The Discovery Institute wants my money

royalflush

I got a begging email from our good friends at the Center for Science & Culture. They’re going to have to work a lot harder to persuade me.

Dear PZ:

Wait. Dear PZ? I’m having a tough time imagining any of those bozos addressing me as dear. But let us continue.

Intelligent design is a common sense idea. Research has shown that children intuitively recognize design in the world around them. You and I make design inferences every day. It has taken a long time for the scientific community to catch up with the kids. But that day is coming.

Intuitive and “common sense” assumptions are often wrong. You might enjoy these misconceptions children have about physics, for instance. I look forward to their new slogan: Intelligent Design: so simple, only a child would believe it. Except that it’s insulting to children.

The rest of the letter is all about the crap science they’ve been dumping on the public this year, and threatening to publish more.

For over 19 years, the Research & Scholarship Initiative of Discovery Institute’s Center for Science & Culture (CSC) has worked to build the scientific case for design and to winsomely communicate their research and scholarship to a broad audience.

Heh. This is the first time I’ve every seen the adverb “winsomely” applied to what the creationists do. I had to go to the Evolution News website to see an example of their winsome articles. Here’s one: Rubik’s Cube Is a Hand-Sized Illustration of Intelligent Design.

For those interested in explaining ID to people without a lot of memory work, the Rubik’s Cube can be a useful instructional aid. You don’t have to master the art of solving it. Save your sanity; just buy two cubes, and don’t touch the solved one. Lock it into a plastic case if you have to, so that you won’t have to try all 43 quintillion combinations in front of your audience. Or, rent a kid who can fix it in a few seconds.

Explain that the cube is a search problem. Take the scrambled one, and show how you want to get from that one to the solved one. You need a search algorithm. Which approach is more likely to find the solution — intelligent causes or unguided causes? The answer is obvious, but go ahead; rub it in. A robot randomly moving the colors around could conceivably hit on the solution by chance in short order with sheer dumb luck (1 chance in 43 x 1018), but even if it did, it would most likely keep rotating the colors right back out of order again, not caring a dime. It would take an intelligent agent to recognize the solution and stop the robot when it gets the solution by chance.

More likely, it would take a long, long time. Trying all 43 x 1018 combinations at 1 per second would take 1.3 trillion years. The robot would have a 50-50 chance of getting the solution in half that time, but it would already vastly exceed the time available (about forty times the age of the universe). If a secular materialist counters that there could be trillions of robots with trillions of cubes working simultaneously throughout the cosmos, ask what the chance is of getting any two winners on the same planet at the same place and time. The one concession blocks the other. And what in the materialist’s unguided universe is going to stop any robot when it succeeds? The vast majority will never succeed during the age of the universe.

Now rub it in. It would vastly exceed the age of the known universe for a robot to solve the cube by sheer dumb luck. How fast can an intelligent cause solve it? 4.904 seconds. That’s the power of intelligent causes over unguided causes.

Now really, really rub it in. The Rubik’s cube is simple compared to a protein. Imagine solving a cube with 20 colors and 100 sides. Then imagine solving hundreds of different such cubes, each with its own solution, simultaneously in the same place at the same time. If the audience doesn’t run outside screaming, you didn’t speak slowly enough.

Oh, man. So much wrong.

One problem with ID’s argument is that they are committed to the fallacy of a specified target for an evolutionary search. So the “goal” of evolution is to produce a human being, and given the 3+ billion years of chance and variation, and the multitude of different forms produced, I’ll agree: the likelihood of our specific form arising from a sea of single-celled organisms is extremely unlikely. But evolution doesn’t care; it doesn’t have a goal; it spawns endless different forms, so we get elephants and algae at the same time that we get, in one brief and fleeting moment of geological time, anthropoids.

One problem with their Rubik’s Cube example is that it does have a known goal: you’re supposed to get each side to a different solid color. Their single enshrined cube set to a single specific solution is a good example of the poverty of Intelligent Design creationism.

If I were to use Rubik’s Cube as a demonstration of how evolution works, I’d have to do something very different. We have about 20,000 genes, so I’d have to by 20,000 Rubik’s Cubes (not on a professor’s salary), and I’d set each one to a different arrangement. Much of it would be chance, but for some, I’d make a desultory effort. Can I get this one to display mostly green squares on one side? On this one I want three adjacent squares to be red. Another one has alternating yellow squares on one face. You get the idea — I want diversity, and I don’t have to work as hard or as narrowly to get it. I’d also just stroll through the house, tripping over these stupid Rubik’s Cubes everywhere, and occasionally twisting one.

That’s closer to evolution than the DI’s vision.

They’re always making this mistake of assuming the only correct solution is one pre-specified result. I really want to play poker with them: I’d tell them first that the goal of the game is get a Royal Flush, and they’d fold at every hand and I’d clean up with every feeble deal.

One other problem with their analogy is that they’re comparing the cube to the wrong thing. The more natural comparison is not to evolution, but to protein folding. Here’s this chain of amino acids, and you have to twist it into a specific conformation that will function…why, the numbers say this is nearly impossible! And math doesn’t lie!

