One story, two ways

After fifteen years of writing here at Skeptophilia, one thing that never fails to amaze me is how little it takes to get a crazy claim going -- and that afterward, it's nearly impossible to eradicate.

The reason for the latter is, I think, a variety of factors.  First, there's the undeniable fact that the outré explanations are nearly always way more interesting than the prosaic ones, and the result is the Fox Mulder Effect:

I must admit, a wee bit shame-facedly, to having experienced this myself.  I went through an unfortunate period in my college years and early twenties when I wanted desperately for stuff like Tarot card divination, precognitive dreams, various cryptids, and past lives to be true, and read books on the topics voraciously.  Eventually -- and fortunately -- better sense, training in scientific skepticism, and an innate drive toward honestly won the day, and I gave it all up as a bad job.  Not, of course, without some pangs of regret.  That our lives were subject to mystical, ineffable powers, that magic was in some sense real -- well, the draw was powerful.  Today I might rail against the true believers who still fall for such attractive fictions, but at the same time, I understand them all too well.

Second, there's the sunk-cost effect -- that once you've put a lot of time and energy into promoting an idea, it's tempting to stick with it even once you know it's a losing battle (partly explaining how there are still significant numbers of people desperately clinging to Donald Trump's sinking ship).  Admitting that you were wrong, or -- worse -- that you were bamboozled can be profoundly embarrassing.

Third, as we've seen here many times before, once the seed of an idea is planted, expunging it is about as easy as getting toothpaste back into the tube.  It remains in our memories like some sort of insidious post-hypnotic suggestion.  This is especially true if you keep running into it over and over, something that social media has made a hundred times worse.  As the (probably apocryphal) quote from Joseph Goebbels says, "If you tell a lie big enough and keep repeating it, eventually people will believe it."

I think you can come up with a few modern examples of this principle without my prompting.

But to take a less emotionally-charged instance of all this, today let's look at the strange tale of the three-thousand-year-old cellphone.  I'll tell the story two different way, and see which appeals to you.

In about 1300 C.E., in the ruins of an ancient Babylonian city in what is now Iraq, a historian found a strange-looking artifact:

[Image licensed under the Creative Commons Karl Weingärtner (User:Kalligrafiemonk), Babylonokia, CC BY-SA 4.0]

Naturally enough, seven hundred years ago they had no idea what the strange object was.  The writing in the ovals, and the inscription at the top, though, they recognized as clearly cuneiform, a script consisting of wedge-shaped impressions, originally made using the triangular ends of reed stems.  Cuneiform is most commonly associated with Sumerian, a linguistic isolate, but was adapted for use by a number of other unrelated languages in the region, including Akkadian, Eblaite, Elamite, Hurrian, Luwian, and Urartian.  Because some of these languages even now are only partially understood, the finder of the artifact knew only that it was some kind of ancient script, but not what the symbols meant.

Today, though, the object takes on a much greater, and stranger, significance.  It's been dated to the thirteenth century B.C.E., and investigated by archaeologists (who later covered up their findings because of how earthshattering the conclusions were).  But the information was leaked, picked up by a site called Paranormal Crucible, and used to support an astonishing claim: the ancient Babylonians had modern technology -- including something very like a cellphone.

Cue the Ancient Astronauts crowd experiencing multiple orgasms.

Okay, now let's do the story a different way.

In 2012 a German artist named Karl Weingärtner created a piece of art out of clay that looked like a mobile phone with cuneiform buttons.  He made it, he said, as a reaction to the negative effects of global information technology after visiting an exhibition at Berlin's Museum of Communication called From the Cuneiform to the SMS: Communication Once and Today.  Weingärtner posted an image of the (initially untitled) piece on Facebook as part of a promotion of his art, and one of his followers promptly christened it the Babylonokia.

Well, once an image is online, it's damn near impossible to stop people from downloading it and then doing what they want to with it.  And that's exactly what happened.  Someone grabbed the photo and reposted it -- claiming that it was a real three-thousand-year-old artifact from ancient Mesopotamia.

Thing is, very few people can read Sumerian (or Akkadian etc.), so almost nobody could see that the symbols themselves were meaningless, vaguely cuneiform-like scribbles.  I'm reminded of the absolutely cringe-worthy thing going around -- I've even heard of it being used in elementary school classrooms as a "multicultural lesson" -- where you "convert your name to Japanese characters" by some bogus one-to-one correspondence between hiragana and the English alphabet, which doesn't even try to get close to how sounds are expressed in the Japanese language.  Weingärtner, of course, wasn't simply being a blithering insular bigot the way the Japanese character people are, but was making an (entirely different) point about the ubiquity of technology.

And in any case, there are very few Sumerians still around who might be offended.

Conclusion: there are no three-thousand-year-old cellphones.  The person who lifted Weingärtner's image and reposted it as an actual artifact was, to put not too fine a point on it, lying.  The ones coming afterward who believed it are simply gullible, or else have been reading too much Erich von Däniken and Graham Hancock.

Which, now that I come to think of it, are kind of the same thing.

The problem is, you can see why the first version of the story has real sticking power, and the second one doesn't.  There are still people using Weingärtner's clay cellphone as evidence that advanced technology existed in the distant past, and the photo shows up regularly on websites devoted to Ancient Astronauts and "unsolved mysteries," lo unto this very day.

