Skeptophilia (skep-to-fil-i-a) (n.) - the love of logical thought, skepticism, and thinking critically. Being an exploration of the applications of skeptical thinking to the world at large, with periodic excursions into linguistics, music, politics, cryptozoology, and why people keep seeing the face of Jesus on grilled cheese sandwiches.

Friday, December 23, 2022

Tell me lies

In Jean-Paul Sartre's short story "The Wall," three men are captured during the Spanish Civil War, and all three are sentenced to die if they won't reveal the whereabouts of the rebellion's ringleader, Ramón Gris.

The main character, Pablo Ibbieta, and the other two men sit in their jail cell, discussing what they should do.  All three are terrified of dying (of course), but is it morally and ethically required for them to give up their lives for the cause they believe in?  When is a cause worth a human life?  Three human lives?  What if it cost hundreds of lives?

Pablo's two companions are each offered one more chance to rat out Ramón, and each refuses.  Pablo hears the noises as they're dragged out into the prison courtyard, stood up against the wall, and shot to death.

Now it's just Pablo, alone in the cell.

Thoughts race through his head.  Now that it's just him, if he sells out Ramón, there won't be any witnesses (or at least any on the side of the rebellion).  Who'll know it was him that betrayed the cause?

After much soul-searching, Pablo decides he can't do it.  He has to remain loyal, even at the cost of his own life.  But he figures there's nothing wrong with making his captors look like idiots in the process.  So he tells them that Ramón Gris is hiding in a cemetery on the other end of town.  He laughs to himself picturing the people holding him, the ones who have just killed his two friends, rushing off and dashing around the cemetery for no good reason, making fools of themselves.

His captors tell him they're going to go check out his story, and if he's lying, he's a dead man (which Pablo knows is what will happen).  But after a couple of hours, they come back... and let him go.

He's wandering around the town, dazed, when he runs into a friend, another secret member of the rebellion.  The friend says, "Did you hear?  They got Ramón."

Pablo asks how it happened.

The guy says, "Yeah... Ramón was in a friend's house, as you know, perfectly safe, but he became convinced he was going to be betrayed.  So he went and hid out at the cemetery.  They found him and shot him."

The last line of the story is, "I sat down on a bench, and laughed until I cried."

It's a sucker punch of an ending, and raises a number of interesting ethical issues.  I used to assign "The Wall" to my Critical Thinking classes, and the discussion afterward revolved around two questions:

Did Pablo Ibbieta lie?  And was he morally responsible for Ramón Gris's death?

There's no doubt that Pablo intended to lie.  It was accidentally the truth, something he only found out after it was too late.  As far as his responsibility... there's no doubt that if he hadn't spoken up, if he had just let the guards execute them as his two friends did, Ramón wouldn't have been killed.  So in the technical sense, it was Pablo who caused Ramón's death.  But again, there's his intent, which was exactly the opposite.

The questions don't admit easy answers -- as Sartre no doubt intended.

All lies are clearly not morally equivalent, even barring complex situations like the one described in "The Wall."  Lies to flatter someone or protect their feelings ("That is a lovely sweater") are thought by most people to be less culpable than ones where the intent was to defraud someone for one's own gain.  And as common as harmful lies seem to be, some recent research came up with the heartening results that we lie far more often for altruistic reasons than for selfish or vindictive ones.


A recent paper in the Canadian Journal of Behavioural Science, by Jennifer McArthur, Rayanda Jarvis, Catherine Bourgeois, and Marguerite Ternes, found that while lying in general is inversely correlated with measures of honesty and conscientiousness -- unsurprising -- the most common motivations for lying were altruistic reasons, such as protecting someone's feelings or reputation, and secrecy (claiming not to know something when you actually do).

So maybe human dishonesty isn't quite as ugly and self-serving as it might appear at first.

