Sheeple update

Sometimes I have to check in on the r/conspiracy subreddit just to see what new nutty conspiracy theories are out there.  I try to make sure that I've girded my loins and stiffened my spine beforehand, because the level of complete batshit insanity demonstrated by the regular contributors really has to be seen to be believed.  On my most recent visit, I was not disappointed -- there are four truly amazing conspiracy theories there that I was unaware of, if by "amazing" you mean "ideas that you would only come up with if you have a single Milk-Dud where most of us have a brain."

First, we have astronomer Paul Cox inadvertently inducing multiple orgasms in the Planet X crowd by making a joke while analyzing a video of the transit of Mercury across the Sun.  "See that mysterious bright glow on the right side?  What do you suppose that is?" Cox asks, pointing to what is clearly a lens flare.  "Do you think it's the mysterious planet Nibiru?"  He then goes on to say, "We don't cover things up like NASA does."

Well, you don't joke about such matters, not when people like YouTube contributor "EyesOpen37" are listening.  "EyesOpen37" doesn't believe in lens flares.  Nor, apparently, in astronomers having senses of humor.  "EyesOpen37" thinks it's much more likely that a vague, diffuse glow is unequivocal evidence that a huge planet inhabited by our reptilian alien overlords is coming into the inner solar system for a visit, and NASA is desperately trying to make sure that no one finds out about it.

I'll bet Paul Cox is currently banging his forehead against the wall and wishing like hell he'd never opened his mouth.

"I wonder if these guys are using this transit of Mercury to warn us about Nibiru?" muses "EyesOpen37," in a tone of voice that indicates that the answer is obviously "yes."  And the people who posted comments on his YouTube submission agree wholeheartedly. Here's a sampling:

• Thank you so much for uploading this video!! And I'm so glad a reputable person has finally spoke out!  Paul Cox is a good person and so are you to release this info!! :)
• I hope you have this video backed up so you can keep re-posting if it gets deleted!!  WOW!!
• Want to know how it'll end?  Read Revelation 8:8 on. Repent and seek your Saviour.  God bless.
• It's controlled.  How many dead astronomers do we have to date?  Maybe a joke is the only way he can put it out there.  Bottom line....he was deliberate.

Yes, there are lots of dead astronomers. Aristarchus, Hypatia, Nicolaus Copernicus, Tycho Brahe, Johannes Kepler, Edmund Halley, Henrietta Swan Leavitt... the list goes on and on.  There's only one possible answer: they were all killed to keep them silent about the Planet Nibiru.

Speaking of dead people, our second conspiracy theory is about how Osama bin Laden is still "alive and well and living in the Bahamas."  And of course, there's nothing that lends credence to a wacko idea like saying "Edward Snowden says so."   (The only thing that's better would be saying "Nikola Tesla says so.")   According to the site Humans are Free, Snowden had the following to say about it:

I have documents showing that Bin Laden is still on the CIA’s payroll.  He is still receiving more than $100,000 a month, which are being transferred through some front businesses and organizations, directly to his Nassau bank account.  I am not certain where he is now, but in 2013, he was living quietly in his villa with five of his wives and many children.  

Osama Bin Laden was one of the CIA’s most efficient operatives for a long time.  What kind of message would it send their other operatives if they were to let the SEALs kill him?  They organized his fake death with the collaboration of the Pakistani Secret services, and he simply abandoned his cover.  

Since everyone believes he is dead, nobody’s looking for him, so it was pretty easy to disappear.  Without the beard and the military jacket, nobody recognizes him.

Of course, at the bottom of the page, we read the following disclaimer:

Note: The original source of this information has not been validated nor confirmed by any other source.

In other words, even though we're not sure if it's true, you're clearly a KoolAid-Drinkin' Sheeple if you don't believe it.

And since bin Laden is still alive, it must therefore follow that lots of other Big Bad Guys are, too.  For our third dip in the deep end of the pool, we go to the site OrionStar 3000, wherein we learn that Josef "The Angel of Death" Mengele is not only still alive, he is also the "Zodiac Killer" who killed seven people in the late 1960s in California.

Now, you might be thinking, "How can Mengele be alive?  He was born in 1911.  He'd be 109 years old by now."  But this just shows that you're not thinking outside the box.  (And by "the box" I mean "anything that makes sense.")  Here's what he looked like in 2001, when he was a mere 90 years old, in a photograph taken at a "Brotherhood of Aryan Nations/KKK/ Bush Fundraiser in Hernando, Florida.":

Which, you have to admit, is looking pretty good for a 90-year-old. Here's Mengele during World War II:

So I think can all agree that's a definitive match.

As far as how Mengele could still be so spry despite his age, we're told, "Mengele looks much younger than he really is due to years of face-lifts, anti-aging hormone injections & alleged cannibalism!"