Further evidence that once a claim gets out there, there's no getting it back.  And that, as the Rock Man from Harry Nilsson's The Point said, "You see what you wanna see, you hear what you wanna hear."

So when you run into a claim like this, just keep your rational facilities engaged, okay?  I mean, I get why weird explanations are appealing.  I've been there, and in some ways, I'm still there.  I just feel like it's more important to find the real answer, you know?  As Carl Sagan put it, "For me, it is far better to grasp the Universe as it really is than to persist in delusion, however satisfying and reassuring."

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Beneath the labyrinth

One of the things that bothers me most about the woo-woo mindset is the apparent need they feel to superimpose some kind of paranormal frisson on top of damn near everything, as if what we know from science and rational inquiry isn't fascinating enough.

I mean, really.  Do you need to add any Tao of Physics nonsense to make quantum theory mind-blowingly cool?  Do we need to have the apparent positions of the planets against the backdrop of stars somehow controlling our lives to make astronomy awe-inspiring?  Why is there this bizarre drive to look at the universe around us, with all of its real marvels, and say, "Nope, that's not sufficient"?

That was my reaction to the rather overwrought article I read over at Substack a couple of days ago, entitled, "The Labyrinth at Hawara: What the Scans Found and Why Egypt Won't Let Anyone Dig."  Hawara, it turns out, is a recently-excavated archaeological site in Egypt, near the pyramid of Amenemhet III, and is about 380 by 160 meters -- so, a pretty sizable structure -- that once was made up of hundreds of rooms separated by walls and rows of columns.  Now, it's a ruin, and in fact much of the stone that was used to build it was scavenged for other uses in the intervening four millennia.  Its original purpose is unknown, but it may have been a temple complex.  The historian Herodotus, who visited it in around 430 B.C.E. while it was still standing, described it as follows:

[The Egyptians] made a labyrinth [... which] surpasses even the pyramids.  It has twelve roofed courts with doors facing each other: six face north and six south, in two continuous lines, all within one outer wall.  There are also double sets of chambers, three thousand altogether, fifteen hundred above and the same number under ground. ...  We learned through conversation about [the labyrinth's] underground chambers; the Egyptian caretakers would by no means show them, as they were, they said, the burial vaults of the kings who first built this labyrinth, and of the sacred crocodiles. ...  The upper we saw for ourselves, and they are creations greater than human.  The exits of the chambers and the mazy passages hither and thither through the courts were an unending marvel to us ...  Over all this is a roof, made of stone like the walls, and the walls are covered with cut figures, and every court is set around with pillars of white stone very precisely fitted together.  Near the corner where the labyrinth ends stands a pyramid two hundred and forty feet high, on which great figures are cut.  A passage to this has been made underground.

Which, I think we can all agree, is pretty freakin' cool.

But apparently not cool enough, because the fringe got a hold of this story and began to embellish it.  The Egyptian government has halted deep excavation of the site; the official reason given was the high water table in the area, making digging a fraught endeavor, both from the standpoint of safety and of potentially damaging the site irreversibly.  But we all know what "official reason" means to woo-woos:

It means "lie."

So in came Joe Rogan (because of course he did) and interviewed someone who said that the real reason was a "magnetic anomaly" that scans had discovered in the area, that was evidence of a "thirty- or forty-meter-wide metallic sphere" buried underneath the labyrinth, and the Egyptian government didn't want us finding out anything more about it.  Well, that could only mean one thing, right?

Of course right.  Aliens.  What else?

The Substack article was accompanied by the following, obviously AI-generated image:

This has about as much credibility as a pic that someone claims is "a real photograph of Mordor," but no one comes right out and says that.  The article, and Rogan, and (now) many other fringe-y sources, strongly imply that's really what's under there, and the Egyptian government is stopping anyone from looking into it further because, um, reasons.

Oh, and if that wasn't enough, Rogan also said that in order to prove all this, we need to "occupy Egypt, and just fucking get this done."

*brief pause to stop screaming and throwing heavy objects*

Well, actual archaeologist Flint Dibble (with a name like "Flint Dibble," what other profession could he have gone into?) had some choice words for Rogan et al. about his penchant for "pseudoarchaeological crap," and calls out the "metallic sphere" claim for the nonsense it is.  There was no anomalous magnetic scan, and there is zero evidence of a metallic sphere (or a metallic anything) buried at Hawara, much less what Rogan says is there (a spaceship, natch).

C'mon, people.  Ancient Egypt is cool.  Hawara is a site that was already almost two thousand years old when Jesus was born.  This temple complex -- or whatever it was -- is amazing, astonishing, fascinating.

YOU DO NOT NEED TO ADD A FUCKING SPACESHIP TO MAKE IT COOLER.

Sorry.  I said I was going to stop screaming. 

I'm really done now.

Anyhow, that's today's maddening visit to the fringe.  The upshot is that you should go to actual sources by actual archaeologists (such as this one) for your information, and stop listening to Joe Rogan, whose grasp of the truth is such that if he said the sky was blue and the grass was green, the chance of their being some other color is close to a hundred percent.

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A lens on the past

We have an unfortunate tendency to idealize the past.