Note, however, that I'm not saying even the altruistically-motivated lies McArthur et al. describe are necessarily a good thing.  Telling Aunt Bertha that her tuna noodle olive loaf was delicious will just encourage her to inflict it on someone else, and giving people false feedback to avoid hurting their feelings -- especially when asked for -- can lead someone astray.  But like the far more serious situation in "The Wall," these aren't simple questions with easy answers; ethicists have been wrestling with the morality of truth-telling for centuries, and there's never been a particularly good, hard-and-fast rule.

But it's good to know that, at least when it comes to breaking "Thou shalt not lie," that for the most part we're motivated by good intentions.

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Thursday, December 22, 2022

Enough already

I'm beginning to think that the aliens who are running the computer simulation we've all been trapped in for the past few years have gotten bored and/or stoned, and now they're just fucking with us.

I say this because of recent developments in American politics, which was weird enough already.  By now you've undoubtedly heard about Donald Trump spending a couple of weeks hyping up a "big exciting announcement" both on his bizarre site "Truth Social" and on Twitter (now that Elon Musk has seen fit to allow him to reprise his award-winning role as Cheeto von Tweeto).  A lot of folks thought it might be some sort of serious political strategy move, such as revealing who he had chosen as his running mate for the 2024 presidential election.  This, of course, could have been a bizarre spectacle as well; speculation was running rampant that he would choose Kari Lake, the unsuccessful Republican candidate for governor of Arizona, whose campaign slogan was, "I DID TOO WIN!  YOU'RE A BUNCH OF BIG STUPID LOSERS!  WAAAAAAAH!"

Which makes me wonder how these people don't see the contradiction between their shrieking at the education system as fostering an "everybody gets a gold star" mindset, and at the same time stating that their favorite candidate in an election should be declared winner despite getting way fewer votes.  Cognitive Dissonance "R" Us, these people.

But I digress.

Anyhow, by now you know that Trump's "big exciting announcement" was that he was selling NFT digital trading cards of "art" (I use the term loosely) of himself dressed up like a superhero, a cowboy, a prizefighter, and so on, at $99 a pop.  My first thought was, "Who in their right mind would spend their hard-earned cash on this?  This is the dumbest idea he's come up with yet."

"Ha ha," said the aliens running the simulation.  "A lot you know."  All forty-five thousand cards sold within twelve hours.

This didn't stop the good folk of the internet from lobbing enormous ridicule bombs Trump's way.  One wag called the cards "MAGA the Gathering."  Another labeled them "Brokémon Cards."  Then the digital artists got involved, and created their own, more realistic Trump trading cards, such as the following:


Then we had the fight between one-time allies Lauren Boebert and Marjorie Taylor Greene, who have been sparring over support for Speaker of the House candidate Kevin McCarthy.  Boebert suggested that she might have qualms about supporting McCarthy's bid -- evidently she thinks he's too moderate -- and Greene retorted that Boebert had turned her back on not only McCarthy, but Donald Trump and the Republican party.

Boebert fired back with something that I am quoting here verbatim, because otherwise you flat out won't believe me: "Well, you know, I’ve been aligned with Marjorie and accused of believing a lot of the things that she believes in.  I don’t believe in this, just like I don’t believe in Russian space lasers, Jewish space lasers, and all of this."

*brief pause while the aliens running the simulation take another long toke*

Then there was Lavern Spicer, unsuccessful candidate for Representative of Florida's 24th District, who spoke out vehemently against people introducing themselves including the pronouns they wish others to use for them, and made two statements on Twitter -- one, that there are "no pronouns in the Bible," and the other that "Jesus didn't use pronouns."

Is it just me, or do these people honestly have no idea what a pronoun is?

Here's just one example of a passage from Lavern Spicer's pronoun-less version of the Bible, from Luke 6:32:
If Lavern loves people loving Lavern, that is no credit to Lavern. For even sinners love people loving sinners.  And if Lavern does good to people doing good to Lavern, that is no credit to Lavern either.  For even sinners do good to people doing good to sinners.

It reminds me of the Seinfeld episode about the guy who always talks about himself in third person, and George Costanza picking up the habit.  "George is not happy." 

