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.

Monday, March 17, 2025

Resonant nonsense

One of the problems with targeted-advertisement algorithms is that they're awfully good at picking up on words like "homeopathy" and "crystal healing" and "chemtrails" and not so good a picking up on words like "bollocks" and "lunacy" and "absolute horseshit."

The result is that my work here at Skeptophilia leaves me foundering in a sea of wingnuttery.  The "Recommended For You" pages I get on Facebook are particularly bad, especially given that these days, the way Facebook works is you get twenty "Sponsored" and "Recommended" posts for every one that's from an actual friend, so trying to find out what's going on with your pals requires wading through all the stuff Mark Zuckerberg thinks you desperately need to see but almost certainly would prefer not to.

This is the only possible explanation for how Facebook ended up recommending a page to me called "Schumann Resonance Today."  Those of you who are aficionados of obscure atmospheric phenomena probably know that the Schumann resonances are the resonant radio frequencies of the atmosphere -- similar to how a plucked guitar string has a natural frequency it "wants" to oscillate at (corresponding to the pitch you hear when you pluck it).  Just like the guitar string needs something to set it in motion, the Schumann resonances do, too; in this case, lightning.  Lightning releases not only light and heat and compression waves (sound), but radio waves, and it turns out that those at 7.83 Hertz have the right wavelength to resonate and form a standing wave in the upper atmosphere.  (Once again similar to a guitar string, the atmosphere also has "overtones" -- progressively weaker harmonics at 14.3, 20.8, 27.3, and 33.8 Hertz.)

And that's all they are.  Nothing mystical, nothing that has any effect on humans.  In fact, they weren't even discovered until 1952.

But then you look at the "Schumann Resonance Today" page on Facebook, and... well, let me give you a taste of it.

Each post starts with a graph that looks like this:


And a headline like "WARNING: THE SCHUMANN RESONANCE HAS EXPLODED!!!" followed by "Rolling blackouts expected!  We warned you this was coming!"

If you look at the comments section (Not directly!  Always wear eye protection!) you find out that literally hundreds of people have noticed the explosion of the Schumman resonance, because they report:

  • having insomnia
  • sleeping way more than usual
  • having tons of nervous energy
  • having no energy at all
  • more "glitches in the matrix" than usual
  • fewer "glitches in the matrix" than usual
  • pets acting weird

As far as the last-mentioned, I don't know about your pets, but my pets kind of act weird 24/7/365.  In fact, I'd notice it if they stopped acting weird.  Just yesterday morning, I heard "BANG (whimper) BANG (whimper) BANG" so I got up to go see what was going on.  Turns out it had started to rain and Jethro wanted to come inside, and he wanted to bring along his favorite stick, but when it was in his mouth he didn't fit through the doggy door.  So his solution after three or four unsuccessful tries was to sit on the patio in the rain and feel sorry for himself until I came downstairs and rescued him.

But I digress.

Anyhow, the Schumann resonance people are deadly serious that a standing radio wave in the upper atmosphere is somehow impacting their lives.  Here are a few selected comments, which I swear I am not making up:

This full moon and static air has me AWAKE.  I have been manic for a week now.

I’m sleeping deep; inward struggles (46+ years worth due to severe trauma) have been lifted; I’m more focused, hopeful, and optimistic; I feel a spine chilling shift in my spirituality and empathic abilities (ascending) … plus so much more! I’m eternally grateful

Grounding & aligning your central axis with the earth’s supports the integration of the energy

I woke up too early yesterday and then slept great last night. Ringing in my ears in different tones at different times and in different ears. Some days it's more prevalent than others. I guess it's a roller coaster for all of us

These vibrational frequencies affect some people more than others.  Sometimes the answer is increasing your own vibration out of the range of the resonance.  If that doesn't work, sleeping on a grounding sheet can help. 

Has ANYONE noticed there [sic] certain gifts they have, they have gotten stronger?  I play a game with cards, I put a few down and try n guess what’s there.  I’ve been playing around with it bcuz I feel myself smarter?  Every time I pick one I have been spot on.  Anyone else notice lil differences that are big ?

I got a beautiful flash premonition of my next step to my higher life, I received a download that shows me my path.  It was a beautiful experience.

Can someone explain to me what this means?  And if it means it’s time to buy an another gun?