Well, unfortunate is probably the wrong word.  I don't guess it does any real harm, and in fiction it can be quite entertaining. Unrealistic is probably a better choice.  This is especially common apropos of cultures for which non-historians (1) have very little in the way of solid facts, and (2) got badly beaten by more aggressive or militaristic societies, and thus have the appeal of the underdog.  (The ancient Celts and the pre-colonization Indigenous Americans and Australians are good examples of this phenomenon.) 
The sad truth is, except for the (very) select privileged few, our ancestors' lives were -- to quote Thomas Hobbes -- "solitary, nasty, poor, brutish, and short."

This idealization creates a picture in our minds that is almost certainly false, and comes out most strongly in fictional depictions of the past.  Consider, for example, Jean Auel's Clan of the Cave Bear series, which focuses on the meeting between some civilized, beautiful, sexy Cro-Magnon folks and some violent, nasty Neanderthals.  Reminiscent of Tolkien's Orcs and Elves, the Neanderthals all have names like Thok and Ugg and Glop, and the Cro-Magnons mellifluous names like Sondamar and Alidor.  (Before you start yelling at me, yes, I made those up because I don't own the book any more and I don't feel like looking it up.  But my point stands.)

But it's not just the prehistorics.  Contrast two different tales of medieval monastic life -- Ellis Peters's Brother Cadfael series and Umberto Eco's The Name of the Rose.  Don't get me wrong, I love Brother Cadfael; his logic, compassion, and love for botany are all endearing, and Peters was a great mystery writer.  But the reality of life in western Europe in the twelfth and thirteenth centuries was undoubtedly closer to Eco's harsh, unwashed, rough-shod reality, with its starving peasants and superstitions and religious fanaticism, than it was to Peters's genteel knights and tradesmen and monks.

Like I said, I don't really object to fictional portrayals, even with their inevitable inaccuracies.  I've written a few stories set in the past myself -- the English Midlands in the nineteenth century (The Tree of Knowledge), pre-Civil-War Louisiana (The Communion of Shadows), eleventh century Iceland (Kári the Lucky), late thirteenth century France (Nightingale), and Britain during the fourteenth century Black Death (We All Fall Down).  I hope I've skirted the line between realism and romanticism deftly enough to make it believable without being too dark and depressing.

But the fact remains that our ancestors didn't have it easy.  That we're here is a tribute to their tenacity, strength, and determination.  Whenever I consider archaeological finds, I'm always struck by how cushy a lot of us have it now, with our indoor plumbing and heat in the winter and electric appliances and modern medicine, all of which our forebears somehow survived -- at least for a while -- without.

The reason this all comes up is a rather horrific discovery in Spain of the site of a battle that took place in the third century B.C.E.  Again, I might be using the wrong word -- this wasn't a battle so much as a massacre.  A settlement near the current tiny village of La Hoya, in the province of Salamanca, was attacked by an unidentified set of marauders and basically slaughtered, their bodies being left to the scavengers.

A team led by Javier Ordoño Daubagna of Arkikus, an archaeological research company in Vitoria-Gasteiz, Spain, did the investigation, and came upon thirteen skeletons; nine adults, two adolescents, one young child, and one infant.  All of them showed signs of violent death.  One of the adolescents, a thirteen-year-old girl, had her arm cut off and flung three meters from her body, where it was found -- still wearing the five copper bracelets she'd been wearing when she died.

The fact that the bracelets and other valuable objects weren't taken indicates that whatever the reason for the attack was, it wasn't material profit.

"The nature of the injuries, the presence of women and young children as victims and the context of where the human remains were found on the site all indicated that this was not a battle between anything like matched forces," said study co-author Rick Schulting, an archaeologist at the University of Oxford.  "This was not a battle between noble warriors."

It also puts a clearer and harsher light on what life in the past was actually like.  "If people think of the past as something peaceful and idealized," said archaeologist Ludvig Papmehl-Dufay, of Kalmar University, who was not involved in the current study, "that needs to be revised."

In any case, it's probably for the best that we do see our history through softer lenses.  The rigors that 95% of humanity endured back then, that (fortunately) far fewer have to endure now, were seriously depressing stuff.  And I suppose it's encouraging, really; for all the horrific stories in the news, we have come a long way as a species.  Not that we don't still have a long way to go.  But when asked when I would choose to live if I had a time machine, my answer is always "right here and right now."  Although if I could skip to a point when Trump and his fascist cronies are no longer in power, I wouldn't turn that down.

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Assessing a collapse

One of the coolest things about science is the cross-fertilization that happens between disciplines.

I'm always impressed when I see examples of this, and my reaction is usually, "How did you even think of doing that?"  It is, at its core, a highly creative process.  The best science involves looking at a problem from a different angle, drawing in data or methods from other disciplines, and putting the whole thing together in such a way that the answer is clear.  (Or at least, a piece of it is clearer than it was before.)  As Hungarian biochemist Albert von Szent-Györgyi put it, "Discovery consists of seeing what everyone has seen, and thinking what no one has thought."

