I'm hoping this sparks some comments from Tim, Ohioan and Mut as well as anyone else who is interested. This is a really long post, but I think it's worth it.
I thought this was a fascinating conversation between Joe Rogan and Bret Weinstein. They're both compelling characters and the topics were wide-ranging. At one point, Joe brought up the growing doubts about Darwinian evolution. Fortunately, there are transcripts online of the Joe Rogan podcast, so I didn't have to go through any technical gymnastics to get these excerpts.
Here, I will edit for brevity, but that link will take you to the source. Search on Darwin and you'll immediately get the relevant bit. Emphasis in the text is mine.
Joe: We have to talk about evolution because one of the things that Tucker Carlson said on the podcast was essentially that He can't like prove evolution. It's not real. He doesn't believe in evolution as it's taught.
Bret: He said well, he said a couple things. It was a little confusing. He said that you know, we see evidence of adaptation, but we don't see evidence of evolution and that we've really gotten beyond the Darwinian model. We've essentially come to understand that it's not right.
It's an argument for intelligent design, I think. First of all, I want to clean up a little bit of what he said just so it's
I don't really think he means we see the evidence for adaptation but not evolution. That's not coherent. I think what he means is we see evidence for what we would call microevolution, but we don't see evidence for what we would call macroevolution. This is a commonly believed thing in intelligent design circles.
I think people want the career evolutionary biologist to break out a bunch of examples from nature that make the case. Very, very clear so that they can relax.
Tucker's concern isn't based in science, and they can go back to feeling comfortable that, you know, the Darwinists have it well in hand.
That's not where I am.
I could do that, but I don't feel honorable doing that. I think, as a scientist, I should not be in the business of persuading people. I want you to be persuaded. I want you to be persuaded by the facts. I want them to persuade you. But I don't think I'm allowed to persuade you. I think that it's effectively PR when I attempt to bring people over to Team Darwin.
Further, as I'm sure I've mentioned to you before, I'm not happy with the state of Darwinism as it has been managed by modern Darwinists. In fact, I'm kind of annoyed by it. And although Tucker, I do not believe, is right in the end, there is a reason that the perspective that he was giving voice to is catching on in 2025.
And it has to do with the fact that, in my opinion, the mainstream Darwinists are... Telling a kind of lie about how much we know and what remains to be understood.
So all that being said, let me say, I think modern Darwinism is broken. Yes, I do think I know more or less how to fix it. I'm annoyed at my colleagues for, I think, lying to themselves about the state of modern Darwinism. I think they know.
I think I know why that happened. I think they were concerned that a creationist worldview was always a threat that it would reassert itself. And so they pretended that Darwinism was a more complete explanation as it was presented than it ever was.
Joe: What is wrong with Darwinism? What do you think that Darwinism is doing itself a disservice by saying?
Bret: There are several different things that are wrong with it. The key one that I think is causing folks in intelligent design circles to begin to catch up is that the story we tell about how it is that mutation results in morphological change is incorrect.
This is a very hard thing to convey, and I want to point out that if the explanation for creatures is Darwinian, that does not depend on anybody understanding it, and it does not depend on anybody being able to phrase it in a way that it's intuitive.
... (Here there is an example of forms morphing into other forms) ...
So what that means is there are chemical differences between an excavator and a sports car.
But they're not the story of the differences in what those two creatures do. The chemistry differences are incidental.
Now, when we tell you that the differences that a bat became a flying mammal because it had a shrew-like ancestor, and that shrew-like ancestor had a genome spelled out in three-letter codons, those three-letter codons specify amino acids of which there are 20, and that the difference between the bat and the shrew is based in the differences in the proteins that are described by the genome.
We are essentially saying that the difference between the bat and the shrew is a chemical difference. It's not a simple chemical difference the way it was when we were talking about excavators and sports cars, but nonetheless, it's a biochemical difference, right? The difference in the spelling of its proteins and structural proteins and enzymes and all of that stuff.
I don't believe that mechanism. Is nearly powerful enough to explain how a shrew-like ancestor became a bat.
There's a whole layer that is missing that allows...
Evolution to explore design space much more efficiently than the mechanism that we invoke.
(The mechanism is) random mutation, which I believe in. Random mutation happens. Selection, which chooses those variants that are produced by mutation and collects the ones that give... The creature an advantage. There's nothing wrong with that story. That story is true. Okay, random mutations happen, selection collects the ones that are good, and those collected advantageous mutations accumulate in the genome. All of that is true.
What I'm arguing against is the idea that that transforms a shrew into a bat.
What you need to get a shrew turned into a bat is a much less crude mechanism, whereby selection, which is ancient at the point that you have shrews, explores design space looking for ways to be that are yet undiscovered more systematically than random chance.
I believe there's a kind of information stored in genomes that is not in triplet codon form, that is much more of a type that would be familiar to a designer, either of machines or a programmer.
What we did was we took the random mutation model.
