# The Return of Granville Sewell

Remember Granville Sewell? He’s the alleged mathematician who wrote the very non-mathematical “A Mathematician’s View of Evolution”, which I fisked [a few weeks ago](http://scienceblogs.com/goodmath/2006/10/second_law_slop_from_granville.php). Well, he’s back with a response to the people who criticized him, called [“Can Anything Happen in an Open System?”](http://www.math.utep.edu/Faculty/sewell/articles/open.pdf)
Did he actually address any of the criticisms in a substantial way? Did he actually say *anything* new?
Of course not. Do these idiots *ever* really address criticisms?

He starts off with an introduction that seriously makes me question his competence as a mathematician:
>Mathematicians are trained to value simplicity. When we have a simple, clear
>proof of a theorem, and a long, complicated, counter-argument, full of hotly
>debated and unverifiable points, we accept the simple proof, even before we find the
>errors in the complicated argument. Mathematicians are trained to value simplicity. When
>we have a simple, clear proof of a theorem, and a long, complicated, counter-argument,
>full of hotly debated and unverifiable points, we accept the simple proof, even before
>we find the errors in the complicated argument.
This is an utterly ridiculous statement for a mathematician to make. In math, we *don’t* accept simple arguments over complicated ones because they’re simpler. *Ever*.
It’s true that if we have a simple proof and a complex counterargument, we’ll accept the simple proof. But not because one is simple and one is complex. It’s because a proof of a theorem and a counter-example to that theorem *are mutually exclusive*. If the proof is correct, the complex counterexample *can’t* be, and it’s *usually* easier to check the validity of a simple proof than a complex counter-argument. Whichever one we can verify with less effort is generally the one we attack: because *a valid proof* of a theorem disproves the existence of a counterexample; and a *valid proof* of a counterexample to a theorem *disproves* the theorem.
He then uses this argument to handwave away any arguments about his claims about gradualism, and focus the rest of the paper on his “second law of thermodynamics” argument. And basically, from there on, he just starts to repeat, almost verbatim, the arguments from the *original* paper, simply pretending that the criticisms of that crappy argument don’t exist.
Just as a reminder, the basic criticisms of his original argument included:
1. He tries to conflate evolution with randomness.
2. He uses a strawman version of the “open system” argument about why evolution does’n violate the second low, to characterize evolution’s thermodynamic where evolution is equivalent to a computer being able to assemble itself in one room (allegedly decreasing entropy in that room) because two computers in the next room fall apart (increasing entropy more than the decrease of the computer assembling itself.)
3. He separates entropy into multiply different *kinds* of entropy, and asserts (incorrectly) that they are totally distinct. (So “heat entropy” can only produce heat; “carbon diffusion” entropy concerns only the diffusion of carbon, and you can’t reduce “carbon diffusion” entropy by adding a bunch of heat.)
It’s amazing that he considers this a *response* to criticism, because he doesn’t actually acknowledge any of these real criticisms of his arguments.
The closest he comes to acknowledging any criticisms is to come up with a really stupid strawman, which is itself just a rehash of the garbage from the original paper:
>It requires only a modicum of common sense to see that it is extremely improbable that
>atoms should rearrange themselves into mammalian brains, computers, cars, and airplanes,
>even if the Earth does receive energy from the Sun. We will see that the idea that
>anything can happen in an open system is based on a misunderstanding of the second law;
>that order can increase in an open system, not because the laws of probability are
>suspended when the door is open, but simply because order may walk in through the door.
This is just a rehash of the same-old argument from the original paper. Sure Granville, *no one* would be inclined to believe that a powerbook like I’m typing this on would spontaneously assemble itself from a pile of sand on a beach. But that’s *not* an accurate metaphor for evolution. You see, *computers don’t reproduce*; they don’t *consume* resources to provide themselves with power; they don’t *produce* waste.
Living things don’t violate the second law. We create some small decreases in entropy (for example, in producing the structure of our cells) by consuming energy in the form of resources, and in the process, we create a *much larger* increase in entropy in the form of waste heat and waste materials.
From this, he moves on to reiterate his nonsense about different kinds of entropy:
>If we take a book of random letters and blow vowels into the
>front of the book (pretend letters can diffuse!) and suck them out the back, we
>can import order into the book, if randomness of the vowel distribution is used to
>measure order. Vowels are essential for words, just as solar energy is essential for
>life, but this process is not going to produce a great novel-that is a different KIND
>of order.
Sorry Granville, but this is just pure obfuscatory math: come up with a meaningless distinction, throw some equations at it to make it look credible, and then talk really fast. Thermodynamics doesn’t define a bunch of different non-interchangeable “kinds” of order. It defines *one* thing: thermodynamic entropy. There aren’t “different kinds” of order in thermodynamics. Your equations are pointless and irrelevant, because *they have nothing to do with thermodynamics*. They’re built on an invalid, unjustified distinction. The fact that you can write some equations doesn’t make your fabricated distinctions any less invalid. Unless you can show *how your equations for different kinds of non-interchangeable entropy necessarily follow from the second law of thermodynamics*. And you don’t do that – because you *can’t* do that.
It comes back to that little ditty from the beginning of this post: the existence of a valid counterexample disproves a theorem. We can quite easily show how, for example, the addition of heat to a system reduces some kind of diffusion entropy: just look at how we purify silicon. *If* this “kinds of entropy” nonsense were valid, it couldn’t work. But it does – therefore your theory is wrong.