Oh dear lord no please don't buy another gun.  And as far as the rest of you people -- well, I'm happy for your ascending empathic abilities and flash premonitions of higher lives and whatnot, but whatever it is you're experiencing has nothing to with standing radio waves.

And for what it's worth, you're not going to get anywhere by listening to a sound at a frequency of 7.83 Hertz, which I also saw recommended, because sound waves and radio waves aren't the same thing.  And incidentally, "raising the frequencies" is not necessarily a good thing.  If you think "high frequencies = good, low frequencies = bad," how 'bout you listen to a piccolo for three hours and I listen to a cello for three hours, and we'll see which one of us comes away with a splitting headache.

Lest you think this stuff is just the province of a few scattered woo-woos, the "Schumann Resonance Today" page has fifteen thousand followers, and their posts average between six hundred and a thousand likes each.  It'd be comforting to think that some of these are people who follow the page simply for the humor value, but after looking at the comments, I'm forced to the conclusion that the vast majority of these folks are True Believers.

I find this colossally frustrating.  To learn what the Schumann resonances are -- and how (frankly) prosaic the phenomenon is -- all you have to do is read the post on Skeptoid I linked above, which was the first non-woo hit I found after a fifteen-second Google search; failing that, just read the damn Wikipedia article.  Both are clear about how the resonances work, that they have nothing to do with human health, and that all of the "Resonances EXPLODED" stuff is utter nonsense.

So I'm forced to the conclusion that this isn't only an example of superstition, pseudoscience, and confirmation bias, it's an example of laziness.  The answers, the real answers, are out there; and -- unlike, for example, quantum physics -- in this case the actual science isn't even that hard to understand.  There is no excuse for falling for this kind of foolishness, not with the access we now have to real, factual knowledge.

I'll end with an exhortation to all of us to get out there and learn some damn science before we start posting stuff on social media.  And as far as the Facebook algorithms -- get your fucking act together.  Seems like after thirteen years of writing Skeptophilia, y'all'd have figured out that recommending pages like this to me is seriously barking up the wrong tree.

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Saturday, March 15, 2025

Ill-starred

I've never believed in luck.  It's true, however, that life is full of caprices.  Although the laws of physics are rigorously enforced in all jurisdictions, the bigger picture often seems to be chaotic.  I think a lot of people put too much stock in superstitious beliefs about good (or bad) luck; I much more tend to agree with Thomas Jefferson, who famously said, "I've found that the harder I work, the more luck I seem to have."

Still, sometimes you read about what some people have gone through, and you can't help coming away with the feeling that the stars must have been misaligned when they were born.  Their lives are just one disaster after another -- and I choose the word deliberately, because disaster comes from Latin words meaning "bad stars," and the specific example I'm thinking of was an eighteenth-century French astronomer who just could not catch a break.

His full name was Guillaume Joseph Hyacinthe Jean-Baptiste Le Gentil de la Galeisière, but historians of science know him as Guillaume Le Gentil.  He was born in September of 1725 in Coutances, and was inspired to study astronomy after hearing a lecture by the famous astronomer, cartographer, and world traveler Joseph-Nicolas Delisle.  After receiving his bachelor's degree in the subject, he threw himself into research with great gusto.  He discovered the Pinwheel Cluster (Messier 36), the Starfish Cluster (Messier 38), and a dark nebula in the constellation Cygnus that is now called Le Gentil 3 in his honor.

The Pinwheel Cluster [Image is in the Public Domain, courtesy of the 2 Micron All-Sky Survey]

Just about everything else he attempted, however, was... a disaster.

In 1760, Russian polymath Mikhail Vasilyevich Lomonsov came up with a method for refining the length of the Astronomical Unit (A.U.), the distance between the Earth and the Sun, by making careful measurements from various locations of the transit of Venus -- the apparent movement of the silhouette of Venus across the face of the Sun at the point when the Earth, Venus, and the Sun are all lined up.  Le Gentil, who had already done some work on this question, joined the French team working on the project, and was dispatched to Pondicherry, India, then a French colonial possession, where he'd been given permission by the king to set up an observatory.

Before Le Gentil's ship could get him there, though, the Seven Years' War broke out.  As different parts of India, and the islands of the Indian Ocean, were under the control of France and Britain, and those were on opposite sides of the conflict, ship travel in the region was iffy at best.  Le Gentil got stranded on Mauritius, and had a hell of a time finding anyone who would get him to India in time for the transit (6 June 1761).  He finally found a frigate whose captain said he'd get him to Coromandel, India, and from there Le Gentil could get another ship to Pondicherry in plenty of time -- but the first ship was first blown off course for five weeks, and then by the time they got to Coromandel they found out that Pondicherry had been taken by the British and they weren't allowing any French citizens to land there.