And we recognized that it was Darwinian, which it is. And we therefore assumed that it would explain anything that we could see that was clearly the product of Darwinian forces on the basis of those random mutations. And we skipped the layer in between in which selection has a different kind of information stored in the genome that is not triplet codon in nature.
Joe: So there's an information stored in the genome that is motivating it to seek new forms?
Bret: Nope, not motivating, allowing it.
Joe: Allowing it. Allowing it. So what's the motivation to seek new forms?
Bret: Oh, the motivation was there. It's primordial. Right. So the point is, let me try by analogy.
Darwinists will tell you that evolution cannot look forward. It can only look backward. And there's a way in which that's just simply true. On the other hand, a Darwinist will also tell you that you are a product of evolution and you can look forward.
Right? So if evolution can't look forward but it can build a creature that can, then can evolution look forward?
I think it effectively can. So my point is that random mutation mechanism is in a race to produce new forms that are... Better adapted to the world than their ancestors?
What if it can bias the game? It can enhance its own ability to search, right? If you lose your keys, you don't search randomly, right? You go through a systematic process of search, and that systematic process of search results in you finding your keys sooner than you would otherwise.
So we should expect evolution to find every trick it can access to. Increase the rate at which it discovers forms that would be useful in the habitat in question. And this is simply that. I'm not really saying anything that extraordinary, right? If I say, you know, do you know that computers, all they do is binary? Well, that's true.
But if you then imagine that that means that the people who program computers do it in binary, well, there was a time when that was true. But it's not true anymore. It's not how you do it.
There's a much more efficient way to program a computer, and it involves a programming language, which a computer itself can't understand. But you can build a computer that can either interpret the language in real time, or you can build a computer that can accept the code as it's spit out by a compiler.
These are mechanisms to radically increase the effectiveness of a programmer. But it all comes out. Binary anyway, in the end. That's really what I'm arguing, is that there's the initial layer of Darwinian stuff, the random mutation layer that it looks like what we teach people.
There's another layer, which we're not well familiar with, and it results in a much more powerful capacity to adapt than we can explain with that first mechanism, which is why guys like Tucker Think there's just something these Darwinists, they keep telling me that the shrew becomes a bat.
And then they go on this rant about the random mutations and the triplet codons and the, you know, mutations that actually turn out to be good. It's just not powerful enough. And they're not wrong.
They're detecting something real. And frankly, you know, Tucker is the layperson example of this. You've had Stephen Meyer on, you know, he's actually. He's a scientist who's quite good, and he's spotted that the mechanism in question isn't powerful enough to explain the phenomena that we swear it explains.
Joe: What do you think that force is?
Bret: It's not a force. So I don't know how much of this I've made clear. If you fill in the missing layer, it's purely Darwinian.
None of this establishes that Darwin had it.
It's another Darwinian mechanism, right? I mean, and let me, this is, there's nothing strange about this. If you think about the way a human being works compared to, let's say, a starfish, a human being has a software layer. A cognitive layer in which the human being is born into an environment.
And that environment could be, you know, a hunter-gatherer environment of 10,000 years ago, or it could be a modern environment. And the human being doesn't have to be modified at the level of its genome in order to function differently in those two environments. It has to be sensitive to the information in those environments so that it can become adapted to them developmentally.
Right? So development is one trick that the genome uses to make a human being more flexible than other creatures. Right? You do not come out of the womb being ready to do human stuff.
Right? You are profoundly hobbled by not having a complete program. But it means that the program you develop can be highly attuned to your particular moment in time and location in space. That is...
The Darwinian mechanisms that store information in the genome solving an evolutionary problem in a different way. So this is already a second layer that doesn't function like that random mutation layer.
So evolution should be expected to find all of the cheat codes and to build them in. Because any creature that has access to all of these different ways of adapting more rapidly or more effectively, will outcompete the creatures that have fewer of these things. So you should expect, what I often say is, we have to remember, we are not looking at Darwinism 1.0.
You're looking at Darwinism 10.0. You're looking at a highly sophisticated evolutionary structure that is the result of all of the discoveries of the prior structures. And that includes some things that... Modern creatures can do, but it also includes an evolution of enhanced evolutionary capacity, including things like culture.
A couple of things jumped out at me as I listened to them talk.
First, in mathematics, you most certainly are trying to convince people. That's what proofs do. I don't understand how that cannot be said for physics, chemistry or biology. How is that supposed to work? Do we just share massive spreadsheets of experimental data with each other and everyone comes to their own conclusions? How does peer review work in such a world? It sounds like a cop-out.
Second, it was a bit of a stunner for Bret to admit to the flaws of Darwinian evolution. I have liked Bret since he first came on the scene in the Evergreen State imbroglio, but this deep honesty and integrity surprised me. Well done, Bret!
Thirdly and finally, Bret tries to hold on to Darwinian evolution by an appeal to magic. Apparently, there is an unknown motive force working at the molecular level that gives the necessary turbo boost to Darwinian evolution, allowing shrews to turn into bats and, for all we know, back down to shrews again.
