Purpose and Desire: What Makes Something “Alive” and Why Modern Darwinism Has Failed to Explain It is the new book by physiologist J. Scott Turner, author of The Tinkerer’s Accomplice: How Design Emerges from Life Itself.
The book may make some “skeptics” uncomfortable, but maybe they should read it anyways.
From the book:
I have come to believe that there is something presently wrong with how we scientists think about life, its existence, its origins, and its evolution.
Without a coherent theory of life, whatever we think about life doesn’t hold water. This applies to the major contribution we claim that the modern science of life offers to the popular culture: Darwinism.
… there sits at the heart of modern Darwinism an unresolved tautology that undermines its validity.
… do we have a coherent theory of evolution? The firmly settled answer to this question is supposed to be “yes” …
I intend to argue in this book that the answer to my question might actually be “no.”
Darwinism is an idea of intoxicating beauty, and yet there has been for many years a muddle at the heart of it, at least in its modern form.
… what it cannot explain is coming into stark relief, making it impossible any longer to ignore the muddle.
The problem for modern Darwinism is, I argue, that we lack a coherent theory of the core Darwinian concept of adaptation.
This type of reasoning is known formally as a tautology…
For Darwinism to make sense (and I want deeply for it to make sense), the tautology somehow needs to be resolved.
… the obstacle to resolving the tautology is not that we know too little — far from it — but that we aren’t thinking properly about what we do know. In short, the obstacle is largely philosophical, and the stumbling block is the frank purposefulness that is inherent in the phenomenon of adaptation.
… the uncomfortable question is this: what if phenomena like intentionality, purpose, and design are not illusions, but are quite real — are in fact the central attributes of life? How can we have a coherent theory of life that tries to shunt these phenomena to the side? And if we don’t have a coherent theory of life, how can we have a coherent theory of evolution?
– Turner, J. Scott. Purpose and Desire: What Makes Something “Alive” and Why Modern Darwinism Has Failed to Explain It. HarperCollins. 2017.
Biology, we have a problem. He wants Darwinism to make sense, but the book just doesn’t start out well for the Darwin disciples. Maybe someone else here will actually read it and explain how misguided this poor author is. He’s a Christian. Maybe he’s just lying for Jesus.
Another nail in the coffin.
You’re a “bright.” So why are you posting here at TSZ? Why don’t you and the other “brights” here at TSZ write for comprehension?
Why are you blaming others for your own incompetence?
What are you talking about?
Here’s what I quoted:
Coherent.
Mung:
Oh, the irony.
KN,
It’s perfectly reasonable to ask how homeostasis evolves, and it’s certainly within the purview of evolutionary theory. As John wrote earlier:
Turner thinks homeostasis is an issue only because he can’t believe that “mere mechanism” is capable of what he calls “wanting”, as I noted above:
Maybe I am missing something, but isn’t consciousness a prerequisite for desire? Or are we talking about something else, some internal “desire” perhaps? Could someone please explain?
I didn’t know Claude Bernard so tried to read up on him. Reading about the time he was recovering from illness, I encountered this:
uh? Apparently the man who coined the concept of homeostasis was not such a fan of vitalism.
I’m not getting the problem with homeostasis either. If one is permitted to imagine a very primitive replicator, it seems reasonable to suppose that genetic components that increase its persistence will increase in the population. Problems with homeostasis clearly cause a reduction of fitness, and so the reverse must also be true. One may imagine such a ‘primitive replicator’ to be impossible, as one way out, but I don’t see the logical problem with the case outlined.
Allan Miller,
I can’t see why it would matter whether something is reasonable to imagine. If imaging eyes evolving dozens of times is a reasonable imagination, than pretty much ANYTHING is possible to imagine in evolution.
Some of the stuff you mention wasn’t around at all when I went to college in the early 1990s. The version of the theory that we got in our courses was strictly modern synthesis (although there were early adopters of evo-devo in the developmental biology lab). But I did read, on my own and before taking many courses, Susan Oyama’s The Ontogeny of Information (the first edition was 1991, I think). It completely changed how I understood evolution and it remains foundational to my thinking to this day.
Oyama claims that evolution should be understood as ‘changes in the timing of developmental events’. That puts development conceptually central; mutations enter into the story at a secondary level, as mechanisms whereby the timing of those events changes. And development is teleological, as is the overall life-history or life-cycle of an organism. Oyama was one of the first biologists to really understand how evolution and development had to be conceptually integrated.
I think it was only a few years later that I read Brian Goodwin’s How the Leopard Changed Its Spots. Goodwin also urges that natural selection can’t be a ‘creative’ force, and that the origins of phenotypic novelty should be understood in terms of the physics of complex systems. That struck me as basically right, and I still think that’s true. I don’t know if I’d want to go as far as Goodwin does, but he’s clearly onto something.
All this is to say that I probably would count as a proponent of “the third way”, if I took the time to really explore it. These days I’m working on debates about enactivism in cognitive science, though enactivism has deep roots in Maturana and Varela’s theory of autopoiesis, which has close affinity with evo-devo and Third Way stuff. I’m also very interested in niche construction, since a few philosophers (Kim Sterelny and Joe Rouse) have argued that niche construction was a driving force in human evolution. That seems exactly right to me and I’ll work on that as well once the cognitive science part of my account is written up.
That seems like a really bad definition, as it leaves out everything that happens in one-celled organisms, everything that isn’t involved in development, like housekeeping genes, and every innovation that isn’t just about timing. Nor are all changes in the timing of development heritable, which seems a prerequisite for evolution.