So Le Gentil had no choice but to return to Mauritius.  The transit took place while he was on board ship -- the weather was clear, but the seas were so rough and the ship pitching so wildly that he couldn't take any measurements from on board.

No worries, Le Gentil thought; because of the geometry of the orbits of Earth and Venus, Venusian transits come in pairs, eight years apart.  (Each pair, though, is separated by over a century.)  He decided to try and get measurements for the 1769 transit in Manila, Philippines, but the Spanish authorities weren't keen, so he went back to giving a go at Pondicherry again, which had been returned to French control in 1763.  He got there in 1768, built a special observatory to do his measurements, got everything ready...

... then the day of the transit, the clouds rolled in.

He was now zero for two.

Licking his wounds, he decided to return to France, but fate wasn't done yet.  The crew and passengers of his ship were struck by dysentery, and forced to put in on Réunion Island so they could recover.  (And, presumably, clean the ship.)  While in port, the ship was damaged in a storm and declared un-seaworthy, so once again he was stranded.  Finally he found a Spanish ship that was willing to take him home, and he arrived home in Paris in October of 1771, eleven years after he'd left for what was supposed to be an absence of a year or so.

When he got there, he found that much like Bilbo Baggins in The Hobbit, he'd been declared legally dead.  Not a single one of the letters he'd sent home during his voyage had arrived.  His wife had remarried, his estate had been plundered, and his seat at the Royal Academy of Sciences given to someone else.  He ended up in court for years trying to (1) prove he was actually still alive and wasn't an impostor, (2) get some of his belongings back, and (3) get re-appointed to the Academy.  (Eventually the king himself had to intervene to force the Academy to accept him again -- and also, to allow him to remarry without being guilty of bigamy.)

What's most remarkable about Le Gentil is that he seems to have lived up to his name (gentil is French for "friendly" or "kind").  He wrote a memoir with the cumbersome title Voyage dans les mers de l'Inde, fait par ordre du Roi, à l'occasion du passage de Vénus, sur le disque du Soleil, le 6 juin 1761 & le 3 du même mois 1769 par M. Le Gentil, de l'académie royale des sciences ("Voyage to the Indian Ocean, by Order of the King, for the Occasion of the Passage of Venus Across the Disk of the Sun, 6 June 1761 and the 3rd of the Same Month 1769, by Monsieur Le Gentil, of the Royal Academy of Sciences").  In it, you very much get the impression that Le Gentil had an "Oh, well, ha-ha, that's the way it goes" attitude toward all of his troubles; he never does what I would have done after the second setback, which is to scream "For fuck's sake, what now?" and start throwing heavy objects.

Guillaume Le Gentil died in Paris in October of 1792, at the age of 67.  This, in fact, might have been the best stroke of luck he ever had; he missed by only a few months the start of the horrific Reign of Terror, which -- to judge by the fate of poor, doomed Antoine Lavoisier -- had little respect for scientists.

Reading about Le Gentil's life, you have to wonder how one person could have such continual misfortune.  It reminds me of the line from Calvin & Hobbes, where Calvin's mom tells him, "Life is unfair," and Calvin responds, "I know, but why can't it ever be unfair in my favor?"  It sure seems like Le Gentil was on the receiving end of way too many bad turns of fate.  Even if I don't attribute it to his literally being ill-starred from birth, I can't help but feel a combination of pity and admiration for someone who kept doggedly persevering despite just about everything going wrong.

And maybe his tale of woe will also put things into perspective next time you think you're having a bad day.

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Friday, March 14, 2025

In the blink of an eye

One of the things I love about science is how it provides answers to questions that are so ordinary that few of us appreciate how strange they are.

I remember how surprised I was when I first heard a question about our vision that had honestly never occurred to me.  You know how images jump around when you're filming with a hand-held videocamera?  Even steady-handed people make videos that are seriously nausea-inducing, and when the idea is to make it look like it's filmed by amateurs -- such as in the movie The Blair Witch Project -- the result looks like it was produced by strapping a camera to the head of a kangaroo on crack.