In any case, I'd like to put the aliens on notice that we down here on Earth are getting kind of fed up with all this.  I mean, enough already.  I know it must be fun watching us, especially the marginally rational fraction of humanity skittering about trying to figure out how in the hell to make sense of the insane chaos we're immersed in, but really.  Y'all have had your laughs at our expense.

Time to put the bong away, shut off the simulation, and call it a day.

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Wednesday, December 21, 2022

Mammals down under

Sometimes all it takes is one new discovery to send scientists back to the drawing board.

Of course, as astrophysicist Neil deGrasse Tyson correctly points out, scientists are always at the drawing board, or should be.  "If you're not at the drawing board," he says, "you're not doing science."  But still, it does seem sometimes like things are pretty well figured out, and then...

... boom.

There was a "boom" moment in the field of mammalian evolution this week, delivered by a paper in the journal Alcheringa: The Australasian Journal of Palaeontology.  The authors -- led by the brilliant paleontologist and polymath Timothy Flannery, of the University of Melbourne -- describe a fossil find that would seemingly be of interest only to people fascinated by minutiae of paleontology; a jawbone of a tribosphene, a proto-mammal with distinctive triangular, three-pointed molars, from the early Jurassic Period in Australia.

The problem is, it kind of shouldn't have been there.  Tribosphenes, which are in a group that is ancestral to both marsupial and placental mammals, were thought to originate in Laurasia, the northern half of the (at that point, split) supercontinent Pangaea.  (Laurasia comprised land that is now found in North America, Europe, and Asia.)  Australia, on the other hand was part of the southern half of Pangaea, called Gondwana, along with Africa, Antarctica, and South America.

This origin for the tribosphenes was considered so certain that they used to be called boreosphenes -- from the Greek word Βορέας, which was the name of the god of the north wind.

Guess it's a good thing they changed the name.

Eomaia, an early tribosphene mammal from China [Image licensed under the Creative Commons Nobu Tamura (http://spinops.blogspot.com), Eomaia NT, CC BY-SA 3.0]

There's no doubt that there were tribosphenes in Laurasia, too; one of the earliest, Tribactonodon, can be found in the Lower Cretaceous Durlston Formation in England.  (Others have been found in Mongolia and in Portugal.)  The idea was that they started in Laurasia and only later spread southward to Gondwana -- so Australia's iconic marsupials originally started out much farther north.

The discovery of a tribosphene in Australia sixty million years earlier than that indicates that some rethinking may be in order.

"I was re-analyzing these fossils that turned up in Victoria from the age of dinosaurs," Flannery said, in an interview with Australian Geographic.  "And then I started looking more widely for similar sorts of fossils found elsewhere and it turned out all of them were in the southern hemisphere and all are Jurassic or Cretaceous in age [from 199–66 million years ago]...  And we realized the thing that unites all these Southern Hemisphere fossils is they have these very strange, complicated molars that let the animals puncture shear and crush, all at the same time, what they were eating.  I resisted the conclusion as long as I could, but the evidence is compelling.  These shrew-like animals from Australian are actually the ancestors of both the earliest placentals and the earliest marsupials."

"We’ve been able to show that the relevant fossils that look like they are anatomically likely to be close to the common ancestor of marsupials and placentals are found exclusively in the southern continents and are from an older time period than the oldest mammal similar fossils seen the north," said Kristofer Helgen, who co-authored the paper.  "And that indicates these groups of mammals had their ancestry in the southern continents at an earlier time period and then later colonized the northern continents.  It absolutely turns our previous understanding on its head."

Which is tremendously exciting.  Far from being frustrated by stuff like this, these are the moments scientists live for -- when they find out that our previous understanding is incomplete, skewed, or flat wrong.  That's when the real process of discovery happens, and often when we gain a lens on a bit of the universe we weren't seeing clearly.

