This is an analysis of a mendacious post by Harshman on the thread,
Re: Man closer kin to naked mole rats than bats
His modus operandi is to make evasive statements that impede
discussion of a very important paleontological issue. At first,
the communication-derailing nature of the first evasion is apparent to an attentive reader.
The "At first" is not redundant, because the first evasion is
essentially repeated far, far down, near the end of this post,
where almost no one could tell what is evaded -- or even that something IS being evaded!
In between, there come several evasions whose "payoff" in
derailment only becomes apparent further down, after the
evasion has exited the top of most readers' screens.
These evasions are examples of what I call polemical opportunism:
making baseless statements which sound reasonable, because the
things that show their baselessness are not in view.
On Thursday, July 14, 2022 at 11:00:55 PM UTC-4,
on
https://groups.google.com/g/sci.bio.paleontology/c/WP7JtxgJIio/m/siEAL7dvAwAJ
John Harshman wrote:
> On 7/14/22 4:45 PM, Peter Nyikos wrote:
> > On Monday, July 11, 2022 at 4:54:33 PM UTC-4, John Harshman wrote:
> >> On 7/11/22 11:52 AM, Peter Nyikos wrote:
> >>> On Thursday, July 7, 2022 at 10:11:54 PM UTC-4, John Harshman wrote:
> >>>> On 7/7/22 6:51 PM, Peter Nyikos wrote:
> >>>>> On Tuesday, July 5, 2022 at 11:54:14 AM UTC-4, John Harshman wrote:
> >
> >>>>>> If you want to present evidence that mesonychids, like whales,
> >>>>>> are nested within Artiodactyla, I would be interested.
> >>>>>
> >>>>> In my 1945 second edition of Romer's _Vertebrate_Paleontology_, p. 367, Fig. 277, on the left, there are
> >>>>> detailed drawings of the manus and pes of a mesonychid. Its astragalus looks
> >>>>> quite a lot like that of the Entelodont *Dinohyus,* shown on p. 452, Fig. 342 and that of the Camelid
> >>>>> *Poebrotherium,* p. 461, Fig. 348. All three astraguli look double-pulleyed to me.
Starting out sounding reasonable, Harshman nevertheless establishes a pattern of
never meaningfully engaging the scientific issue.
> >>>> I'm suspicious of this conclusion, which has never been mentioned in any
> >>>> phylogenetic analysis I know about.
The phylogenetic analyses with which Harshman is familiar were made long after 1966,
which is why I introduced the following reason:
> > There are good reasons, some mentioned below, and also the fact that Romer's 1945 book
> > had been superseded by the 1966 edition, and might not have kept the drawing of
> > *Synoplotherium,* but you've stubbornly resisted cracking that edition open:
Harshman suffers instant amnesia (or a lapse of reasoning ability)
about this newly introduced reason ("might not have kept...") below.
> >>> What kept you from opening your 1966 edition and looking up the drawings in there?
> >
> > <crickets>
> Because there wouldn't be much point to it.
So much for Harshman's alleged "suspicion." Once the 1966 edition came out,
active researchers would have naturally used it rather than the 1945 edition.
> >>> The index should have made it child's play.
> >>>
> >>> Don't you think *you* can recognize a double-pulleyed astragalus?
> >> I think so, though I may be wrong.
> >
> > Aren't you in touch with professional anatomists who could verify any guesses you make?
Harshman ducks this question, but his reply strongly suggests his answer is negative.
The sabotage involved comes far below.
> Well of course Pandora could do it, if she's paying attention to any of
> this stuff.
Harshman's "of course" is not evident from anything I've seen from Pandora.
<snip to get to the derailment payoff, beginning with a higly insulting false dichotomy>
> >>>> Either you are wrong about this or
> >>>> mammal paleontologists who have done the work are all incompetent.
> >>>
> >>> If these are the only alternatives you could think of, then you must be suffering from
> >>> a long lack of meaningful discussions with research biologists *qua* research biologists.
> >
> > When I remided you of this comment yesterday, you thumbed your nose at it.
> And rightly so.
On the contrary, the evasive reply above suggests that I made
an on-target guess, even *without* the opening "If" clause.
But the "If" clause is devastating, and Harshman thumbs his nose at
the consequences below:
> > But you ignored what I had subsequently written:
> >
> >>> I thought of two others right off the bat:
> >>>
> >>> 1. *Synoplotherium* was found to have been mis-classified after Romer's 1945 edition.
> >>>
> >>> 2. The reconstruction to which I referred was inaccurate. [The reconstruction of the skull
> >>> of Archaeopteryx in the same edition was criticized in a peer-reviewed paper comparing
> >>> it with modern reconstructions of the Eichstatt specimen and the London specimen.]
> >
> >> Both possible.
> >
> > And neither possibility occurred to you? Such incompetence!
Harshman ignores the conclusion:
> You win some, you lose some.
Harshman has lost a big chance to show competence at scientific reasoning.
Harshman has won at derailing discussion of alternatives of the present view
of *Synoplotherium*, one of which is that is a mesonychid closer to cetacean ancestry
than heretofore suspected.
He continues with this "victory" below. <snip for focus>
> >> Can we at least agree that, based on the failure of
> >> paleontologists to note it (and the excitement of paleontologists upon
> >> discovering whale astragali), that no mesonychid is known to have a
> >> double-pulley astragalus, despite anything you may have found in Romer 1045?
> >
> > We have no business agreeing on such a thing until you take a look
> > at your 1966 edition and tell us your opinion of what you see.
Again derailing the issue with an implicit refusal to look, and worse:
> Not relevant. What Romer said in 1966 is not relevant to what
> paleontologists notice thirty or more years later.
Completely illogical, because the issue is what Romer might NOT have
included in the edition. Harshman is taking advantage of the way
this fact is only evident far above, where I wrote:
"Romer's 1945 book had been superseded by the 1966 edition,
[which] might not have kept the drawing of *Synoplotherium,*..."
> > What keeps you from looking at it? Afraid it might cramp your style?
> Notice how you keep accusing me of being afraid of this or that?
Notice how Harshman perversely equates a lighthearted question with a nasty
accusation, thereby diverting attention from his evasion of the first question.
Harshman capitalizes on his chicanery with a baseless insult,
further diverting attention:
> Bad habit, which you should strive to restrain.
The analysis of the rest of Harshman's post will be
continued in my next post to this thread. It will include
parts that I snipped for the sake of focus, so
a third post may be necessary.
Peter Nyikos
Professor, Dept. of Mathematics -- standard disclaimer--
University of South Carolina
http://people.math.sc.edu/nyikos