (Oh- and no "origin of life"-based responses, please - the physical conditions aren't at all the same and you know it.)
If, however, you are referring more to changes in phenotype without corresponding change in genotype, then we are essentially discussing reaction norms, in which I am something of a "believer".
I have no doubt, however, that your Kuhnian doctrinialism will immediately seek to cure me of my "received knowledge" and develop some even-newer, more radical theory that explains the universe, the cosmos, and everything. Or wait: is my partial support of GxE "received knowledge" or "Kuhnian reaction"? Would I be not reacting by believing in it, or reacting by not believing in it, which you are presumably presenting as a Kuhnian reaction? What should I be rebelling against? So confused.
Epigenetics in the GxE sense is divisible into two major categories, those being i) that of genetic variance for the liability to expression, which is neo-selectionist and again a core expression of - what's that now? Mendelian Law - or ii) a developmental alteration provoked by mutational or environmental insult, resulting in an altered (potentially nonadaptive) phenotypic state and in which allele frequency changes follow.
You will note that neither of the above refutes the core theory. I also refer you to Zhang and Hill 2004 who engage in a fascinating concept of increased, reactive phenotypic variance within genotype classes - wherein not only means but intraclass
variance is a topical feature of - wait for it! - alleles (and epistatic classes). As such, that is also not a refutation of allelic theory. I don't believe even the most extreme Waddingtonian (who, incidentally, I have great respect for) would interpret epigenetics as being completely removed from allelic theory, and if they would they should probably be shot.
Oh, not
really. But if your philosophical navel-gazing is trying to provoke a backslide to Lamarckianism, then do bugger off. We have enough problems without that nonsense, interesting and well-intentioned though it was.
Please feel free to pepper (or even Popper) your response with convoluted insults and trite put downs. It is evident that you majored in arrogance and missed out entirely on semantics. Doubtless this prevents you from being well-meaning.
Not at all. It is your real forté that prevents me from being well-meaning: ad hominem. My quite innocuous proposition spurred a vicious personal attack; and from an evolutionist, no less. I can only presume you'd been waiting a while for it, having seized so strongly on its use. Is this an emergent property of your personality?
Again - not seeing why I should treat kindly with you, given your history in this debate.
And I only minored in Arrogance.
Mountainhare: please don't debase your otherwise solid arguments with your anti-Israeli propoganda.
Oh, his appreciation of Jewish people goes far beyond that, I assure you.
Leaving you and Eva to your mutual contemplation, I remain,
Geoff