It's why I get so profoundly frustrated with the ridiculous attitude, "why study science?  It could all be proven wrong tomorrow."  To me, that's a completely backwards way of looking at it.  The truth is that science, unlike just about every other path to knowledge humans have ever utilized, has the ability to self correct.  When scientists find out a bit of our understanding is wrong, they neither throw their hands up in despair, nor do they double down on the error; they take steps to fix it.

And isn't that better than remaining in a state of error, incomprehension, or ignorance?

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Tuesday, December 20, 2022

Language machines

If you've ever used Google Translate, you've probably noticed that it can be a little wonky.

Take, for example, the anecdote about the French guy who was wooing an American woman long-distance, and texted to her, "Prends une photo coquine pour moi."  ("Take a naughty picture for me.")  The woman wasn't certain what that meant, so she popped it into Google Translate, and was told it meant, "Take a photo for me, slut."

I think my favorite, though, is some feedback that a company called Koyu Matcha Green Tea received via their website, from a customer in Finland.  When they ran what the customer wrote through a Finnish-to-English Google Translate, it came out as the following:
If it resonated with cold to the bone?  Matcha Latté is guaranteed fireman, green tea with hot steamed milk.  Behold, thou hast already tasted.
Um... thanks?  We think?

The difficulty is that languages are complex entities, full of idioms and peculiarities and exceptions, so trying to find a mechanistic, totally rule-based way to characterize them is somewhere beyond tricky.  But because of the work of a Ph.D. student at the University of Cambridge, we have come one step closer to doing exactly that -- at least for Sanskrit.

About 2,500 years ago, a man named Dakṣiputra Pāṇini living in what is now northwestern Pakistan wrote a work called Aṣṭādhyāyī, which created a set of rules for the morphology -- the way words, prefixes, suffixes, and so on combine -- of the Sanskrit language.  An example of linking together these fragments, called morphemes, in English is the word incomprehensibly -- made up of in- (prefix meaning "not"), comprehend (stem of the word, altered to replace /d/ with /s/), -ible (suffix meaning "capable of"), and -ly (adverbial marker), in that order.

Imagine trying to come up with a list of rules for all the ways morphemes can combine in English, such that the rules only produced well-formed words and not garbled messes like iblecomprehendlyin.

That's what Pāṇini tried to do for Sanskrit.

The problem is that Pāṇini's rules seemed sometimes to lead to self-contradictions.  Given a particular combination of morphemes, there are often two or more rules that apply, so which should you use?  Linguists analyzing the rule-set discovered that Pāṇini had written a "metarule" -- a rule determining how other rules should be applied -- which said that if two rules seem to conflict, the "later rule should take precedence."  Everyone had interpreted this to mean that the one mentioned later in the book was the more important.

But that sometimes led to ungrammatical words.  So something was off, but what?

Enter Cambridge student Rishi Rajpopat, who had been toiling over Pāṇini's rules for months.  Then he had a brainstorm; what if the problem was that the metarule itself had been mistranslated?  He altered the metarule to read that if two rules are in conflict, the one that applies to the latter part of the word (the suffix) takes precedence over the one that applies to the first part of the word (the stem).

With that one change in interpretation, Pāṇini's rule system works to combine morphemes and produces grammatically-correct words almost one hundred percent of the time.

Which, of course, is a cause for much rejoicing amongst both linguists and people who are attempting to create high-quality translation software.

I wonder, though, how any such attempt would fare for English.  English is an amalgam of a Germanic root language, with heavy borrowing from French, Latin, and Spanish, and less-frequent (but still significant) borrowing from Old Norse, Italian, Greek, Dutch, Gaelic, and several Indigenous American languages.  This has introduced spellings, pronunciations, and morphologies that defy easy characterization.


Even some of the simple rules you learned in elementary school can't be applied with anything like real consistency.  "I before e except after c" -- unless your weird foreign neighbor Keith forfeits eight beige sleighs to a feisty caffeinated weightlifter.

You see the difficulty.

So as much as I'm impressed by Rajpopat's accomplishment, I don't think it's going to go very far toward fixing Google Translate's problem.