And if that wasn't enough, we also find out the following alarming stuff:

• [SS Lieutenant Colonel] Otto Skorzeny faked Hitler's death!  Nazi Germany Really Won WWII!
• Hitler lived to be the oldest man in America until he died at the age of 114 years in 2/2004 in the Bethesda, MD Naval Hospital.
• The son of Tesla's illegal immigrant German Born accountant George H. Scherff Sr., SS Nazi spy George H. Scherff Jr. aka: US Navy Pilot: George H.W. Bush murdered his two TBF Avenger crew members by bailing out of his perfectly good airplane.  Bush became a heroin junkie to try to escape his guilty conscience.

Scarier still, this site doesn't have a disclaimer.  So it must all be true, right?

Of course right.

The last entry in our Batshit Crazy Sweepstakes was one that appeared on r/conspiracy almost simultaneously with my being sent the link by my son, who is following in his old man's footsteps in having a nose for sniffing out lunacy.  This one comes our way via the Jerusalem Post, of all places, and is about retired Israeli general Haim Eshed, who for thirty years headed the Israeli Space Security Agency.  During those three decades he appears to have spent his spare time riding on a pogo stick in a room with low ceilings, because now he's claiming that there's a "Galactic Federation" that has been in contact with governments all over the Earth, and the earthlings and the aliens have a jointly-operated base on Mars.

Apparently the Federation is largely benevolent, but they'd prefer it if the inhabitants of the Earth didn't know about them, making Eshed's tell-all a little puzzling.  In fact, Donald Trump was warned off revealing the aliens' presence by the aliens themselves.  The Federation members said they preferred to wait until humans "evolve and reach a stage where we will... understand what space and spaceships are."

I must admit that wanting to wait till humans evolve is reasonable if they've been in contact with Donald Trump.  In fact, after talking to Donald Trump, I'm a little surprised that they didn't just conclude "there's no intelligent life here" and nuke the entire planet.

Eshed's decision to flout the Federation's commands becomes more understandable when you find out that he just released a book, entitled The Universe Beyond the Horizon: Conversations with Professor Haim Eshed.  So Eshed's attitude seems to be "fuck secrecy and stern warnings by the Men In Black when there's money to be made."

So that's our fun excursion through CrazyTown for today. I hope you enjoyed it.  Myself, I'm wondering if I can get a hold of any of that anti-aging stuff they're using on Mengele.  I'm hoping I don't have to resort to cannibalism.

*************************************

I've always had a fascination with how our brains work, part of which comes from the fact that we've only begun to understand it.  My dear friend and mentor, Dr. Rita Calvo, professor emeritus of human genetics at Cornell University, put it this way.  "If I were going into biology now, I'd study neuroscience.  We're at the point in neuroscience now that we were in genetics in 1900 -- we know it works, we can see some of how it works, but we know very little in detail and almost nothing about the underlying mechanisms involved.  The twentieth century was the century of the gene; the twenty-first will be the century of the brain."

We've made some progress in recent years toward comprehending the inner workings of the organ that allows us to comprehend anything at all.  And if, like me, you are captivated by the idea, you have to read this week's Skeptophilia book recommendation: neuroscientist Lisa Feldman Barrett's brilliant Seven and a Half Lessons About the Brain.

In laypersons' terms, Barrett explains what we currently know about how we think, feel, remember, learn, and experience the world.  It's a wonderful, surprising, and sometimes funny exploration of our own inner workings, and is sure to interest anyone who would like to know more about the mysterious, wonderful blob between our ears.

[Note: if you purchase this book using the image/link below, part of the proceeds goes to support Skeptophilia!]

The galactic shredder

One of the beliefs of our ancestors that has taken the hardest hit from science is that the heavens are static.

The (apparent) movement of the stars and planets against the backdrop of the night sky seemed so orderly that early astronomers like Ptolemy thought they moved in circles -- the perfect symmetry of the circle seemed appropriate for the divine reaches of the heavens.  It's one of the reasons that comets and supernovas upset everyone so much.  They were unpredictable, coming and going with no warning and no apparent cause, so they had to be portents of evil.

Then along came Tycho Brahe and Kepler and Newton, and science demonstrated that even if the movement of the planets wasn't in perfect circles, they did obey fixed mathematical rules that allowed the religious to breathe a sigh of relief (once they stopped putting scientists under house arrest or burning them at the stake).  Orderliness returned, even if it wasn't the order Ptolemy envisioned.  As Galileo put it, "Mathematics is the language in which God wrote the universe."

But even that didn't hold.  Edmond Halley (of Halley's Comet fame) discovered that the stars' positions were changing, that the "eternal heavens" weren't so eternal after all.  Einstein and Schrödinger showed us that Newton's vision of the cosmic rule book was wrong, or at least incomplete.  Heisenberg demonstrated that on some level, reality is fuzzy, that there's an inherent uncertainty that isn't an analytical flaw or poor experimental technique, it's built into the system.  If we gain precision in one measurement, we lose precision in another, and there's no way to get rid of the blur because the fundamental stuff of the universe is itself blurry.