The creative aspect of science struck me while I was reading an article yesterday in Ars Technica about a some new research into a historical puzzle: the sudden collapse of the Shang Dynasty in China, about three thousand years ago.  The Shang were in power for nearly six centuries -- a pretty long time for a single dynastic regime -- and had made some significant accomplishments, the most notable of which were the first recorded writing system for Chinese, and amazing advances in pottery making and bronze casting.  Then -- over a very short period, perhaps only a few years -- Shang rule imploded.  A rival group called the Zhou took advantage of the chaos to defeat the Shang in a bloody battle, then scattered the remaining Shang supporters throughout the land to assure they'd never be able to rise again.

Now, researchers at Nanjing University, led by meteorologist Ke Ding, have drawn on a variety of disparate fields -- meteorology, climatology, geology, archaeology, paleontology, and analysis of extant historical records -- to try to create a complete picture of the causes behind the Shang Dynasty's sudden demise.

Their conclusion: the collapse of the Shang was the consequence of a long line of dominoes that started with a series of prolonged and powerful El Niño events, thousands of kilometers away.

Paleontologists analyzing fossil remains in strata off the coast of Peru dating to around 1000 B.C.E. note a shift from cold-water species to those that favor warmer water.  The fact that there wasn't an oscillation back and forth, but a replacement by warm-water species that lasted perhaps a century, suggests that rather than the usual pendulum swing of El Niño/La Niña conditions -- the former causing a warmup of the surface waters off the west coast of South America, the latter a corresponding cooldown -- in the years before the Shang collapse, the climate seems to have switched over to a semi-permanent El Niño.  What would be the outcome of such a shift in the ENSO (El Niño Southern Oscillation)?  This is where the meteorologists and climatologists took over; they estimated the degree of warmup, and let their computer models predict what effects that would have.

One thing that popped out of the models was a drastic increase in the strength of Pacific typhoons, and a significant change in their paths.  The warmup shifted wind patterns, tracking large storms away from Australia (thus the droughts and wildfires in Australia and Indonesia that usually accompany El Niño years), and northward into China.  Typhoons, though, usually fizzle once they cross over from ocean to land; and the capital of the late Shang Dynasty was Zhaoge, in Henan Province, far away from the coast.  So how would typhoons have affected an inland city so drastically?

But the models showed that the altered wind direction didn't just shove storms toward China, it also fed warm, moist air inland -- atmospheric rivers.  These air currents flow until they meet a mountain range, and the humid air masses experience adiabatic cooling as they rise in elevation, causing them to dump their moisture as rain or snow on the windward sides of mountains.

In other words, the rain shadow effect.  The outcome; suddenly northern and central China were way wetter than they had been.

Now, enter the archaeologists.  One of the most common items in Shang-age archaeological sites are oracle bones -- usually the scapulae of ox, horses, or deer that are thrown into a fire, and the resulting cracks and scorch marks read by a shaman.  But fortunately for us, the shamans -- recall the Shang's development of the first Chinese writing system -- also recorded on the oracle bones what questions had been asked, and what the shaman's assessment of the results had been (i.e., the answer to the question).

And in the last fifty years of the Shang Dynasty, just about all of the oracle bones have to do with the weather.  A lot of them basically ask, "When the hell is it going to stop raining?"

A Shang Dynasty oracle bone [Image licensed under the Creative Commons Orakelknochen, CC BY-SA 3.0]

At the same time as this, the archaeologists also note the abandonment of village sites near riverbanks, an increase in burial of sites under riverine sediments, and the relocation of towns onto higher ground.

What Ke Ding and his colleagues concluded is that the Shang were weakened by years of floods, probably accompanied by poor harvests and resulting famine.  This set the stage for the Zhou rebellion, and the destruction of a dynasty that had ruled China for six centuries.

Now, here's the kicker.  The researchers caution that we're seeing a similar pattern today -- anthropogenic global warming is increasing oceanic surface temperatures, and the Pacific Ocean is seeing extended and more powerful El Niño events.  As Mark Twain observed, "History doesn't repeat, but it often rhymes."

Oh, except that noted climate scientist Donald Trump has evaluated the available data, and decided that global warming is a hoax, and the climatologists are big fat poopyheads.  So there's that.

Anyhow, it's a fascinating and elegant piece of research, and shows how creative the scientific enterprise can be.  Collaboration is the heart of discovery, and here we have an entire team of experts from disparate fields pitching in together to solve a historical puzzle.  One that, despite Trump's pronouncements, we had damn well better pay attention to today.

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The blink of an eye

A while back I wrote about the rather terrifying idea of the "Great Filter" -- that life, especially sentient life, might be rare in the universe because there are hurdles of varying difficulties (those are the "filters") that have to be overcome in order to get there.  These include:

• abiotic synthesis of organic molecules
• assembly of those molecules into cells
• development of cells of sufficient complexity to segregate competing biochemical reactions (eukaryotic cells)
• multicellularity
• the evolution of intelligence
• the development of technology

The first two of these seem -- at least insofar as our models currently predict -- to be fairly straightforward, so most biologists expect that Earth-like planets in the habitable zone probably have lots of single-celled organisms.  The rest?  Uncertain.  After all, we have a sample size of one to analyze, so it's a little hard to make any inferences based on that.

All of this, of course, is by way of explaining the Fermi paradox -- that despite years of searching, we've found no good evidence of extraterrestrial civilizations.  But an even more alarming possibility is that the Great Filter lies ahead of us.  Perhaps all of those steps are surmountable, so stable rocky planets with atmospheres in their star's habitable zone ultimately do evolve intelligent life, but then it inevitably self-destructs.