No matter.  The delight of being told the tea is so good it's "guaranteed fireman" makes up for any potential awkwardness incurred because you accidentally called your girlfriend an unpleasant name while attempting to initiate sexytimes.  You gotta take the good with the bad.

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Monday, December 19, 2022

Ken Paxton's registries

When the Nazi party first came into power in Germany in the mid-1930s, one of the first things they did was to dramatically improve the efficiency of record-keeping, especially with regards to people they considered "undesirables."

A 1946 report on their practices by Robert M. W. Kempner, which appeared in the Journal of Criminal Law and Criminology, is as impressive as it is horrifying. Kempner writes:
The most important are the Gestapo card indices: the register of persons politically undesirable to the National Socialist regime, such as former members of democratic parties, lodges, etc.  This register consists of five different sets of alphabetical card indices for (1) highly dangerous persons, (2) less dangerous persons, (3) dangerous persons, (4) Jews, (5) part Jews (Mischling).  These card indices were kept in the offices of the Secret Police (Gestapo), i.e., in the central headquarters of the Gestapo in Berlin, Prinz Albrechtstrasse. Duplicates were kept by the supervisory offices (Staatspolizeileitstellen) or the approximately 100 district offices of the secret police (Staatspolizeistellen) which are located in the larger cities throughout Germany, e.g., in Munich, Stuttgart and the seats of the district governments...  The index cards are brown for males and green for females.  The first item is year, day, month, and place and county of birth.  Then follow the statements about occupation, name, marital status, school, and professional education, examinations passed, residence in foreign countries, knowledge of foreign languages, special abilities, service in the armed forces, or in the labor service, and residence...  Cards of Jews are marked by black index tabs.
The horrors of the Nazi regime and the Holocaust were only possible because of the extensive records the government had on damn near everyone in the country.

You may be thinking, by this point, "how is this so different from the records governments today keep on citizens?  Most of this same information is now routinely kept by government agencies, and no one bats an eyelash."  It's a reasonable question.  Census and tax forms, drivers' license registration, school registration, job applications... unless you somehow have avoided all that, which is hard to imagine, you're a known quantity.

The difference, of course, is intent.  What do the governments of the United States and other democracies intend to do with the information they have?  My own probably Pollyanna-ish idea is that most of the time, the answer is "nothing."  As long as you pay your taxes and abide by the law, the powers-that-be have neither the time nor the interest to worry about what color your eyes are, what your marital status is, or what exactly you're doing.

It's the exceptions that are downright terrifying.  Which brings us, unsurprisingly, to Attorney General Ken Paxton of Texas.

It was just revealed that earlier this year, Paxton demanded a list of all of the people in the state who requested a change in their gender designation on their drivers' licenses.  In other words, trans individuals who wanted to have legal documentation of their gender identity.  It's disingenuous not to see the comparison to the "black index tabs" on Jewish registration cards in Nazi Germany.  Add to this the fact that earlier this year, Texas passed one of the harshest anti-trans laws in the nation -- it explicitly forbids gender-affirming medical treatment for teenagers, and mandates criminal prosecution and jail time not only for medical professionals who carry it out, but for teachers, counselors, therapists, and so on (people considered "mandated reporters" for child abuse) if they find out about a teenager's trans status and fail to notify the authorities.

Don't tell me that LGBTQ+ people are "overreacting" if they're terrified by Paxton's demand for a trans registry.  And if you think I'm engaging in hyperbole by comparing it to the Nazi registries, you're being willfully blind.

"This could be a mass outing of a whole bunch of trans people because a lot of us change our documents and then choose to live in private," said Eden Rose Torres, a trans Texan who chooses to be out.  "We don't have to disclose our transness."


The only good news is that the request from Paxton's office was denied -- but not on the grounds of its being potentially used to harm trans Texans and the people who aid them, but because of practicality.  "Ultimately, our team advised the AG’s office the data requested neither exists nor could be accurately produced," said Travis Considine, of the Department of Public Safety, to which the demand had been directed.  "Thus, no data of any kind was provided...  It [would] be very difficult to determine which records had a valid update without a manual review of all supporting documents."