Spooky action at a distance.  Quantum entanglement.  Bell's inequality.  Dark matter.  Dark energy.  All topics I've dealt with here before, and all of which emphasize that however far we've come in our understanding of the universe, we still have a deeply incomplete picture of things.

And still the stars turn in their courses, leading us to see permanence where there is none.

All of this disquieting stuff comes up because of a paper that appeared two weeks ago in Nature Astronomy called, "Detection of the Milky Way Reflex Motion Due to the Large Magellanic Cloud Infall."  In it, astrophysicists Michael S. Petersen and Jorge Peñarrubia of the University of Edinburgh have demonstrated that the Milky Way galaxy itself, which we picture as serenely turning in space like some kind of slow, tranquil whirlpool, is actually being torn apart.

The culprit is the Large Magellanic Cloud, an elliptical "satellite" galaxy named for Ferdinand Magellan, the Portuguese explorer who was the first white European to describe it.  The reason something so (relatively) small can have such a large effect is not only its proximity, but its dark matter content, which seems to be disproportionally high.  The authors write:

The Large Magellanic Cloud is the most massive satellite galaxy of the Milky Way, with an estimated mass exceeding a tenth of the mass of the Milky Way.  Just past its closest approach of about 50 kpc, and flying past the Milky Way at an astonishing speed of 327 km s−1 (ref. 6), the Large Magellanic Cloud can affect our Galaxy in a number of ways, including dislodging the Milky Way disk from the Galactic centre of mass.  Here, we report evidence that the Milky Way disk is moving with respect to stellar tracers in the outer halo in a direction that points at an earlier location on the Large Magellanic Cloud trajectory.  The resulting reflex motion is detected in the kinematics of outer halo stars and Milky Way satellite galaxies with accurate distances, proper motions and line-of-sight velocities.  Our results indicate that dynamical models of our Galaxy cannot neglect gravitational perturbations induced by the Large Magellanic Cloud infall, nor can observations of the stellar halo be treated in a reference frame that does not correct for disk reflex motion.

Did you catch that bit about "dislodging the Milky Way disk from the Galactic centre of mass?"

That's scientific-ese for "ripping it to shreds."

[Image licensed under the Creative Commons 

ESO/VMC Survey, The Large Magellanic Cloud revealed by VISTA, CC BY 4.0

So if anyone thought the Milky Way was a more-or-less permanent structure, this study killed that idea.  "This discovery definitely breaks the spell that our galaxy is in some sort of equilibrium state," said co-author Jorge Peñarrubia, in a press release from the University of Edinburgh.  "Actually, the recent infall of the LMC is causing violent perturbations onto the Milky Way.  Understanding these may give us an unparalleled view on the distribution of dark matter in both galaxies."

As with many studies, this one brings up more questions than it answers.  Why is the LMC moving at such an "astonishing" rate?  (As cautious as most scientists are in their word choice, the fact that they called its speed "astonishing" in a major scientific journal is eye-opening indeed.)  Why does it have enough dark matter to perturb the motions of a galaxy ten times larger, both in mass and in diameter, from a distance of 160,000 light years away?  What ultimate effect will the LMC's swift passage have on the shape of our own galaxy?

For me, it just reinforces something that has come up in Skeptophilia many times; we are very, very, very small in an absolutely enormous universe.  It's both awe-inspiring and a little frightening.  A good thing, probably, that we humans can't stay focused for long on our cosmic insignificance; our day-to-day needs and demands take over pretty quickly, and after all, even the astrophysicists have to fix lunch and renew their drivers' licenses and sleep at night.

But pondering this kind of thing even for a little while is kind of overwhelming, isn't it?  I like to take a quick look, but I don't think our brains are built to stare into the void for any extended period of time.  So if you're looking for me, I'll be huddled under my blankie for the rest of the day.

*************************************

I've always had a fascination with how our brains work, part of which comes from the fact that we've only begun to understand it.  My dear friend and mentor, Dr. Rita Calvo, professor emeritus of human genetics at Cornell University, put it this way.  "If I were going into biology now, I'd study neuroscience.  We're at the point in neuroscience now that we were in genetics in 1900 -- we know it works, we can see some of how it works, but we know very little in detail and almost nothing about the underlying mechanisms involved.  The twentieth century was the century of the gene; the twenty-first will be the century of the brain."

We've made some progress in recent years toward comprehending the inner workings of the organ that allows us to comprehend anything at all.  And if, like me, you are captivated by the idea, you have to read this week's Skeptophilia book recommendation: neuroscientist Lisa Feldman Barrett's brilliant Seven and a Half Lessons About the Brain.

In laypersons' terms, Barrett explains what we currently know about how we think, feel, remember, learn, and experience the world.  It's a wonderful, surprising, and sometimes funny exploration of our own inner workings, and is sure to interest anyone who would like to know more about the mysterious, wonderful blob between our ears.

[Note: if you purchase this book using the image/link below, part of the proceeds goes to support Skeptophilia!]