What's a little puzzling is why the world doesn't appear to jump around like that all the time.  I mean, think about it; if you walk down the hall holding a videocamera on your shoulder, and watch the video and compare it to the way the hall looked while you were walking, you'll see the image bouncing all over the place on the video, but won't have experienced that with your eyes.  Why is that?

The answer certainly isn't obvious.  One guess scientists have is that we stabilize the images we see, and compensate for small movements of our head, by using microsaccades -- tiny, involuntary, constant jitters of the eyes.  The thought is that those little back-and-forth movements allow your brain to smooth out the image, keeping us from seeing the world as jumping around every time we move.

Another question about visual perception that I had never thought about was the subject of some research out of New York University and the University Medical Center of Göttingen that was published in the journal Current Biology.  Why don't you have the perception of the world going dark for a moment when you blink?  After all, most of us blink about once every five seconds, and we don't have the sense of a strobe effect.  In fact, most of us are unaware of any change in perception whatsoever.

[Image licensed under the Creative Commons Mcorrens, Iris of the Human Eye, CC BY-SA 3.0]

By studying patients who had lesions in the cerebrum, and comparing them to patients with intact brains, the scientists were not only able to answer this question, but to pinpoint exactly where this phenomenon happens -- the dorsomedial prefrontal cortex, a part of the brain immediately behind the forehead.  What they found was that individuals with an intact dmPFC store a perceptual memory of what they've just seen, and use that to form the perception they're currently seeing, so the time during which there's no light falling on the retina -- when you blink -- doesn't even register.  On the other hand, a patient with a lesion in the dmPFC lost that ability, and didn't store immediate perceptual memories.  The result?  Every time she blinked, it was like a shutter closed on the world.

"We were able to show that the prefrontal cortex plays an important role in perception and in context-dependent behavior," said neuroscientist Caspar Schwiedrzik, who was lead author of the study.  "Our research shows that the medial prefrontal cortex calibrates current visual information with previously obtained information and thus enables us to perceive the world with more stability, even when we briefly close our eyes to blink...  This is not only true for blinking but also for higher cognitive functions.  Even when we see a facial expression, this information influences the perception of the expression on the next face that we look at."

All of which highlights that all of our perceptual and integrative processes are way more sophisticated than they seem at first.  It also indicates something that's a little scary; that what we're perceiving is partly what's really out there, and partly what our brain is telling us it thinks is out there.  Which is right more often than not, of course.  If that weren't true, natural selection would have finished us off a long time ago.  But that fraction of the times that it's wrong, it can create some seriously weird sensations -- or make us question things that we'd always taken for granted.

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Thursday, March 13, 2025

Old fake news

Last year I did a post about the remarkable Byzantine Emperor Constantine VII Porphyrogenitus, whose passion for history (coupled with an understanding of how fragile and easily lost books are) led him to compile a 53-volume set of transcripts of the writings from historians of antiquity.  His work preserved accounts for which we have no other copies, so without his tireless efforts, huge chunks of the history of early Europe would now be unknown and unknowable.

And that's even taking into account that of his original 53 volumes, only four of them survived.

So many works of ancient writers are lost forever, some to natural disasters like fire, flood, earthquakes, and volcanic eruptions, but others to deliberate destruction -- often motivated by religious fervor, or the desperation by rulers to discredit their rivals and predecessors.  This latter, which was all too common after there'd been conflict over succession, led to the systematic purging of works painting previous regimes in a positive light.

The loss of primary sources makes the job of modern historians hard enough.  But a further complication arises when you consider the question of what happens when one of the documents that did survive is unreliable.

This is exactly the situation with regards to a major source of our knowledge of the later Roman Empire, from the reign of the Emperor Hadrian (117 - 138 C.E.) to the Emperor Marcus Aurelius Carinus (283-285 C.E.).  The document is called the Historia Augusta and seems to have been written during the reign of the Emperor Diocletian (285-305 C.E.).  Diocletian himself was looked upon early in his reign as a usurper -- he wasn't of royal blood, but was a soldier who rose up through the ranks -- so it's no wonder that a writer during his reign would be motivated to dig up all the dirt he could on the preceding dynasties.

"Okay, they may have been royals, but a lot of 'em were loonies," seems to have been the approach.  "Diocletian, on the other hand, will Make Rome Great Again."