What really needs to happen, of course, is that Paxton be required to produce, in writing, a statement (1) justifying why he has the right to the information, and (2) outlining in detail what he intends to do with it.  Not, frankly, that I trust Paxton as far as I could throw him.  But at least then it would push him into defending his actions, rather than what's happened thus far, which is giving him carte blanche.

The refusal of the DPS to cooperate is not going to be the end of this.  People like Ken Paxton are never, ever going to give up their campaign against LGBTQ+ people, despite the fact that all we queer people want is to live our truth in peace and safety, the same as straight White Americans do, and to be in control of when and to whom we reveal our private lives.  Paxton sees himself as the leader of a religious-inspired crusade, and if he succeeds with his attempt at a trans registry, that's only going to be the beginning.

We have only to look back ninety years to see where this kind of thing can lead.

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Saturday, December 17, 2022

Ignorant and proud of it

Way back in 1980, biochemist, writer, and polymath Isaac Asimov wrote something that is even more accurate today than it was back then:

There is a cult of ignorance in the United States, and there always has been.  The strain of anti-intellectualism has been a constant thread winding its way through our political and cultural life, nurtured by the false notion that democracy means that "my ignorance is just as good as your knowledge."

I remember the first time I ran headlong into the bizarre American "ignorant and proud of it" attitude Asimov describes, during the presidential campaign of George W. Bush.  Even Bush's supporters admitted he wasn't an intellectual; I heard one person say he was voting for Bush because he wanted someone in the White House who was one of the "common folk," someone he would want to sit down and have a pint of beer with.  I responded, in considerable bafflement, "Don't you want the president to be smarter than you and I are?  I know I'm not smart enough to run the country."

His response was that the intellectuals are out of touch, and don't understand on a visceral level the problems ordinary people face.  This, I have to admit, contains a kernel of truth.  Politics is a money game, and most (not all; I'm sure you'll find counterexamples) elected officials come from some level of wealth and privilege.  And it's true that this privilege can create a set of blinders.  People who have never been down to pennies at the end of a pay period -- as I, and many others, have -- don't understand what it's like for financial worries never to be far from your mind, twenty-four hours a day.

The problem, of course, is that while an "ordinary person" might empathize with the plight of other ordinary people, that doesn't mean (s)he knows how to fix it.  Experiencing a problem doesn't mean you have a clue how to solve it.

But as Asimov pointed out, the "we're equal as people, so my ideas are as good as yours" nonsense is woven deeply into the American psyche, and the result has been that increasingly you run into people who seem to be not only oblivious to their own ignorance, but actively proud of it.  I was just discussing this with my athletic trainer, Kevin, this week.  One of the points I made is that I know there are a lot of areas about which I am ignorant.  The internal workings of cars, for example.  I have only the vaguest notion of how automobile engines work -- which is why when something goes wrong with my car, I go down to my mechanic and say, "Car not go, please fix."  What I don't do is start blathering on to my friends and acquaintances about carburetors and alternators and fuel pumps, and getting all defensive when one of them tells me what I'm saying is bullshit.

This, surprisingly, is often not the approach people have.  Kevin told me he was at a party a while back, and someone was pontificating about how the problem with the COVID-19 vaccination was that it was a vaccine.  On the other hand, he said, he was fine with getting a flu shot, because that wasn't a vaccine, it was a shot.

Kevin said, "The flu shot is a vaccine, too."

The guy responded, "No, it's a shot.  COVID is a vaccine, which means it does stuff to your immune system."

A little goggle-eyed, Kevin said, "But... doing stuff to your immune system is what shots are supposed to do."

Undeterred, the guy said, "No, that's vaccines.  The flu shot just stops the flu virus from making you sick, it doesn't mess with your immune system."

At that point, Kevin decided that the guy had the IQ of a peach pit and gave up.