I'm thinking about this today because yesterday I watched a short talk by the brilliant physicist Brian Cox about the topic, and while most of what he covered was information (and theorizing) I'd heard before, there was one piece of it that I honestly hadn't considered.  Suppose the Great Filter really does lie in the future, and technological civilizations always eventually come to naught.  Perhaps it's through nuclear annihilation, or biological warfare, or the catastrophic backfire of AI -- certainly at the moment, I don't think any well-informed person would argue that these are far-fetched possibilities -- but whatever the cause, intelligent species aren't intelligent enough to save themselves indefinitely, and their brief, fitful candle flames just as quickly wink out.

What that means is that at any given time, there might only be one or two civilizations in the entire galaxy, because their lifetimes are so short.  Cox describes visiting Frank Drake, the brilliant astronomer who gave his name to the Drake Equation.  Drake's hobby was raising orchids, and Cox said that on the day of his visit, he got to see one of the rare plants in Drake's greenhouse flowering.  Drake told him that this particular species only flowers once a year, and the flower is only open for a day or two; after that, the plant goes back into its previous quiescence.  Cox had simply lucked out and visited on the right day.

Could civilizations, Cox wonders, be like this orchid -- rising and falling so fast that you only have a moment's chance of seeing them before they collapse?

If this is true, then the galaxy's planets could be littered with the debris of dead civilizations.  Imagine it... planet after planet with archaeological sites as the only evidence that an intelligent species had once lived there.

It reminds me of the brilliant Star Trek: The Next Generation episode "The Chase," in which Captain Picard (himself an erstwhile archaeology student) is given a priceless, twelve-thousand-year-old ceramic piece made by the Kurlan sculptor called "the Master of Tarquin Hill" -- the product of an extinct culture now known only from the artifacts they left behind.

Of course, even artifacts don't last forever.  A few years ago, a couple of researchers considered the "Silurian Hypothesis" -- the idea that there may have been earlier, non-human civilizations right here on Earth.  (Named, I feel obliged to point out, after the reptilian Silurian race from Doctor Who.)  The question they asked was, if there had been such a civilization -- say, a hundred million years ago -- would there be any traces left?

And the answer they came up with was "No."  Likewise, the chances of any human-made artifacts from today lasting a hundred million years into the future is vanishingly small.  Consider that there's damn little left from humans who lived ten thousand years ago.  Nothing we make is likely to last a hundred million -- however rock-solid and permanent our creations may feel to us.

Understand that they're not saying there was such a civilization; only that if there had been, we'd probably have no way to know about it.  So even if there have been many intelligent species rising and falling throughout the galaxy, the marks they left on their planets would be nearly as ephemeral.

It's kind of a bleak prospect, isn't it?  All of our strutting and fretting is, for better or worse, over in the blink of an eye.  It reminds me of Percy Shelley's haunting poem "Ozymandias," which feels like a good way to conclude:

I met a traveller from an antique land,
Who said—"Two vast and trunkless legs of stone
Stand in the desert.  Near them, on the sand,
Half sunk a shattered visage lies, whose frown,
And wrinkled lip, and sneer of cold command,
Tell that its sculptor well those passions read
Which yet survive, stamped on these lifeless things,
The hand that mocked them, and the heart that fed;
And on the pedestal, these words appear:
'My name is Ozymandias, King of Kings;
Look on my Works, ye Mighty, and despair!'"
Nothing beside remains.  Round the decay
Of that colossal wreck, boundless and bare
The lone and level sands stretch far away.

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Taken by the flood

Not long ago, I was listening to one of my favorite pieces by Claude Debussy, The Drowned Cathedral, and I started to wonder what legend had given rise to the piece.  After a little bit of digging, I found out that Debussy got his inspiration from the Breton legend of the mythical city of Ys, built on the coast of Brittany behind a seawall.  Princess Dahut the Wicked tempted fate by engaging in all sorts of depravity therein, despite the warnings of Saint Winwaloe that God was watching and would smite the ever-loving shit out of her if she didn't mend her ways.  (Okay, I'm paraphrasing a bit, here, but that's the gist.)  Anyhow, Dahut wouldn't listen, and one night a storm rose and broke through the seawall, and the ocean flowed in over the city.  Dahut's father, King Gradion, escaped on a magical horse with Dahut riding behind him, but Winwaloe shouted at him, "Push back the demon riding with you!"

So Gradion did what any good father would do, namely, he shoved his daughter into the sea, which "swallowed her up."  The sea also swallowed the rest of Ys, which kind of sucked for the inhabitants, given that it wasn't really their fault that the princess was a little morally challenged.  As for Princess Dahut herself, she became a mermaid, and is still hanging around to tempt sailors into jumping into the ocean to their deaths.  And according to legend, on windy days, you can still hear the bells of the drowned cathedral of Ys if you stand along the shore of Douarnenez Bay.

The Flight of King Gradion, by Évariste-Vital Luminais, 1884 (in the Musée des Beaux-Arts de Quimper, Brittany, France)  [Image is in the Public Domain]

Kind of a cool story, in a heartless, Grimm's Fairy Tales sort of way, even if Winwaloe and Gradion, not to mention God, do come across as pro-patriarchy assholes.  And whatever else you think, you have to admit that Debussy's piece is gorgeous (go back and give a listen to the recording of it I linked above, if you haven't already done so).