Cover of an eighteenth-century edition of the Historia Augusta, from Ettal Abbey, Germany [Image is in the Public Domain]

To be fair, there was a lot to be critical of, especially in the last half of the period the Historia covers.  The fifty-year time period between the assassination of the Emperor Severus Alexander (235 C.E.) and the accession of Diocletian is known to historians as the "Crisis of the Third Century" because it was marked by chaos, lawlessness, and one short-lived ruler after another.  

The problem with the Historia is that for a lot of the period, there's nothing to cross-check it against.  There are chunks of material that have no attestation anywhere else; it's literally the only source that's survived.  There's an ongoing debate amongst historians about its accuracy, and some believe that even many of the sources the Historia cites are themselves made up.  The historian Anthony R. Birley, of Universität Düsseldorf, did an analysis published in the journal Classica called "Rewriting Second- and Third-Century History in Late Antique Rome: the Historia Augusta" in which he estimates the total amount of reliable historical information in the document as only seventeen percent -- from a high of thirty-three percent in the section on the life of Marcus Opellius Macrinus all the way down to a flat zero for the accounts of the usurpers Firmus, Saturnius, Proculus, and Bonosus, all of whom immediately preceded Diocletian's rise to wearing the purple.

Probably not a coincidence, that.

Historical research always runs into the problem that accurate records are no more likely to survive than inaccurate ones.  Also, there's the whole "history is written by the victors" thing, which complicates our understanding of any period of history where there was regime change.  But considering the problem of the Historia Augusta has made me wonder how historians of the future will read the documents from the United States of 2025.  Not only are the members of the Trump regime lying their asses off about what's going on, such as House Speaker Mike Johnson's claim that the economy was tanking under President Biden, and that Trump's repeatedly playing Tariff Peekaboo with Canada, Mexico, and the E.U. is somehow going to get it back on track, they're actively destroying documents having accurate information about what's happening.

My fear is that the Crisis of the Twenty-First Century won't end up any better understood by historians than the Crisis of the Third Century is.

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Wednesday, March 12, 2025

The stellar forges

A criticism sometimes aimed at us science types is that our obsession with naming, classifying, and explaining everything in the universe robs us of its wonder.  Why, they ask, do we have to get so damn technical about everything?  Why can't we just look at the stars, or the flowers, or a bird in flight, and appreciate their beauty?

Well, needless to say, I disagree with that pretty strenuously.  My understanding of science -- which, admittedly, is that of a reasonably well-read layperson's -- only adds to my sense of wonder.  For me, it's a case of the more you know, the more amazing it gets.

Let me give you an example of that -- a piece of research out of the University of Arizona that used the James Webb Space Telescope to peer far out into space (and thus, far back in time), and found something astonishing.  Something, in fact, that would appear quite mundane, meriting only a "So what?', if you didn't know some science.

Here's a capsule summary of the research -- then an explanation of why it's way cooler, and more surprising, than it appears at first.

The JWST just released a spectral analysis of a galaxy called JADES-GS-z14-0, which is about 13.5 billion light years away.  That's a pretty impressive feat; this means the light from it left on its journey to us when the universe was only two percent of its current age.  This, in fact, means the galaxy itself formed not long (in astronomical terms) after the cosmic microwave background radiation, the earliest remnants of radiation released when the universe settled down enough to allow photons to travel unimpeded.

Just seeing JADES is amazing enough.  "Imagine a grain of sand at the end of your arm," said Jakob Helton, who led the research.  "You see how large it is on the sky -- that's the size of the region we looked at."

The shocker came when they did an analysis of its spectrum, and found that it had high amounts of oxygen.  But why this is surprising -- why, in fact, it's going to force a rethinking of our understanding of how stars and galaxies form -- is where you have to know some background.

When heated or otherwise energized, each element emits a characteristic fingerprint of frequencies of light known as its emission spectrum.  The fact that these specific frequencies and no others are emitted was key to the development of quantum theory; energy levels in atoms are quantized, or exist in discrete steps, and an atom can no more emit a different frequency of light than you could go down a step-and-three-quarters on your staircase.  Because of these spectral fingerprints, it's now possible to determine the composition of distant stars by looking for the characteristic spectral lines of common elements in the star's spectrum.  This is how Helton et al. figured out that JADES contains large amounts of oxygen.