The signature of the creator

The Star Trek: The Next Generation episode "The Chase" is justly revered by Trekkies, and also by people who simply like a good story.  The gist -- giving as little in the way of spoilers as I can manage, if you've not seen it -- is that there's a message implanted in our DNA and the DNA of alien species across the galaxy.  No one species has the entire thing, so to find out what it means requires getting tissue samples from all over the place, extracting the piece of the message, then somehow putting the entire thing together to decipher what it says.

A secret code dispersed through time and space, so to speak.

While the quasi-scientific explanation behind the whole thing was a little dubious for those of us who know something about genetics and evolution, it was a hell of a good idea for a story.  A mysterious, super-powerful someone left its thumbprint on life everywhere in the universe, and there the message has sat, waiting for us to become smart enough and technologically advanced enough to find it.

"The Chase" brings up a theological question I've debated before with religious-minded friends; how, starting from outside of the framework of belief, you could tell there was a God by what you see around you.  I often hear "natural beauty" and "love and selflessness" brought up, but (unfortunately) there seems to be enough ugliness, hatred, and selfishness to more than compensate for the good stuff.  Put simply, how would a universe with a divine presence look different from one without?  I've never been able to come up with a good answer to that.  To me, the God/no God versions of the universe look pretty much alike.

Which is a large part of why I'm an atheist.  I'm perfectly okay with revising that if evidence comes my way, but at the moment, I'm not seeing any particular cause for belief in any of the various deities humans have worshipped along the way.

What brings all this up is a paper released last week in arXiv called, "Searching for a Message in the Angular Power Spectrum of the Cosmic Microwave Background."  The CMB is a relatively uniformly-spread (or isotropic, as the scientists put it) radiation that is the remnant of the Big Bang.  In the 13.8-odd billion years since the universe started, the searing radiation of creation has become stretched along with the space that carries it until it has an average wavelength of two millimeters, putting it in the microwave region of the spectrum, and that radiation comes at us from everywhere in the sky.

What the author, Michael Hippke of the Sonnenberg Observatory in Germany, proposed was something that is reminiscent of the central idea of "The Chase."  If there was a creator -- be it a god, or a super-intelligent alien race, or whatever -- the obvious place to put a message is in the CMB.  The minor fluctuations ("anisotropies") in the CMB would be detectable by a technological society pretty much from any vantage point in the visible universe, and so hiding a pattern in the apparent chaos would be as much as having a signature from the creator.

So Hippke digitized the most detailed map we have of the CMB, and then estimated what part of the signal would have been lost or degraded in 13.8 billion years due to quantum noise and interference with the much closer and more powerful radiation sources in our own galaxy.  After some intense statistical analysis, Hippke determined that there should be at least a one-thousand-bit remnant of sense somewhere in there, so he set about to find it.

Nothing.

"I find no meaningful message in the actual bit-stream," Hippke wrote.  "We may conclude that there is no obvious message on the CMB sky.  Yet it remains unclear whether there is (was) a Creator, whether we live in a simulation, or whether the message is printed correctly in the previous section, but we fail to understand it."

Despite how I started this post, I have to admit to being a little disappointed.  It was a clever approach, and no one would be more excited than me if he'd actually found something.  I don't honestly like the idea that we live in a chaotic, meaningless universe -- or, more accurately (and optimistically) that the only meaning is the one we create within it.  But if there's one thing I've learned in my sixty years on Earth, it's that reality is under no particular obligation to order itself in such a way that it makes me comfortable.  

But still, if there had been a message there, how cool would that be?  Even if, as the Cardassian commander Gul Ocett said in "The Chase," "it might just be a recipe for biscuits."

*************************************

I've always had a fascination with how our brains work, part of which comes from the fact that we've only begun to understand it.  My dear friend and mentor, Dr. Rita Calvo, professor emeritus of human genetics at Cornell University, put it this way.  "If I were going into biology now, I'd study neuroscience.  We're at the point in neuroscience now that we were in genetics in 1900 -- we know it works, we can see some of how it works, but we know very little in detail and almost nothing about the underlying mechanisms involved.  The twentieth century was the century of the gene; the twenty-first will be the century of the brain."

We've made some progress in recent years toward comprehending the inner workings of the organ that allows us to comprehend anything at all.  And if, like me, you are captivated by the idea, you have to read this week's Skeptophilia book recommendation: neuroscientist Lisa Feldman Barrett's brilliant Seven and a Half Lessons About the Brain.

In laypersons' terms, Barrett explains what we currently know about how we think, feel, remember, learn, and experience the world.  It's a wonderful, surprising, and sometimes funny exploration of our own inner workings, and is sure to interest anyone who would like to know more about the mysterious, wonderful blob between our ears.

[Note: if you purchase this book using the image/link below, part of the proceeds goes to support Skeptophilia!]

When the volcano blows

If you were wondering what the final act of the 2020 fever-dream theater might be, I have a possible contender.

Geologists have just discovered another supervolcano besides Yellowstone.