Hey, why not?
Here's my problem, one where I am open to corrections. I had thought that molecular chemistry was a pretty well-understood thing. Bret seems to be arguing that there is a layer on top of molecular chemistry that we don't understand. Further, he is making an argument of faith. That motivating force is necessary to preserve Darwinian evolution and that's why it exists.
Nature abhors a vacuum and, apparently, it abhors a vacuum in Darwin's theories most of all.
So tell me, scienceological thinkerists, where your thinkerations lead you.
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It seems relatively clear to us, but I'm a simple man and Cat is a simple cat. |
2 comments:
First, I agree with you about Bret's crack about "not trying to persuade people". Showing people information, and explaining what you think it means, is the essence of persuasion.
As for the rest of it, (a) it was unreasonably long and rambly, and (b) as near as I can tell, he's just saying that there are factors beyond straight read-off-the-dna-and-make-a-protein going on. Which is true. And most biologists talking to the general public don't bring it up. Not out of dishonesty, but because the moment they do, the eyes of the person they are talking to immediately glaze over. This information handling that is beyond just straight DNA transcription is "Epigenetics", which is an active and ongoing area of study, and currently is in the state of probably having more questions than answers (which is not surprising for a field of study that has really only been active for about 30 years)
https://en.wikipedia.org/wiki/Epigenetics
In regard to your problem: Molecular chemistry is fairly well understood, but molecular chemistry is to genetics and epigenetics as a cuckoo clock is to a modern supercomputer cluster. And even that might be understating the case.
I tend to think of a DNA strand/ribosome pair as being basically a real-life implementation of a Turing machine: The ribosome is the computing element, and the DNA strand is the tape that it moves along and takes instructions from. Output is generally in the form of RNA strands, which are basically commands to make this protein, or generate this compound, or assemble these components like so to make this other chemical, or excrete this, or assimilate that, or move things here and assemble them like so, or . . . Anyway, i expect you get the idea. It is true that at the fundamental level, it is chemistry. But it is doing things that are more understandable as fiendishly complex self-modifying computing and micromanufacturing than in terms of "Mix Compound A and Compound B to make Compound C".
Since there is a great deal going on that we simply don't have the capability to even observe properly, let alone have theories about, there is no reason why you can't just say "Well, God must be managing it, then" if that's something that you find satisfying. I still think we should be looking into it to figure out more about how it actually works, though. Even if God is directly involved in guiding evolution, there is a big difference between "See, this is where God physically pushed around molecules to manufacture this particular set of novel genes in this particular egg", versus "See, this is the mechanism that was set up 2 billion years ago, so that organisms can properly optimize the use of the random mutations and variations in their genomes."
Obviously this has taken a while for me to write. You'd probably expect a clearer exposition as a result, but nope. Anyways, here goes nothing.
Most of what that guy said was either obvious or gibberish. "I don't think I'm allowed to persuade you." Hogwash. I think our desire in the sciences for proof, and the evidence we use is more like a rigorous proof and that mode will continue to be used as the primary means of introducing new ideas. The idea of just publishing all the data and saying - figure it out for yourself is idiotic. Note that in Darwin's Origins of Species he lays out tons of observations that led him to the conclusion of evolution, but he was making such a controversial claim that he probably felt that he needed to lead the world through the data. I'd say that he was persuading people. I'd also say that that was (and is) the point.
Then "I had thought that molecular chemistry was a pretty well-understood thing. Bret seems to be arguing that there is a layer on top of molecular chemistry that we don't understand." I'd say that molecular chemistry IS a pretty well-understood thing. But the systems often become so complicated that I can't predict what will happen. Math is pretty well understood, but minor changes in complicated systems (dynamical ones with feedback in particular) can produce unexpected outcomes. Raise that to the umpteenth power and you are getting close to my understanding of the cell - at least as to what the result of a minor change in the molecules present at any moment at time would produce. As to whether or not there is a "motivating force" needed to preserve Darwinian evolution, I would say that is well beyond decidable at the current time, but I'd put my money on 'it is not necessary'.
The idea of a 'turbo boost' isn't quite new. Stephen Jay Gould (evolutionary biologist interviewed in Ken Burns' masterwork "Baseball") has promoted the idea of punctuated equilibrium where very little changes (evolutionarily) for long periods of time, then something acts as a catalyst (such as an asteroid smashing into the Gulf of America) and then lots of major changes occur in quite short periods of time. But it would beg the question, where does the boost come from (other than deep space and the opening of vast opportunities for new species)? I have thought about this and I really don't have any clear thoughts. [Aside: One muddled thought is that there is lots of junk DNA in the genome that is kept dormant. Presumably in some ancestor it was used. Maybe turning some of that back on happens from time to time. That could make major changes. And yes could sometimes make evolution take a step back from bats to shrews.]
Like I said earlier. Kind of a mess, but it is what it is.
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