The emission spectrum of oxygen [Image is in the Public Domain]

Thing is, it shouldn't.  We have lots of oxygen here on Earth because the primordial cloud from which the Solar System condensed had a bunch of it; so, in fact, does the Sun, since it formed from the same cloud.  Alien astronomers could look at the Sun through their telescopes and figure that out the same way that we do.  But oxygen, it turns out, doesn't form all that readily.  The Solar System is oxygen-enriched because the Sun is (at least) a third-generation star.  In the very early universe, when there was nothing much around but hydrogen, helium, and trace amounts of lithium -- the atoms that were formed during the Big Bang itself -- stars had vanishingly small "metal content."  (To astrophysicists, "metals" are any elements heavier than helium.)  As those first stars underwent fusion in their cores, hydrogen was converted to helium, then helium to lithium and carbon; at the end of their lives, those stars that were heavy enough went supernova, and the pressures and temperatures of those colossal explosions not only generated "metals" but distributed them back into space.

Second-generation stars formed from the debris left behind by the explosion of first-generation stars.  Those second-generation stars, during the course of their lives and deaths, would have produced more "metals," and the cycle repeated, ultimately leading to the richness of composition we see in our own Solar System.

But it takes a while.  The amount of oxygen even in early third-generation stars is pretty small.  So where did all the oxygen in an extremely early galaxy like JADES come from?

We don't know.  "It's a very complicated cycle to get as much oxygen as this galaxy has," said study senior author George Rieke.  "So, it is genuinely mind boggling."

So there's evidently something about star formation and galaxy evolution we're missing.  Stars forming only three hundred million years after the Big Bang should be just about entirely hydrogen and helium.  And chances are, JADES is almost certainly not the only anomalous early object.  "The fact that we found this galaxy in a tiny region of the sky means that there should be more of these out there," Helton said. "If we looked at the whole sky, which we can't do with JWST, we would eventually find more of these extreme objects."

For me, it's lovely to look up into the sky on a clear night, but my enjoyment is much enhanced by the fact that I know a little bit about what I'm looking at.  The stars are stellar forges, creating all the matter around us -- we are truly, as Carl Sagan famously said, "made of star stuff."

In short: science itself is beautiful.  Understanding how the world works should do nothing but increase our sense of wonder.  If scientific inquiry isn't accompanied by a sense of "Wow, this is amazing!", you're doing it wrong.  I'll end with a quote from Nobel Prize winning physicist Richard Feynman, who in his 1988 book What Do You Care What Other People Think? had the following to say:
I have a friend who's an artist, and he sometimes takes a view which I don't agree with.  He'll hold up a flower and say, "Look how beautiful it is," and I'll agree.  But then he'll say, "I, as an artist, can see how beautiful a flower is.  But you, as a scientist, take it all apart and it becomes dull."  I think he's kind of nutty. …  There are all kinds of interesting questions that come from a knowledge of science, which only adds to the excitement and mystery and awe of a flower.  It only adds.  I don't understand how it subtracts.
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Tuesday, March 11, 2025

Music and cognition

When educational budgets are cut -- which they are, every year -- inevitably what is hit the hardest are programs for the arts, music, theater, and other electives.

This is ridiculous, and I say that as someone who spent thirty-two years teaching science, a so-called "core" subject.  And I don't mean to criticize the importance of having a good "core" education; we all need to be able to read and write, do mathematics, understand the history of humanity, and have a basic and broad grasp of scientific principles.

But that's not the be-all-end-all of education, or at least it shouldn't be.  I mean, consider not what gets you a job, what allows you to do mundane chores like balancing your checkbook, but what actually brings joy to your life.  What are your hobbies, things you spend your spare time doing, things you'd spend much more time doing if you had the leisure?  My guess is very few of us fill our free time doing chemistry experiments, even admitted science nerds like me.  No, we paint, sculpt, garden, play an instrument, sing in the choir, play or watch sports (or both), cook elaborate meals, write stories.  And while those do take a basic 3-Rs education -- I wouldn't be much of a fiction writer if I had a lousy vocabulary or didn't know how to write grammatically -- for many of us, our real fascinations were discovered in the classes that go under throwaway names like "electives" and "specials" and "optional courses."

So cutting these subjects is, for many students, taking away the one thing about school that makes it tolerable, and robbing them of the opportunity to find hidden talents and undiscovered passions that will bring them joy for a lifetime.