Supervolcanoes -- known in scientific circles as caldera eruptions -- are insanely powerful.  The famous 1883 eruption of Krakatoa, in Indonesia, was a caldera eruption, but even that was on the small end of things; it blasted 25 cubic kilometers of ash and rock fragments into the air, while the last major eruption of Yellowstone (650,000 years ago) released forty times that much, and covered most of what is now the central United States in a meter or two of ash.

And Toba, another Indonesian volcano, released almost three times more than that, 74,000 years ago -- and some anthropologists think the resulting climate impact nearly wiped out the up-and-coming human race, by some estimates reducing the entire population of humans to only about a thousand individuals.

By comparison, the eruption of Mount Saint Helens in 1980 was pretty much a wet firecracker.

So anyhow, why this all comes up is because we thought we knew where most of the potentially huge calderas were located, and geologists have given a great effort to calming everyone down, saying we have a handle on things and will have plenty of warning if any of them show signs of an imminent eruption.

Turns out, we didn't even know one of them was there.

A cluster of six islands in the Aleutian chain -- Carlisle, Cleveland, Herbert, Kagamil, Chagulak, and Uliaga -- have long been known to be stratovolcanoes, conical, explosive volcanoes of the same type as Mount Vesuvius.  What scientists didn't know until now is that apparently, the magma reservoirs of these six islands are not separate blobs, but one enormous blob underlying the entire island chain.

Just like the one under Yellowstone.

Mount Cleveland [Image is in the Public Domain]

The findings, which will be formally presented at the meeting of the American Geophysical Union on Monday, are a little alarming.  According to the press release from Science Daily:

Researchers from a variety of institutions and disciplines have been studying Mount Cleveland, the most active volcano of the group, trying to understand the nature of the Islands of the Four Mountains.  They have gathered multiple pieces of evidence showing that the islands could belong to one interconnected caldera.

Unlike stratovolcanoes, which tend to tap small- to modestly-sized reservoirs of magma, a caldera is created by tapping a huge reservoir in the Earth's crust.  When the reservoir's pressure exceeds the strength of the crust, gigantic amounts of lava and ash are released in a catastrophic episode of eruption...

If the researchers' suspicions are correct, the newfound volcanic caldera would belong to the same category of volcanoes as the Yellowstone Caldera and other volcanoes that have had super-eruptions with severe global consequences.

So yeah.  That's just marvelous.  Okay, I know, the discovery doesn't mean it's going to erupt any time soon, although it bears mention that Mount Cleveland has erupted 22 times in the past 230 years, and eight of those eruptions were in the last eleven years.  So it would totally be on-brand for 2020 if the whole thing went kablooie.

Yes, I know, I'm not supposed to be superstitious or engage in magical thinking or anything.  Given how this year's gone, I think I deserve a little slack, here.  No one will be happier than me if January 1, 2021 comes and the Aleutian Islands still exist, but at present I'm not ruling anything out. 

There we have it -- a supervolcano that we didn't even realize existed.  Just another thing to put in your Box of Anxiety.  Honestly, at the moment I'm more concerned about what Donald "Cheeto Benito" Trump and his cronies could potentially do to the United States on the way out the door.  In my experience, assholes can do more damage than ash holes.

Even the super-sized ones.

********************************

One of the most compellingly weird objects in the universe is the black hole -- a stellar remnant so dense that it warps space into a closed surface.  Once the edge of that sphere -- the event horizon -- is passed, there's no getting out.  Even light can't escape, which is where they get their name.

Black holes have been a staple of science fiction for years, not only for their potential to destroy whatever comes near them, but because their effects on space-time result in a relativistic slowdown of time (depicted brilliantly in the movie Interstellar).  In this week's Skeptophilia book-of-the-week, The Black Hole Survival Guide, astrophysicist Janna Levin describes for us what it would be like to have a close encounter with one of these things -- using the latest knowledge from science to explain in layperson's terms the experience of an unfortunate astronaut who strayed too close.

It's a fascinating, and often mind-blowing, topic, handled deftly by Levin, where the science itself is so strange that it seems as if it must be fiction.  But no, these things are real, and common; there's a huge one at the center of our own galaxy, and an unknown number of them elsewhere in the Milky Way.  Levin's book will give you a good picture of one of the scariest naturally-occurring objects -- all from the safety of your own home.

[Note: if you purchase this book using the image/link below, part of the proceeds goes to support Skeptophilia!]

Becoming human

I think one of the uniting characteristics of the topics that interest me is that they all have something to do with altering our perception of the commonplace reality around us.

This capacity for (in writer Kathryn Schulz's words) "seeing the world as it isn't" led me to writing fiction, but also to the weird and counterintuitive bits of quantum physics, the expansive vision of astronomy, and the fields studying that which no longer exists -- history, archaeology, paleontology.  It's this last one that brings this whole topic up, with a pair of discoveries revealed this week that leave me kind of awestruck.

The first, which came my way from my buddy Andrew Butters over at the wonderful blog Potato Chip Math, is about the discovery in South Africa of a two-million-year-old skull of Paranthropus robustus, a hominin considered a "cousin species" that coexisted with our direct ancestor species Homo erectus.