What I haven't told you, yet, though, is the other thing I found out while looking up the Legend of the Drowned City of Ys...

... is that French archaeologists diving only a few kilometers away from Douarnenez Bay just found the remnants of a seawall, now underwater, dating from seven thousand years ago.

The structure, found off the Ile de Sein at Brittany's westernmost tip, is a 120 meter long, twenty meter thick, two meter high wall with large granite monoliths sticking up from it at regular intervals.  When it was built, it would have been right at the shoreline -- at that point, we were just coming out of the last ice age, and the sea level was considerably lower than it is now -- but now it's under nine meters of water.  The archaeologists are unsure of its purpose, but given the legend the likeliest answer is that it was a seawall to prevent flooding.

"It was built by a very structured society of hunter-gatherers, of a kind that became sedentary when resources permitted.  That or it was made by one of the Neolithic populations that arrived here around 5,000 B.C.E.," said archaeologist and study co-author Yvan Pailler.  "It is likely that the abandonment of a territory developed by a highly structured society has become deeply rooted in people's memories...  The submersion caused by the rapid rise in sea level, followed by the abandonment of fishing structures, protective works, and habitation sites, must have left a lasting impression."

What strikes me about all this is that building this thing took an astonishing amount of work.  The mass of the stones is estimated at 3,300 tonnes.  Putting together a wall of this size, without any heavy equipment, was not an insignificant task.

But then, neither are Stonehenge, the Mayan and Egyptian and Aztec pyramids, Machu Picchu, Angkor Wat, the Easter Island moai, and the Great Wall of China.  To name a few.  I guess if you have sufficient motivation and building materials, not to mention large amounts of cheap and/or slave labor, there's not much you can't do.

But the whole thing in this case is rather sad, really.  The seawall ultimately failed; as the Tenth Doctor said, in the iconic (and tragic) episode of Doctor Who "The Waters of Mars," "Water is patient, Adelaide.  Water just waits.  Wears down the cliff tops, the mountains.  The whole of the world.  Water always wins."

It certainly did in this case.  The sea level rise between fourteen and five thousand years ago flooded the entirety of Doggerland, which used to connect Britain to mainland Europe but now lies at the bottom of the North Sea, and the Gulf of Carpentaria, which now separates Australia from New Guinea.  It's unsurprising that changes of this magnitude would stick around in the cultural consciousness -- and get worked into folk tales and legends.

So while the story of the wicked Princess Dahut and virtuous (if ruthless) Saint Winwaloe and the magical horse is certainly made up, the flooding of the city of Ys might have a basis in fact.  Further indication that when indigenous people tell us what happened in the past, maybe we should pay better attention.

And to stay in the same mood, let's indulge in a little more Debussy, shall we?  How about his orchestral work, The Sea?  That seems a fitting way to end this discussion, doesn't it?

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Burning down the house

It's always thin ice to make too many assumptions about why our distant ancestors did what they did.

Most of the time, all we have is the traces of what they made to go by, and that only gets you so far.  Imagine some future archaeologist got a hold of some of the artifacts from our civilization.  These kinds of remains are always fragmentary; like fossilization, the preservation of human-made objects is largely a matter of chance, and the vast majority of them don't survive.  So... suppose a future archaeologist found a bent, rusted hand-cranked can opener.

What would (s)he make of that?

Unless there was the fortuitous survival of a can of beans nearby, they might never figure out what it was used for.

So it would very likely be placed in a museum with a card saying "Probably used in rituals."

I'm not meaning to cast aspersions on the archaeologists, here.  To their credit, they are unhesitating in saying "we're not sure" -- something every good scientist should be willing to do.  We humans are just endlessly curious, and we want solutions to mysteries.  Leaving the question open might be the most honest thing for a skeptic to do, but it's also profoundly unsatisfying.

Especially when we have lots of evidence.  Like, for example, the strange case of the "Burned House Horizon" -- the layers of accumulated archaeological evidence (horizons) in a large part of eastern Europe showing evidence of entire settlements being repeatedly burned to the ground.

For over two and a half millennia.

The earliest evidence we have of the practice is from the the Starčevo–Körös–Criş Culture, which spanned from what is now Serbia all the way to eastern Bulgaria, and dates to around 5,900 B.C.E.  The latest is from the Cucuteni-Trypillian Culture, which is found from Romania to western Ukraine, in 3,200 B.C.E.  How the behavior spread is uncertain -- whether one culture learned it from the other, or one culture descended from the other, is unknown.  Unfortunately, it's usually impossible to differentiate between cultural (learned) transmission and genetic transmission, barring (even more) fortuitous survival of adequate human remains from which to extract DNA.

So we don't know how it spread, or why.  Some anthropologists believe that it didn't spread as a behavior; there are a few who claim the Burned House Horizon is simply preserving a record of accidental house fires, tribal violence, or both.