But a study has shown that it's more than that.  Research by Katherine Sledge Moore and Pinar Gupse Oguz of Arcadia University, and Jim Meyer of Elmhurst College, has found that music education correlates strongly with the development of flexible intelligence -- and that those gains translate across disciplines.

[Image licensed under the Creative Commons Jacob Garcia from Reus, Spain, The Cello Player, CC BY 2.0]

In "Superior Fluid Cognition in Trained Musicians," published in the journal Psychology of Music, the researchers found that the degree of experience a person has in playing music (or singing), the higher they score on a variety of metrics -- episodic memory, working memory, attention, executive function, and processing speed.

It's hardly surprising when you think about it.  As the researchers put it, fluid intelligence skills "are highlighted in musical training," which involves "quickly comprehending a complex symbolic system, multitasking, reasoning, and more."  I can say from personal experience that performing music -- not just playing it at home for your own entertainment -- takes those skills up an additional notch.  I was a performing musician for years, playing flute in a Celtic dance band called Crooked Sixpence.  Being up on stage requires that you think on your feet, and often make lightning-fast alterations to what you're doing.  As an example, most of what my band played were medleys of three or four tunes, and we almost never planned ahead how many times we were going to play any one of them (nor who'd be playing melody and who'd be playing harmony).  Our fiddler, who was more-or-less in charge of the band, just gave me a wiggle of the eyebrow if she wanted me to take a solo, and said "hep!" if we were switching tunes.  Sometimes the inevitable happened -- the fiddler and I both jumped to harmony at the same time, or something -- but almost always, one of us recognized it in under two seconds and slipped right back into playing melody.  Despite the complexity of what we did, the times we had a real crash-and-burn on stage were very few and far between.

So this study is spot-on.  And its conclusions are further evidence that we should be expanding arts and electives programs, not cutting them.

Not, honestly, that I expect it will have an effect.  Sorry to end on a pessimistic note, but the educational establishment has a long track record of completely ignoring research on developmental psychology in favor of "we've always done it this way."  The most egregious example is our determination to start foreign language instruction in seventh or eighth grade, when we've known for years that our brain's plasticity with respect to learning new languages peaks around age three or four, and declines steadily thereafter.

Or, as one of my students put it, "So we start teaching kids languages at the point they start to suck at it."

A close second is that researchers have been saying for years -- with piles of evidence to support them -- that children need recess or some other unstructured play time in order to improve overall behavior and attitudes about being in school.  Not only that, but recess time correlates with better scores on tests, so like music, it's an investment that pays off across the board.  Nevertheless, schools across the country have been gradually reducing unstructured leisure time, in some places to twenty minutes or less per week, in favor of devoting more time to preparing for standardized tests.

Now there's a way to make kids look forward to going to school in the morning.

I'd like to think that this research will influence educational establishments and (especially) budgetary decisions, but I'm not holding my breath.  Any change on that count is likely to be very slow to come.  But still, every piece of evidence counts.  And anything we can do to foster the development of fluid intelligence, positive attitudes, and confidence in children is movement in the right direction.

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Monday, March 10, 2025

Wipeout

252 million years ago, the Earth was hit by a confluence of Very Unfortunate Events.

First, most of the large continental land masses locked up into a single supercontinent, Pangaea.  This had multiple effects, including alterations of oceanic currents, massive desertification, and the collapse of the convection cells powering seafloor spreading at mid-ocean ridges.  The latter caused a drastic lowering of sea level and exposure of continental shelves, reducing habitat for marine species that live in shallow water (which is most of them).

Second, the tinder box that had formed in the Carboniferous Period -- enormous deposits of coal, oil, and limestone produced when the Earth was basically one giant greenhouse -- found its lit match when the Siberian Traps erupted.  This is one of the largest volcanic events known, and produced an almost unimaginable four million cubic kilometers of basaltic lava.  This ripped through all that coal and carbonate rock, releasing catastrophic amounts of carbon dioxide and sulfur dioxide into the atmosphere.  The portion of the excess absorbed into the ocean caused acidification, killing any marine animal with carbonate shells or skeletons.  The resulting temperature rise caused worldwide oceanic anoxia.  It very likely also triggered the unraveling of unstable methane clathrate deposits on the seafloor, releasing gaseous methane and further boosting the temperature.

If that weren't enough, right around this time the Araguainha Impactor hit what is now Brazil.  The spot where it struck was at the time mostly composed of another gift from the Carboniferous -- oil shale.  This was flash-incinerated, releasing yet more carbon dioxide.