Doesn’t really tell us how we got a four-chambered heart. Or why blue eyes exist.
Timing’s part of it, but hardly all.
Glen Davidson
Corneel:
It’s the latter, which is why I’ve been putting the word “want” in quotes.
Turner states categorically:
So when Mung is passed out on the floor next to an empty bottle, and his body is maintaining a steady temperature, it’s because there is “an actual desire” to maintain that temperature. I’m not sure whose “actual desire” Turner thinks it is. Mung’s? Mung’s body’s? God’s?
Mung, quoting Turner:
Corneel:
Turner argues that while Bernard was a scathing critic of metaphysical vitalism, he was actually a proponent of process vitalism.
KN,
Does she really say that? It seems obviously wrong to me (and to John and Glen).
I should point out that there’s already a word for “changes in the timing of developmental events”, and it isn’t “evolution”. It’s “heterochrony”. S. J. Gould wrote a whole book on the subject, Ontogeny and Phylogeny.
Kantian Naturalist,
Urgh. Bloody metazoan-centrists. Bloody metazoan-soma-centrists. Tiny twig on the ToL, think it’s all about them.
Some of my best friends are metazoans.
Thanks. That makes sense, sort of. I still see no way how a “desire” or “wanting” can be sustained without some conscious agent to perceive it. Or how that “desire” is able to impinge on biological systems.
Some of them? 😀
What is “process vitalism”?
And the rest just hate that about metazoans.
Glen Davidson
The arrogance of colonialism.
The ostensible vitalism is sounding increasingly like anthropomorphism to me. I cannot imagine how Turner (or anyone else) would come by the notion that a physical system desires to be in homeostasis, unless he had started with his subjective experience of himself living — which is not a phenomenon.
Right, and so I can’t see how anyone understanding all of this can’t irrefutably conclude that Darwinism is dead.
And it has been for a long time.
Darwinism isn’t dead, except in the wishful thinking of creationists.
I am not a Darwinist, and for somewhat similar reasons to KN. But the fact that I don’t agree with Darwinism doesn’t make it dead.
By analogy, Einstein’s relativity is widely regarded as superseding Newtonian mechanics. But Newtonian mechanics is not dead. It still works very well, and is easier to use than relativity. It is still very much in use.
It’s best to recognize that scientific theories are chosen for their pragmatic value, rather than for their truth. Darwinism won’t be dead until it is discarded, and it won’t be discarded as long as it continues to be useful.
That reminds me of Minsky’s “Society of Mind.”
Oh, if you want to say Darwinism is still around because its useful, and not because its true, well, then I might agree with you.
Its useful for every person who wants to cling to atheism. Because without it, you have nothing. So for sure its useful. And for sure its not true.
phoodoo,
Well said phoodoo! There is more…
It makes it dead to you.
Mung,
Wouldn’t it be nice to actually understand the contents of the books you buy? Right now they seem to serve only as a) fodder for quoting or quote mining, and b) expensive props to be placed on your bookshelves and photographed.
Instead of flushing all that money down the toilet, why not take a remedial course in reading comprehension so that you could at least make an attempt at understanding the books in your library?
John,
Just a different version of magic. Process vitalism ditches the magic “vital force” of metaphysical vitalism and replaces it with magical coordinated aims, interactions and knowledge shared among the numerous parts of a living organism (hence the “many little lives” metaphor).
It’s all about intentionality, baby!
For Turner, the “desire” of homeostatic systems seems to be just a special case of this intentionality.
Turner writes approvingly of Cuvier on page 87:
Mung,
To me Turner keeps referring to vitalism in sense what (force, energy etc) makes inanimate matter animate…
Nobody has been able to explain it, prove it exists or doesn’t, is needed for life or not…
To me the answer is pretty simple: If inanimate matter didn’t need any special force or energy, we would be able to recreate at least the “simplest” life form…
I think it makes a pretty good sense to suspect that dark energy could become the force for “vitality”…73% of the universe is dark energy and it permeates everything in it including us…My bet is on DE!
keiths,
Is there any way to explain it that actually makes sense?
John,
To a reality-based person? None that I’m aware of.
Swapping out metaphysical vitalism for process vitalism is just replacing one form of magic with another.
J-Mac,
Then you’ve badly misunderstood him. No surprise.
phoodoo,
Oh, I dunno. I’ve still got my disbelief in God.
Heh. You said it!
keiths,
Thanks for the explanation. I think I can see the shape of it now.
Will a virus do?
J-Mac,
Figures.
So you finally don’t believe in Darwinism?
phoodoo,
That doesn’t follow. ‘Darwinism’ (however you are using that somewhat redundant term) was never the reason for my atheism; not-believing-in-God was.
J-Mac:
Corneel:
Since J-Mac won’t know what you’re talking about:
Doesn’t it occur to you that when you are siding with the proposition that purpose and desire are illusory, then appeals to “make sense” are self-contradictory?
Useful puts it ahead ID at least
This is silly. Darwinism is still useful because it is part of biological research. Atheism doesn’t need it. Atheism grows from the absurdity of religious belief.
Not so. As long as important biological research is being done in terms of Darwinism, it is still useful to me.
Allan M. makes many good arguments here, no doubt based on his experience and knowledge. He presents his arguments in Darwinist terms. I can still recognize that they are good arguments, and I have no problem understanding them in terms of how I understand biology (i.e. without Darwinism).