A lot of others disagree, however.  Mirjana Stevanović of the University of California - Berkeley, writing in the Journal of Anthropological Archaeology, makes a persuasive argument that a simple house fire of a wattle-and-daub, thatched-roof structure -- whether accidental or deliberately set -- wouldn't cause temperatures sufficient to produce the kind of vitrification of clay that is seen all through the Burned House Horizon.  In fact, Stevanović, along with archaeologists Arthur Bankoff and Frederick Winter, actually built a house using the techniques known to have been utilized by cultures in Neolithic eastern Europe, then burned it down:

[Image credit: Stevanović et al., 1997]

They found the only way they could get the clay to vitrify was to pile up enormous amounts of brush, straw, and other burnables against the foundation of the house.

In other words, the houses seem to have been burned deliberately, and regularly, by their owners.  But why?

Hypotheses vary from the practical to the bizarre.  Some suggest that it was a way of destroying the habitats of disease-carrying pests during the regular epidemics our forebears were prey to.  Others think that because wattle-and-daub structures eventually become dilapidated, it was a way of getting rid of them so their owners could rebuild -- using the convenient fired clay bricks produced by the burning.  Some have even suggested that it was a religious ritual they've called domicide -- the symbolic killing of the houses in an entire settlement, followed by another cycle of "birth."  (The adherents of this model point out that in the Cucuteni-Trypillian Culture, the one we know the most about, the complete burning of houses in a settlement happened on average every 75-80 years -- back then, pretty much the upper bound of a human lifespan.  Coincidence?)

The thing is, though, all we have is the evidence, which amounts to 2,500 years' worth of burned rubble, distributed over a (very) wide geographical region.  The reason why this happened could be any of the above, or a combination, or one thing during one period and something else during another, or an entirely different reason we haven't yet dreamed up.  It's a puzzle.

But then, so is much of our history.  If you're interested in the past, you have to get used to that.  Even during periods when there were written records, the sad fact is that a great many of those documents didn't survive to the present, and whatever was contained within them is gone forever.  But in non-literate cultures, we have even less -- just broken remnants of what they did.

Why they did these things, and in fact who those people were, will always remain in the realm of informed speculation.

So that's this morning's rather unsatisfying conclusion.  Burned houses, ancient cultures, and the persistence of mystery.  It's the way of things in science, though, isn't it?  As Richard Feynman put it, "I would rather have questions that cannot be answered than answers that cannot be questioned."

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Mysterious mosaic

I've mentioned before how much I love a good mystery, and there's a hell of a good one underneath the town of Margate, Kent, England.

It's called the "Shell Grotto."  It consists of a set of steps, framed by an arch, leading down into a serpentine passageway through the chalk bedrock.  Then there's a room called the "Rotunda," with a circular arched dome over walls arranged in an equilateral triangle.  This leads into a winding underground tunnel about two and a half meters high by twenty-one meters long ending in a five-by-six meter rectangular space that's been nicknamed the "Altar Chamber."

The entire thing is lined by mosaics made out of seashells.

4.6 million of them.

Looking up into the Rotunda [Image is in the Public Domain]

The mosaic designs are constructed from the shells of mussels, cockles, whelks, limpets, scallops, and oysters, all relatively common in nearby bays.  They feature patterns appearing to be stylized suns and stars, floral motifs, and some purely geometric or abstract designs.

A detail from one of the mosaics [Image licensed under the Creative Commons Emőke Dénes, Shell Grotto, Margate, Kent 3 - 2011.09.17, CC BY-SA 4.0]

The Shell Grotto was discovered when the entrance was stumbled upon in 1835, and immediately became a sensation.  The West Kent Advertiser newspaper wrote the following in 1838 (which also should have taken first place in the Run-On-Sentence of the Year Contest):

Belle Vue cottage, a detached residence, has been lately been purchased by a gentleman, who, having occasion for some alterations, directed the workmen to excavate some few feet, during which operation the work was impeded a large stone, the gentleman being immediately called to the spot, directed a minute examination, which led to the discovery of an extensive grotto, completely studded with shells in curious devices, most elaborately worked up, extending an immense distance in serpentine walks, alcoves, and lanes, the whole forming one of the most curious and interesting sights that can possibly conceived, and must have been executed by torch light; we understand the proprietor intends shortly to open the whole for exhibition, at small charge for admission.

No one in the area had any memory of who had built it and why, so this opened up the floodgates for speculation.  Historian Algernon Robertson Goddard, writing in 1903, listed the possibilities as follows:

• a seventeenth- or eighteenth-century rich person's "folly"
• a prehistoric calendar
• a meeting place for "sea witches" (whoever those might be)
• something connected to the Knights Templar

This last one made me snort-laugh, because there's a general rule that if there's something mysterious and you want to make it more mysterious, throw in the Templars.  Umberto Eco riffed on this theme in his brilliant, labyrinthine novel Foucault's Pendulum, when he had his character Jacopo Belbo explaining to the main character (Casaubon) the difference between cretins, fools, morons, and lunatics:

A lunatic is easily recognized.  He is a moron who doesn't know the ropes.  The moron proves his thesis; he has a logic, however twisted it may be.  The lunatic, on the other hand, doesn't concern himself at all with logic; he works by short circuits.  For him, everything proves everything else.  The lunatic is all idée fixe, and whatever he comes across confirms his lunacy.  You can tell him by the liberties he takes with common sense, by his flashes of inspiration, and by the fact that sooner or later he brings up the Templars.