The result: the extinction of between 80% and 95% of the species on Earth, depending on how you count them and who you ask.  

What there's no doubt of, though, is that it was devastating.  It's the closest the Earth has come to undergoing a complete wipeout.  Entire taxa went extinct, including eurypterids (sea scorpions), trilobites, blastoids, tabulate and rugose corals, and acanthoid fish; 99% of radiolarian species vanished, as well as 98% of gastropods and 97% of ammonites and foraminiferans.  The entire food web collapsed.

Afterward, the Earth was an overheated, sulfur-smelling, hypoxic, largely lifeless wasteland.

And yet, somehow, it recovered.  How exactly the Earth's living things made it through the largest bottleneck ever is the subject of a paper last week in the Geological Society of America Bulletin, authored by a team from University College Cork, the University of Connecticut, and the Natural History Museum of Vienna.  And what it found was that the bounce-back didn't happen all at once.  It was far from a linear progression toward rebuilding the biosphere -- there were further shifts and setbacks over several million years as life "found a way."

The team focused mainly on the plants, given that they're the base of the food web.  Some of the first recolonizers were conifers, but they suffered a reversal not even a million years after the main pulse of extinctions with the Smithian-Spathian Boundary Event, a further spike in global temperature that ultimately saw sea surface temperatures of 40 C (104 F), but which was then followed by an unexplained and equally rapid drop.  The wild pendulum swings in temperature caused the collapse of the resurgent coniferous forests; ultimately they were replaced by seed ferns and club mosses (the latter were larger than the ones we have today, but not as big as the enormous Lepidodendrons that were around during the Carboniferous).  

An early Triassic seed fern, Lepidopteris [Image licensed under the Creative Commons Vivi Vajd, Stephen McLoughlin, Sam M. Slater, Ola Gustafsson, Allan G. Rasmusson, Lepidopteris life restoration, CC BY 4.0]

Eventually the climate stabilized, but any way you spin it, the Early Triassic Period was a horrible time to be alive.  It was largely hot and dry, but then -- with startling rapidity -- terrestrial biomes were swamped during the weird Carnian Pluvial Episode, a two-million-year-long thunderstorm which I wrote about not long ago.  Then, at the end of the Triassic, there was yet another massive extinction, this one probably caused by the volcanism from the Central Atlantic Magmatic Province (which would ultimately open the Atlantic Ocean).  Things had largely settled down by the beginning of the Jurassic Period, at which point we were heading into a period of lush forests and (mostly) stable climate -- the long, glorious Age of Dinosaurs.

But as you know, even their salad days weren't destined to last forever.

It always strikes me, when I read papers like this one -- the colossal hubris and ignorance of people who think we can mess around with Earth's ecosystems with complete impunity.  They often shrug off any Cassandras with breezy lines like, "The Earth's climate has had swings in the past, and has always recovered."  And in one sense, sure, that's true.  Faced even with a catastrophic extinction like the Permian-Triassic, enough species made it through the bottleneck -- and the whipsawing that happened afterward, as the climate gradually restabilized -- to repopulate the Earth.

But keep in mind that a great many species didn't make it.  Most of them, in fact.  Then, at the end of the Cretaceous, the non-avian dinosaurs -- that had been the dominant group worldwide for two hundred times longer than humans have existed -- were completely eliminated.  Okay, life recovered once again, but even for the survivors, living through the event itself was no fun.

Oh, and allow me to put this whole grim story into perspective by mentioning the second paper that came out this week; a huge study out of James Cook University and the University of Adelaide showing unequivocally that tropical forests are dying off because of human-induced climate change -- that they're not adapting fast enough to cope with how quickly we're altering the climate.

We are the first species that has sufficient brainpower to understand how our actions affect the biosphere, and (perhaps) enough power to work toward mitigating them.  And instead, we're largely doing nothing, selling out the future in exchange for short-term expediency, a use-it-once-then-throw-it-away lifestyle, and enriching the coffers of corporate billionaires.  The current so-called administration's mottos with regards to the environment are "Deregulate everything," "Cut down more trees," and "Drill, baby, drill."

They, and all of us, should remember: sure, it's likely that whatever we do, in a million years there still will be plenty of life on Earth.  No matter the mistakes we make, the biosphere will survive.

But there is no guarantee that the survivors will include us.

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