The find is remarkable from a number of perspectives, not least that a complete skull of any hominin is pretty unusual.  "Most of the fossil record is just a single tooth here and there so to have something like this is very rare, very lucky," said Angeline Leece, who participated in the research.  She added an evocative description of what the world was like when the owner of this skull was still alive and loping around on the African savanna.  "These two vastly different species, Homo erectus with their relatively large brains and small teeth, and Paranthropus robustus with their relatively large teeth and small brains, represent divergent evolutionary experiments,"  Leece said.  "Through time, Paranthropus robustus likely evolved to generate and withstand higher forces produced during biting and chewing food that was hard or mechanically challenging to process with their jaws and teeth — such as tubers.  Future research will clarify whether environmental changes placed populations under dietary stress and how that impacted human evolution."

It's fascinating to imagine what the world was like to these creatures, during a time when there were several intelligent hominin species coexisting.  I remember my evolutionary biology professor making that point; a lot of our attitude that species are these hard-and-fast little cubbyholes comes from the fact that we have no near relatives still alive.  Much more common in the natural world are groups of closely-related species all competing and coexisting.

But it's still a little hard to picture wandering around the place and seeing other human-like, but not-quite-human, animals out there doing their thing.

It also bears keeping in mind that the other animal species they'd have been around weren't like the ones today, either.  This point was driven home by the second discovery revealed this week, of a twelve-thousand-year-old frieze of cliffside paintings in Cerro Azul, Colombia, that show not only the usual assemblage of South American animals -- snakes, alligators, turtles, bats, monkeys, porcupines -- but mastodons, giant sloths, camelids, and some sort of three-toed ungulate with a trunk.

"These really are incredible images, produced by the earliest people to live in western Amazonia," said Mark Robinson, an archaeologist at the University of Exeter, who participated in the study.  "The paintings give a vivid and exciting glimpse in to the lives of these communities.  It is unbelievable to us today to think they lived among, and hunted, giant herbivores, some which were the size of a small car."

A small part of the Cerro Azul frieze

The size, scope, and detail of the drawings is phenomenal.  The paintings were made with ochre, a yellowish or reddish mineral, and cover the cliff face not only for miles horizontally, but for almost twenty meters vertically.  Whatever the purpose of this art -- whether it was purely decorative or had some kind of magical or symbolic significance -- the artists certainly were highly motivated.  Some parts of the frieze would have required ladders or climbing equipment to create, pretty impressive for what was at the time a more or less pre-technological society.

"These rock paintings are spectacular evidence of how humans reconstructed the land, and how they hunted, farmed and fished," said archaeologist José Iriarte, also of the University of Exeter.  "It is likely art was a powerful part of culture and a way for people to connect socially.  The pictures show how people would have lived amongst giant, now extinct, animals, which they hunted."

I find it fascinating that even back then -- at the tail end of the last Ice Age, when merely surviving must have been a challenge -- people were creating art.  And the fact that much of that art was depicting animals no longer extant adds a whole other layer of mind-boggling to the find.  This, and the South African skull discovery, give us a window into understanding how we became human -- how we went from savanna-dwelling apes to intelligent beings who have art, music, literature, science, and technology.

It's a journey that took us from the East African Rift Valley to pretty much every point on the surface of the Earth -- and has driven us along the way to look with wonder into the unknown vastness of the universe.  As Carl Sagan so poignantly put it, "We are a way for the cosmos to know itself."

********************************

One of the most compellingly weird objects in the universe is the black hole -- a stellar remnant so dense that it warps space into a closed surface.  Once the edge of that sphere -- the event horizon -- is passed, there's no getting out.  Even light can't escape, which is where they get their name.

Black holes have been a staple of science fiction for years, not only for their potential to destroy whatever comes near them, but because their effects on space-time result in a relativistic slowdown of time (depicted brilliantly in the movie Interstellar).  In this week's Skeptophilia book-of-the-week, The Black Hole Survival Guide, astrophysicist Janna Levin describes for us what it would be like to have a close encounter with one of these things -- using the latest knowledge from science to explain in layperson's terms the experience of an unfortunate astronaut who strayed too close.

It's a fascinating, and often mind-blowing, topic, handled deftly by Levin, where the science itself is so strange that it seems as if it must be fiction.  But no, these things are real, and common; there's a huge one at the center of our own galaxy, and an unknown number of them elsewhere in the Milky Way.  Levin's book will give you a good picture of one of the scariest naturally-occurring objects -- all from the safety of your own home.

[Note: if you purchase this book using the image/link below, part of the proceeds goes to support Skeptophilia!]

Requiem for an old friend

My fascination for astronomy started a long time ago.  I started learning the constellations when I was about six, and received a telescope as a Christmas present from my grandmother when I was eight.  Just about any clear night it was a good bet I'd be out in my front yard looking up at the stars, wondering what it was like out there, thinking about what other planets might host life -- and if somewhere there was a little alien boy looking back my way and wondering the same thing.