Be that as it may, we still don't know who built the Shell Grotto.  There are also extensive shell mosaics that were created by the Romans and the Phoenicians, but the archways in the Rotunda have impressed archaeologists as being more consistent with those used in twelfth-century Gothic cathedrals (although not nearly as large, obviously), and therefore not nearly old enough to be Roman or Phoenician in origin.  It seems like the simplest thing to do would be to carbon date one of the shell fragments -- mollusk shells are largely calcium carbonate, so it should be possible -- but the site is under private ownership, and to my knowledge no one has done that yet.

So the Shell Grotto remains mysterious.  It certainly represents an enormous amount of skill and dedication, whoever created it; just cutting a tunnel that long through chalk bedrock would take extensive and back-breaking labor, not to mention then hauling over four million shells there and somehow getting them to adhere to the walls in beautiful and flowing artistic patterns.  It's open for visits from the public, and next time I'm in England I'd love to check it out.  Just another reason to travel to a country I love -- as if I needed another one.

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Life during chaos

If there's one place and historical period I could choose to know more about, it would be England during, and immediately following, the withdrawal of the Romans in the fifth century C. E.

For one thing, this would settle once and for all the question of whether King Arthur was a real historical personage, a completely fabricated legend, or somewhere in that gray area in between.  Whoever (or whatever) he was, I doubt our picture of him was anywhere near accurate:

This one, either:

Both of which are kind of a shame, for completely different reasons.

In any case, besides finding out more about the King of the Britons, I'd love to have more knowledge about what exactly was going on back then.  There are very few written records from Britain following the withdrawal of Roman troops from the northern and western parts of the island by the (usurping) Emperor Magnus Maximus in 383.  Things stabilized a little after Magnus was deposed and executed in 387, but Roman rule in the west was definitely crumbling.  The final blow came in 410 when Roman settlers in what is now southern England -- many of whom had been born there -- pleaded for help from Rome against the "barbarian" Celts, who were not above taking advantage of the instability, and Emperor Honorius basically told them to bugger off and take care of their own problems because he had more pressing concerns, the biggest being that Rome had just been sacked by a shitload of Visigoths.

This meant that running England fell to whoever could manage to keep their head on their shoulders long enough to do so.  In some places, these were the Romano-British magistrates who chose not to decamp when the powers-that-be back on the Italian peninsula left them to their own devices; in other places, Celtic or Pictish warlords.  This period saw the beginning of the Saxon invasions from what is now Denmark and northern Germany, something that would historically and linguistically change the entire face of the country.

But the fact remains that we don't know much for certain.  The earliest record we have of the era was written at least a century after the events it chronicles -- Gildas's De Excidio et Conquestu Britanniae (On the Ruin and Conquest of Britain) -- but it contains as much hagiography and finger-wagging about pagan sinfulness as it does history.  (For what it's worth, Gildas doesn't even mention King Arthur; the first time the Once and Future King appears in a written record is Nennius's Historia Brittonum, from around 900.  If Arthur was real, this omission seems a little curious, to say the least.)

In any case, between the withdrawal of the Romans in 410 and the unification of England under King Æthelstan of Wessex in 927, we don't have a lot of reliable sources to go on.  To be fair to the English, they had other fish to fry during those intervening centuries, what with the horrific Plague of Justinian ripping its way through Europe in the middle of the sixth century, repeated invasions by the Angles and Saxons, and then the depredations of the Vikings, starting with their destruction of the "Holy Island" of Lindisfarne in 793.  Virtually the only people who could read and write back then were monks and clerics, and you have to figure that what they'd have been writing while they were being hacked to bits would have been gruesome reading anyhow.  (Possibly, "Here may be found the last words of Joseph of Arimathea.  He who is valiant and pure of spirit may find the Holy Grail in the Castle of Aaarrrrggh.")

The topic comes up because a new study out of the University of Cambridge that found something surprising -- at least in one region, the economy didn't tank completely when the Romans jumped ship.  Pollution by heavy metals, as nasty as it can be, is a decent proxy record for the robustness of trade and industry; when things are really bad, chances are you're not going to be doing much smelting of silver, iron, and lead.  The team, led by archaeologist Martin Millett, found that in sediment cores from the River Ure in Yorkshire, the levels of metal contamination stayed fairly constant throughout the period.  This is evidence that the Roman settlement at Aldborough -- the Roman Isurium Brigantum -- continued to be a trading hub despite the chaos.

This, of course, doesn't tell you what was happening in other parts of the island.  It could be that Aldborough just happened to hang on longer, for reasons we'll probably never know.  Eventually, the plague and the repeated invasions caught up with them, too, and in the seventh and eighth centuries, there wasn't that much happening, at least not smelting-wise.  The "Dark Ages" in England are "dark" not because they were necessarily any more barbaric than any other period, but because we know so little about them -- and this gives us at least a small piece of information about one town's fate after the fall of the Roman Empire.

I'm always attracted to a mystery, and there's something compelling about this period.  Undoubtedly why there have been so many works of fiction that are set in pre-Norman England.  It's nice to have one more bit of the puzzle, even if neither the worlds of Sexy King Arthur nor Silly King Arthur are likely to come anywhere near the reality of what life was like back then.

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