Here’s a 1993 paper by Fraenkel, Complexity of Protein Folding, that says this.

It is believed that the native folded three-dimensional conformation of a protein is its lowest free energy state, or one of its lowest. It is shown here that both a two- and three-dimensional mathematical model describing the folding process as a free energy minimization problem is NP-hard. This means that the problem belongs to a large set of computational problems, assumed to be very hard (“conditionally intractable”). Some of the possible ramifications of this result are speculated upon.

All the mathematicians and computer scientists out there will recognize that word, NP-hard. This represents a computationally very difficult problem that isn’t easily solved (a Rubik’s Cube is not NP-hard, I don’t think–there are relatively simple algorithms that can solve it, although getting an optimal, minimum-number-of-moves solution might be harder — I haven’t been following the math.) Fraenkel explains the problem in words that will bring joy to the heart of every IDiot, as long as they don’t read the rest.

Each amino acid in a protein can adopt, on average, eight different conformations (Privalov, 1979). A relatively small protein, consisting of 100 amino acids, can thus potentially assume 8100 conformations.

Whoa — 8100 conformations is a much bigger number than 43 x 1018 combinations of the Rubik’s Cube that so impressed the Discovery Institute. I guess we’re done here. It’s impossible for any of my proteins to fold into a functional shape before the heat death of the universe, therefore there must be trillions of invisible tiny angels flitting about winsomely in my body, lovingly crafting DNA Polymerase II for me, cunningly assembling actin monomers into fibers, shuttling electrons about in my mitochondria with focused attention to every detail. I eagerly await the moment when the Discovery Institute lifts those 2 sentences from Fraenkel in their promotional literature.

I assume they’ll conveniently ignore the existence of the next two sentences.

Yet nature attains the native conformation in about 1 sec. (Note that the claim that nature assumes the global minimum free energy conformation in 1 sec is not equivalent to saying that it explores all the 8100 potential conformations in 1 sec!)

So protein folding is a much more difficult problem than solving a Rubik’s cube. The DI is dazzled by a human solving the cube in under 5 seconds, and thinks this demonstrates the superiority of intelligence over other natural causes. Yet the much more difficult problem is solved by the cell in under a second.

Point to physics, chemistry, and biology. Magic intelligence loses again.

Hey, do you think the writers at the Center for Science & Culture have a joke dictionary that defines “winsomely” as “stupidly”? That would make sense.

A glorious moment…and this too shall pass

I am 100% done with my grading. My desk is clear. It shines so…I can see a glint of light reflected off the tears in my eyes. Perhaps I will dance, or sing, or raise my arms and eyes to the heavens and shout, “Hallelujah!”

I am totally caught up for the first time this semester.

Do not tell me that next week I’m giving a lab final, an in-class exam, and that I will be getting nine major term papers turned in. No, that’s not happening. If I deny it enough, they’ll all go away, right?

Why would anyone shoot up a social services building?

I know the gun-fondlers are all cowards hiding behind their weapons, but charging in to kill 12 people at a building that provides assistance to developmentally disabled people? WHY? It’s as if they decided to target the weakest people in society needing the greatest help.

<insert vague and futile expression of hope that this tragic crime will finally motivate government to crack down on the folly, a hope that will never be fulfilled and will only produce more cynicism and despair>

A meeting of the minds

Brian Kilmeade interviews Donald Trump. You can stop right there, you say. That is just too much stupid to be borne. You would be right to stop reading now. Don’t click to go on to the next page. Do not click that link.

You’ll regret it if you do.

Last chance! Turn back now! You’ll be happier if you just go read some webcomics instead.

No, really. I like The Non-Adventures of Wonderella. Questionable Content is always good. Maki Naro? Trust me. Anything. Well, not Dilbert. Almost anything.

You’re still reading? What the fuck is wrong with you?

OK, as long as you understand the principle of informed consent, you may continue. The safeword is any kind of gurgled, choking scream.

[Read more…]

None of them ever have a racist bone in their body

The stories of the suspects in the Black Lives Matter shooting are trickling out now. You won’t be surprised to learn that they’re all saying they aren’t racist at all.

His dad says of one that he’s a poli-sci major, and “these kinds of social-political things really interest him, and he was just there to observe”. Right. Just there to observe, while hanging out on 4chan, wearing a mask, taunting the protestors, and watching as a friend flaunts a pistol and starts shooting. I suppose it’s possible his crime was just having really shitty friends, but in that case, I’m sure he’ll helpfully testify against those other racists he was running around with.

You know, I’m a guy who is really interested in creationists, a group of people I despise, and I also care about observing them and learning more about what they’re doing. But my strategy is to be open about who I am, clearly state my position, and observe politely without interfering — I’ve gone to creationist events with friends and students, and what I always tell them is to be polite and non-disruptive and learn…and also document. I guess I’ve been doing it wrong. Maybe if I were a poli-sci major, I’d know to disguise myself, yell slurs at the audience, and maybe take a few pot shots at them.

Also, one of my kids was a poli-sci major, and if he were involved in something like this, I wouldn’t be making excuses for him. This was a crime, and a stupid crime at that, and the perpetrators were all fully grown men in their twenties. You do not learn responsible adult behavior on 4chan.