What gets me about this is not that some person had a goofy misconception about something.  We all have goofy misconceptions about some things, and a complete lack of knowledge about others.  But -- hopefully -- most of us know better than to broadcast our ignorance in front of a large group of people.

Or on a major news network.  Just a couple of days ago, Fox News commentator Tucker Carlson, who is himself no stranger to broadcasting his stupidity, had a guest who made Carlson's own beliefs look positively Ph.D.-worthy by comparison.  The guy's name is (I'm not making this up) Joe Bastardi, and you'll get a good idea of his scientific credibility when I tell you that he's the author of a book called The Weaponization of Weather in the Phony Climate War.  (He chose this title when it narrowly edged out his second-favorite choice, which was 99% of the Earth's Scientists Are Big Dumb Poopyheads.)  But what he said went way beyond just claiming that "the climate's just fine, keep on burnin' those fossil fuels."  Here is a direct quote, which (once again) I swear I'm not making up:

I’ve been giving [climate change policy] a lot of thought today, because I had to drive from Iowa City all the way to Pittsburgh, and when I went by South Bend, oddly enough it hit me.  There are three possibilities here, in my opinion, just looking at this, okay.

First is, they’ve all got climate vaccines.  We don’t know about them, but unlike the COVID vaccine, they actually work, so whatever they do, they’re immune from it.  So that’s a possibility.  That’s a long shot.

The second, Tucker, is, that if bad weather stops air travel, and it stops car travel, if you can cause more bad weather, right, then guess what?  Everybody can’t drive.  For instance, next week, and the week after?  Watch how much bad weather comes into the United States.  It’s going to be the coldest, snowiest period around the Christmas time since 2000.  So we’re gonna see planes, and trains, and all these other things shut down.  So if you just dump all this CO2 in the atmosphere, your assumption is, hey, CO2 causes bad weather, if I could cause more bad weather, then guess what?  Other people won’t be able to fly, and we’ll have less CO2 emissions.

Or the third possibility, exactly what you said: it’s a phony climate war, it’s fraudulent.  When we talked back in July, we talked about how it’s going to get cold earlier this year across the United States, that has nothing to do with CO2, what it has to do is the natural cycles of the weather, and what happens is these people are taking advantage of people who fall prey to this, and this is what they’re doing.  There’s no logic or reason for it except they are trying to establish a caste system that destroys the greatest experiment of freedom and individuality, which is this country.

I have a few responses to this, to wit:

  1. How the fuck do you vaccinate someone against the climate?
  2. Winter is frequently the coldest, snowiest part of the year in the United States.  That's because we're in the Northern Hemisphere and that's how seasons work.
  3. So, what he's saying is that the environmental scientists have created the whole climate change thing in order to destroy the United States.  Even though a great many of them live here.  Because that makes total sense.
  4. Does he really think that somehow, the climatologists are engineering bad weather across the entire United States?  Simultaneously?  How are they doing this, using magical laser beams from space, or something?
  5. No, wait -- it's not magical laser beams from space, he says.  It's something way less plausible than that.  What we're gonna do is dump carbon dioxide into the air to make travel difficult, which will stop travel, which will cause us to emit less carbon dioxide. 
Now that's what I call a cunning plan.


And through the entire conversation, Tucker Carlson sat there, nodding sagely, as if what Bastardi was saying was nearing Stephen Hawking levels of brilliance, instead of doing what I'd have done, which is to say to him, "What is clear from this conversation is that if the government taxed brains, you'd get a refund."

Which explains why I am not a commentator on Fox News.

So.  Yeah.  For some reason, there are people who are abjectly ignorant, and yet who consider it critical that the entire world finds out about it.  It all brings back the well-known aphorism -- one of my dad's favorites --- that "it's better to keep your mouth and be thought a fool than to open your mouth and prove it."

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Friday, December 16, 2022

Bugs of unusual size

Although you don't tend to hear much about it, the Ordovician Period was a very peculiar time in Earth's history.