## 0 thoughts on “The Return of Granville Sewell”

1. Joe Shelby

Yet another piece of evidence…inspired by a George Will column where he says that “normally conservatism and common sense coincide” and then proceeds to take apart No Child Left Behind (he’s against it) using evidence-based critical reasoning. I’ve since then been inspired to basically say that “common sense says a lot of things, but the evidence says common sense is wrong.” I just need the time to put it all together, and this is another example to use.
Critical, reasoned, evidence-based thinking is, in fact, very UNcommon, but it is almost inevitably right.

2. Jud

Just wanted to note that the articles by Sewell that you’re citing are from 2000 and 2001. He’s still rehashing the same arguments today, of course (http://www.math.utep.edu/Faculty/sewell/articles/article.html).
The rehash pretty well boils down to “Well I guess natural forces such as selection can create differences in descendants (I still doubt that moth thing, but even I am not pigheaded enough to deny the development of antibiotic resistance in bacteria), but speciation is qualitatively different than mere differentiation, ’cause, um, ’cause I said so!”
He gives the same tired old “no intermediate forms” justification for his “speciation is another thing entirely” argument (yeah, a fossil Archaeopteryx was discovered in 1861, but cut these guys some slack, they may not have heard yet).
Of course, that reduces his Second Law argument to “Yeah, you can violate my misunderstanding of the Second Law in small ways [it would be rather hard for him to deny that atoms sometimes assemble into “more complex” molecules without intelligent intervention], but not in the big ways I don’t want it violated, like creating Life, especially new species!” This makes his Second Law not much of a Law at all, eh?

3. Astrochicken

A mathematician that attempts to evoke common sense in a reader is either lazy or wrong. For instance,
If you simply use common sense, it is obvious that P=NP.
Which am I?

4. Jud

Astrochicken: “If you simply use common sense, it is obvious that P=NP.”
Yah, but only if N=1. 😉

5. Blake Stacey

MarkCC wrote:

We can quite easily show how, for example, the addition of heat to a system reduces some kind of diffusion entropy: just look at how we purify silicon. If this “kinds of entropy” nonsense were valid, it couldn’t work. But it does – therefore your theory is wrong.

Delightful! Simply delightful! So, if Sewell’s nonsense had any validity, the computers he uses to blab about it could not exist. It’s amazing what a little fact can do for a discussion.
I’ll say this for empiricism: it works.

6. Chris Grant

Either you need to work on your cutting and pasting or Sewell needs to work on his stuttering. The first passage you quote has a first half that matches its second half.

7. MarkP

Isn’t this just yet another case where we have a critic of evolution speaking outside his field? If Sewell is truly a mathematician, then he should leave the physics to the physicists I agree with you Mark CC that Sewell’s statement about simplicity makes even my mere BS in math wonder what math he studied.
Just one more case of an evolution critic that literally does not know what he is talking about.

The sad thing that he has antiscience pages on the University of Texas El Paso site ( http://www.math.utep.edu/Faculty/sewell/articles/mathint.html ) and has printed this junk in math ed books ( http://www.math.utep.edu/Faculty/sewell/odes_pdes/appendixd.pdf ). Wiley prints anything, it seems. But I would like to read the MAA review of the book.
In what appears to be his latest drivel, http://www.math.utep.edu/Faculty/sewell/articles/article.html , he amongst other things cites a book from 1888 (!) to ‘define’ evolution science of today and an article from 1980 when the discussion about gradualism or punctuated equilibria was fierce to problematize todays science. (As we all know discussion and argument shows that a theory is alive and well.)

The sad thing that he has antiscience pages on the University of Texas El Paso site [link snipped to get through spam handlers] and has printed this junk in a math ed books ( http://www.math.utep.edu/Faculty/sewell/odes_pdes/appendixd.pdf ). Wiley prints anything, it seems. But I would like to read the MAA review of the book.
In what appears to be his latest drivel, http://www.math.utep.edu/Faculty/sewell/articles/article.html , he amongst other things cites a book from 1888 to define evolution science of today and an article from 1980 when the discussion about gradualism or punctuated equilibria was fierce to problematise todays science. (As we all know discussion and argument shows that a theory is alive and well.)