It was about that time that I found out about the Arecibo Observatory in Puerto Rico.  One of the many astronomy books I had called the three-hundred-meter radio dish "our eye on the sky" -- it was my first introduction both to the idea that not all telescopes looked like the little tube with lenses on a stand that I owned, and that it was possible to "see" the sky using wavelengths of light that were invisible to human eyes.  Also, if you were to view the sky with a radio telescope (or in microwaves, or x-rays, or ultraviolet light, or whatever) you would see a very different set of features than the familiar twinkling points of light set against a black background.

In the microwave region, for example, you'd see light coming from basically all directions at once -- the "three degree microwave background radiation" which Arno Penzias and Robert Wilson discovered -- and which is one of our most persuasive pieces of evidence of the Big Bang.  (This discovery was made not at Arecibo but at the Holmdel Horn Antenna in New Jersey.)  X-ray astronomy is how black holes were discovered, and we know about the terrifyingly powerful Wolf-Rayet stars because of telescopes sensitive to the ultraviolet region of the spectrum.

Arecibo, though, was particularly evocative, not only for its function but because of its site, in a limestone sinkhole in the jungles of northern Puerto Rico.  Add to this its role in searching for signs of extraterrestrial life, and you have a combination sure to capture the imagination.  Because of this it made a number of appearances in science fiction, such as the 1994 episode of The X Files called "Little Green Men," and most notably, the amazing 1997 movie Contact, which remains my number-one favorite movie ever, not only for the story but because of a tour de force performance by Jodie Foster as the indomitable astronomer Ellie Arroway.

[Image is licensed under the Creative Commons Mariordo (Mario Roberto Durán Ortiz), Arecibo radio telescope SJU 06 2019 6144, CC BY-SA 4.0]

So it was with considerable sadness that I found out a couple of weeks ago that Arecibo was being permanently dismantled.  Earlier this year, a pair of cable breaks ripped gashes in the dish, and it seemed like the venerable telescope was unrepairable.  As if to confirm that, just two days ago the nine-hundred-ton equipment platform collapsed, falling almost two hundred meters and destroying the entire center of the telescope.

"When we looked outside the control room, we started to see the eventual downfall of the observatory," observatory director Ángel Vázquez said.  "After the breakage of two cables earlier this year, strands of the remaining three cables had been unraveling in recent days, increasing the strain.  And because two of the support towers maintained tension as the collapse occurred, some of the falling equipment was yanked across the side of the dish rather than falling straight down through its focal point...  This whole process took thirty seconds, and an icon in radio astronomy was done."

Vázquez isn't the only one to feel its loss deeply.  "While life will continue, something powerful and profoundly wonderful is gone," said astronomer Seth Shostak, whose work with SETI (the Search for Extraterrestrial Intelligence) was a good part of the inspiration for Contact.

I understand the sentiment.  The whole thing makes me feel something like grief.  Arecibo has been an inspiration to me since I was a child, and its destruction is like losing an old friend.  I know there are other, and more powerful, telescopes out there, but this one seemed to me to be a symbol of our search for something beyond ourselves, for unraveling the secrets of the universe while still right here, looking up into the skies from our home planet.

So farewell to Arecibo.  There will always be something unique and marvelous about the image of that huge telescopic eye in the Puerto Rican jungle.  As Seth Shostak pointed out, its loss won't stop our yearning for knowledge, but it's hard to imagine finding something as grand and iconic to take its place in our imaginations.

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One of the most compellingly weird objects in the universe is the black hole -- a stellar remnant so dense that it warps space into a closed surface.  Once the edge of that sphere -- the event horizon -- is passed, there's no getting out.  Even light can't escape, which is where they get their name.

Black holes have been a staple of science fiction for years, not only for their potential to destroy whatever comes near them, but because their effects on space-time result in a relativistic slowdown of time (depicted brilliantly in the movie Interstellar).  In this week's Skeptophilia book-of-the-week, The Black Hole Survival Guide, astrophysicist Janna Levin describes for us what it would be like to have a close encounter with one of these things -- using the latest knowledge from science to explain in layperson's terms the experience of an unfortunate astronaut who strayed too close.

It's a fascinating, and often mind-blowing, topic, handled deftly by Levin, where the science itself is so strange that it seems as if it must be fiction.  But no, these things are real, and common; there's a huge one at the center of our own galaxy, and an unknown number of them elsewhere in the Milky Way.  Levin's book will give you a good picture of one of the scariest naturally-occurring objects -- all from the safety of your own home.

[Note: if you purchase this book using the image/link below, part of the proceeds goes to support Skeptophilia!]

Music, math, and the mind

I've been interested for a long time in the connection between musical and mathematical aptitude.  Part of this is my background as an educator; part is that I personally have been fascinated both with music and mathematics for as long as I can remember.  I play three instruments -- flute, piano, and (I shit you not) bagpipes -- and am largely self-taught on all three, from a combination of parents who thought that music lessons and/or participation in band were a waste of time and a nearly irresistible compulsion to make music despite that.