From beginning (485 million years ago) to the end (444 million years ago) it experienced one of the biggest global climatic swings the Earth has ever seen.  In the early Ordovician the climate was a sauna -- an intense greenhouse effect caused the highest temperatures the Paleozoic Era would see, and glacial ice all but vanished.  By the end, the center of the supercontinent of Gondwana was near the South Pole, and glaciers covered much of what is now Africa and South America, resulting in a massive extinction that wiped out an estimated sixty percent of life on Earth.

At this point, life was confined to the oceans.  The first terrestrial plants and fungi wouldn't evolve until something like twenty million years after the beginning of the next period, the Silurian, and land animals only followed after that.  So during the Ordovician, the shift in sea level had an enormous impact -- as the period progressed and more and more ocean water became locked up in the form of on-land glacial ice, much of what had been shallow, temperate seas dried up to form cold, barren deserts.

But during the beginning of the period, life thrived in the warm oceans, giving rise to huge ecosystems based on reef-building corals and sponges.  Just as today, back then coral reefs provided habitats to a tremendously diverse community, and fossil beds like the Fezouata Formation of Morocco give us a glimpse of a strange and wonderful world.

Here's one of the exceptionally well-preserved fossils from Fezouata, a marrellomorph arthropod called Furca mauritanica:

[Image licensed under the Creative Commons Didier Descouens, Furca mauritanica MHNT, CC BY-SA 3.0]

And here's a reconstruction of another one from the same group, the bizarre Mimetaster hexagonalis (the genus name means "mimics a starfish"):

[Image licensed under the Creative Commons Franzanth, Mimetaster hexagonalis reconstruction, CC BY-SA 4.0]

These arthropods, more closely related to trilobites than to any living species, were one of the dominant groups during the temperate early Ordovician, but had vanished almost entirely during the icehouse conditions of the end of the period.  

The reason this comes up is because of a paper out of the University of Exeter about further research into the fossils of the Fezouata Formation.  And this study has turned up something phenomenal -- another kind of marrellomorph arthropod related to Furca and Mimetaster that was something on the order of two meters long.

That is one big swimming bug.

I found this a little surprising, above and beyond simply being shocking because it's enormous.  As far as I understand physical chemistry, I would think that the greenhouse conditions of the early Ordovician implied two things: (1) higher carbon dioxide and lower oxygen levels, both in the atmosphere and the oceans; and (2) the warmer temperatures making what oxygen there was less soluble in water.  Both of these would lead to more hypoxic conditions, and -- again, as far as my layperson's understanding goes -- should result in generally smaller body size, especially in arthropods.

Arthropods have a couple of limitations that keep cockroaches from getting big as elephants (despite what you might have seen in any number of bad 1950s horror movies).  First, they aren't built to support a large body mass; a terrestrial insect expanded to enormous size, with its bodily proportions left intact, wouldn't be able to stand up, much less move.  This disadvantage is somewhat offset by living in the water, where buoyancy supports the body's mass.  (Note how much bigger oceanic mammals can get than terrestrial ones do.)

Second, and more apposite to this discussion, arthropods are limited by their rather shoddy respiratory systems.  They don't circulate oxygen using their blood, as we do; oxygen is absorbed passively, through channels called tracheal tubes (in terrestrial arthropods) and feathery gills (in aquatic ones).  Gills do have an edge, efficiency-wise, over tracheal tubes, but are working against water's much lower oxygen concentration (way less than one percent, as compared to air at sea level, which averages around twenty-one percent).  This is why terrestrial animals drown; their lungs are just not efficient enough to extract oxygen from a fluid that has so little of it.

And, as I said before, the likelihood is that the conditions of the early Ordovician would likely have combined to cause a far lower dissolved concentration in the oceans than we have now.

So how did marrellomorphs get so big?

At the moment, we don't know.  But the new study has shown that the early Ordovician seas were even weirder than we'd thought, with arthropods swimming around as long as a fully-grown human is tall.

No idea what those things ate, but if I ever get in a time machine and go back then, I'm sure as hell going to be careful if I go swimming.

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