Making popcorn for the coming tardigrade wars

tardigrade

This could get interesting. I’ve seen a lot of stories about this recent paper on the tardigrade genome:

Horizontal gene transfer (HGT), or the transfer of genes between species, has been recognized recently as more pervasive than previously suspected. Here, we report evidence for an unprecedented degree of HGT into an animal genome, based on a draft genome of a tardigrade, Hypsibius dujardini. Tardigrades are microscopic eight-legged animals that are famous for their ability to survive extreme conditions. Genome sequencing, direct confirmation of physical linkage, and phylogenetic analysis revealed that a large fraction of the H. dujardini genome is derived from diverse bacteria as well as plants, fungi, and Archaea. We estimate that approximately one-sixth of tardigrade genes entered by HGT, nearly double the fraction found in the most extreme cases of HGT into animals known to date. Foreign genes have supplemented, expanded, and even replaced some metazoan gene families within the tardigrade genome. Our results demonstrate that an unexpectedly large fraction of an animal genome can be derived from foreign sources. We speculate that animals that can survive extremes may be particularly prone to acquiring foreign genes.

And here are a few of the follow-up stories in the popular press:

The Tardigrade, World’s Cutest Microscopic Animal, is Filled with Alien DNA

What the World’s Toughest Animal Is Really Made Of

Indestructible ‘Water Bears’ Have Really Weird Genomes

The authors are saying that about 18% of the tardigrade genome is a product of horizontal gene transfer…that they’re full of genes gathered up from bacteria, and that this was adaptive, playing a role in their ability to survive desiccation.

I have to say…I had my doubts. That seemed really unlikely, not only that they’d have a history of that much HGT, but that it could be assigned to functional roles. But OK, they published it, let’s see how it shakes out.

Here’s where it gets interesting: another paper has just come online that says it’s all an artifact. Tardigrades are tiny, on the order of a thousand cells, so it’s difficult to sample them for sequencing without also picking up lots of bacterial contamination. Here’s the abstract:

Tardigrades are meiofaunal ecdysozoans and are key to understanding the origins of Arthropoda. We present the genome of the tardigrade Hypsibius dujardini, assembled from Illumina paired and mate-pair data. While the raw data indicated extensive contamination with bacteria, presumably from the gut or surface of the animals, careful cleaning generated a clean tardigrade dataset for assembly. We also generated an expressed sequence tag dataset, a Sanger genome survey dataset and used these and Illumina RNA-Seq data for assembly validation and gene prediction. The genome assembly is ~130 Mb in span, has an N50 length of over 50 kb, and an N90 length of 6 kb. We predict 23,031 protein-coding genes in the genome, which is available in a dedicated genome browser at http://www.tardigrades.org. We compare our assembly to a recently published one for the same species and do not find support for massive horizontal gene transfer. Additional analyses of the genome are ongoing.

And their conclusion:

Our assembly, and inferences from it, conflict with a recently published draft genome (UNC) for what is essentially the same strain of H. dujardini. Our assembly, despite having superior assembly statistics, is ~120 Mb shorter than the UNC assembly. Our genome size estimate from sequence assembly is congruent with the values we obtained by direct measurement. We find 15,000 fewer protein-coding genes, and a hugely reduced impact of predicted HGT on gene content in H. dujardini. These HGT candidates await detailed validation. While resolution of the conflict between these assemblies awaits detailed examination based on close scrutiny of the raw UNC data, our analyses suggest that the UNC assembly is compromised by sequences that derive from bacterial contaminants, and that the expanded genome span, additional genes, and HGT candidates are likely to be artefactual.

This could get very interesting.

Something else on my plate

Tomorrow, I’m recording a discussion for British Christian radio (how do I get myself into these things?), on the show Unbelievable with Justin Brierley. I’m talking with Perry Marshall, who some of you may remember yapping around these parts a while back, and who has a book out called Evolution 2.0, which I had to read.

Yes.

I read it.

Dear gob.

Just to help you picture this: he’s an electrical engineer and SEO guy with only the most superficial, and often wrong, knowledge of biology, and he has written a book in which he explains how all those biologists have got everything wrong. I was most entertained by the parts where he explains how there is all this amazing stuff in biology that we never tell anybody about, and one of his examples was something I lectured my cell biology class about last week, and a couple of the examples were things I talked about in my freshman biology course this morning.

In other words, his stunning revelations that will revolutionize evolutionary biology were all known mechanisms that are so well established that we teach them in basic college courses, and often simply take for granted. And he gets them wrong. Wrong wrong wrongity wrong.

But he’s frenetically glib about it all, which is apparently a useful attribute if you’re trying to sell car stereo speakers. It’s not at all impressive when you’re pushing pseudoscience.

Flat white

I took a break from the grading and grabbed a quick aerial shot of the results of last night’s snow storm. Morris is still flat, but at least it has a fresh coat of whitewash.

snow day

I won’t inflict more drone videos on you until I’ve mastered that flying thing. Also, what do you call it, video editing. Yeah, that would be good to know.

Now, back to the stacks!