People like myself who enjoy both disciplines, and who would love to see music and arts education in schools emphasized and expanded, often bring up famous figures who were both musicians and adepts in the fields that are encompassed by the acronym STEM (science, technology, engineering, and mathematics).  Albert Einstein usually comes up, and his quote "I have always considered myself first and foremost a violinist" often gets mentioned.

My favorite example of a musician/scientist, however, is Brian May, lead guitarist for the band Queen, who holds a Ph.D. in astrophysics from London College.  His scientific background sometimes makes an appearance in songs he wrote for the band -- most notably the beautiful and heartbreaking "'39," which is about an astronaut leaving in search of new planets to colonize in the "year of '39," and returning with news of his discoveries, also in the year of '39 -- but because of the relativistic time dilation effect of near-light-speed travel, when he arrives home it's not a few months later, it's a hundred years later.  The chorus is devastatingly bittersweet:

Don't you hear my call, though you're many years away,
Don't you hear me calling you?
Write your letters in the sand, for the day I'll take your hand
In the land that our grandchildren knew.

You can listen to the entire thing here:

So anyhow, I've been biased for a long time to believe there's a connection between musical aptitude and mathematical and/or scientific aptitude.  But as I've point out more than once, the plural of anecdote isn't data, and it'd take more than throwing around a famous name or two to convince the powers-that-be in education of the importance of music in schools.

Which is why the paper last week in the Journal of Research in Music Education is so important.  In "Multilevel Models of the Relationship Between Music Achievement and Reading and Math Achievement," by Martin Bergee and Kevin Weingarten of the University of Kansas, we read about a study that should be a model for careful analysis and control of variables, and which demonstrates beyond doubt that the link exists -- and is almost certainly causational.

What's striking about this is that Bergee set about doing the study because he was convinced that the opposite was true -- that there was no correlation between music and math aptitude beyond what could be explained by other factors (i.e. socioeconomic status, the degree of education of the parents, the emphasis on arts and music education by the school district, and so on).  But even accounting for these factors, the correlation was unmistakable.

"Based on the findings, the point we tried to make is that there might be, and probably are, general learning processes that underlie all academic achievement, no matter what the area is," Bergee said, in an interview with Science Direct.  "Music achievement, math achievement, reading achievement -- there are probably more generalized processes of the mind that are brought to bear on any of those areas.  Therefore, if your goal is to educate the person -- to develop the person's mind -- then you need to educate the whole person.  In other words, learning may not be as modular as it is often thought to be."

The study has unequivocal implications on how school districts allocate funds -- and why the "preserve STEM at all costs, cut art/music if necessary" approach is so completely wrong-headed.  "If you want a young person's -- or any person's -- mind to develop, then you need to develop it in all ways it can be developed," Bergee said.  "You can't sacrifice some modes of learning to other modes of learning for whatever reason, be it financial or societal."

As conclusive as it was, it would be unwarrantedly optimistic to think that this research will impel school boards to rethink their budget decisions apropos of music education.  The educational establishment is notoriously prone to ignoring current research in favor of "we've always done it this way and it would be too expensive to change course."  (My favorite example is the ridiculous approach in the United States to teaching children a second language.  Such instruction usually begins in seventh or eighth grade, even though it's been known for years that the window of neural plasticity for language learning closes significantly after age six or seven.  In the words of a former student of mine, "They wait to start teaching you languages until your brain has become really bad at learning them.")

But at least we now have some rigorous data to support the claim that music education is as important as the sacrosanct STEM.  Music lessons are not (as my mom claimed) "a waste of time and money."  Teaching music and the arts in schools is critical for developing children's intellects as deeply and thoroughly as possible -- which, after all, should be the ultimate goal of education.

********************************

One of the most compellingly weird objects in the universe is the black hole -- a stellar remnant so dense that it warps space into a closed surface.  Once the edge of that sphere -- the event horizon -- is passed, there's no getting out.  Even light can't escape, which is where they get their name.

Black holes have been a staple of science fiction for years, not only for their potential to destroy whatever comes near them, but because their effects on space-time result in a relativistic slowdown of time (depicted brilliantly in the movie Interstellar).  In this week's Skeptophilia book-of-the-week, The Black Hole Survival Guide, astrophysicist Janna Levin describes for us what it would be like to have a close encounter with one of these things -- using the latest knowledge from science to explain in layperson's terms the experience of an unfortunate astronaut who strayed too close.

It's a fascinating, and often mind-blowing, topic, handled deftly by Levin, where the science itself is so strange that it seems as if it must be fiction.  But no, these things are real, and common; there's a huge one at the center of our own galaxy, and an unknown number of them elsewhere in the Milky Way.  Levin's book will give you a good picture of one of the scariest naturally-occurring objects -- all from the safety of your own home.

[Note: if you purchase this book using the image/link below, part of the proceeds goes to support Skeptophilia!]