popper, deutsch, dawkins and darwin
"hibbsa" <hibbsa-/[email protected]> Sat, 23 Feb 2013 02:47:51 -0000
| Newsgroups | gmane.science.physics.fabric-of-reality |
|---|---|
| Message-ID | <[email protected]> |
Hi DD - I was wondering...why did you list Dawkins as one of your four strands? I wouldn't say he's a historically important figure in Science, though certainly he's a v.significant contemporary of yours. But he hasn't produced important theories, or dramatically advanced any that are pre-existing, or has he? He wrote a landmark popular science book about the gene-centric view, and gave it the 'selfish gene' label, but he was only writing about the gene-centric view, he didn't invent it. He did introduce the idea of memes, and that was his idea, so perhaps you elevated him because of that. But that would mean Darwinian Evolution - Evolution - wasn't one of the strands at all. Or, if Dawkins was meant to represent Darwinism in its corrected 'New Synthesis' form, then do you still stand by that judgement call, or in hindsight would you now say the fourth strand is the modern manifestation of Darwin's idea? On the subject of Darwin's Idea, now turning to Popper. He - Popper - surely is a very significant historical figure who contributed a great deal of original work. Those volumes of brilliance are all his. But his Big Idea...the simple concept that glues all of his theories together and makes the body of work profound - is the same as Darwin's Idea, or do you think not? I am interested to know your reasoning, and in the meantime will advance my own. We're talking about Darwin's natural selection. The way I see it, the argument favouring an independent discovery by Popper, would be that he - Popper - does define the components in a completely different way, and as such the 'mechanism' he ends up with is different...one difference being it is no longer 'natural' selection. And since Darwin's mechanism definitively is 'natural selection' all of this would suggest Popper's discovery was independnet and his own. On the face of things, it does seem like a compelling line of argument. But the above argument, and I think probably all possible variations of the argument, really is totally misconceived and mistaken. The reason is not because there is anything wrong with the reasoning itself. Nor is it because any of the assertions within the reasoning are wrong, or innaccurate. Popper did add originality in the way he defined those components, and the resulting mechanism is clearly radically different. It could even be that Popper's mechanism sits above Darwin's where 'natural selection' is a sort of special case. All of this can wholeheartedly be accepted in the strongest possible terms, and it won't make a jot of difference. Because the misconception that falsifies the argument that Popper's idea was original and not Darwin's is way more fundamental than any of that, and takes place before the pro-popper argument is created in the first place. The misconception is actually about Darwin's Idea. What is Darwin's Idea...what made - and makes - 'natural selection' so powerful and definitive? Is it the specific, detailed, definitions of the components? How can that be so, when Darwin only vaguely grasped what he saw must be happening? No. The reason natural selection is profound is the opposite of that. The 'force' of natural selection emerges when a set of separate observations/insights are considered together. Those underlying observations or insights - or components - do become extremely important in their own right, taking on distinctive non-trivial (and in their own right, evolving) definitions. But they don't have to be detailed. They don't even have to be non-trivial. They can be stated vaguely, and 'natural selection' will still emerge when the set of them are considered all together, and all the profound implications right there along with it. Natural Selection is the structural arrangement - juxtapositioning - of individual phenomena that considered alone might or might not - but *need not* be - interesting. The reason the discovery is called profound, and Darwin regarded at the top most table of scientific greats, is because natural selection has to happen. And the reason it has to happen is the independence of the emergence of it, to components which descriptively are reducibe to the vague/trivial. From trivial roots arises Natural Selection and that is why it is profound, and why people knew it was correct generations before science had a handle on how it worked. The explanation for where does the substance come from is the increasingly substantial relationships between those components, ultimately leading to natural selection itself. And so by direct implication of how it comes about, Natural Selection is a *structure* level conception that describes an emergence...not just of natural selection itself, but the knock-on also, of its attributes of power, far-reachingness and profundity that made it famous and Darwin a genius. Those attributes are literally the robust attributes of that deceptively simple underlying structure of relationships. And so those are the terms on which Darwin's Idea are, and must be, defined - and this is why Popper's idea does not, and cannot, qualify as original to Popper. Different though it is in its specifics, at the *structural* level Popper's Big Idea is identical to Darwin's. The same underlying components, with the same relationships arising, delivering the same insights of far-reaching profundity. It doesn't matter what differently Popper did in his specific definitions, because those definitions can stripped back - reducible - to a trivial/vague core. At that abstract/stucture level the only differences between Popper's and Darwin's mechanism, are negatively scored against Popper. There is less true independence, because some of Popper's components invoke large assumptions....about human rationality, the human condition and so on. Maybe all of it correct, or substantially or mostly correct, or at least partially. Who knows...but what it definitely is is a very large and far extending stack of assumptions. And the profundity of natural selection is - as described above - very much a function of the absense or minimization of assumptions, and it is for that reason it it can be said that - by definition - it is not possible that Popper successfully preserves the profundity of Darwin's Idea across into his version of natural selection. Which is not to say Popper's version lacks profundity. But it is dependent on how well all those assumptions reflect the real world. Which is the normal structure of dependencies for pretty much every scientific theory...except Darwin's.