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Thursday, September 5, 2024
Quantum foams and tiny wormholes
Wednesday, September 4, 2024
Acid test
The idea here is that lots of diseases -- cancer, heart disease, osteoporosis, and Alzheimer's are the four most commonly mentioned -- are caused by your body having an "acid pH." All you have to do, they say, is alter your diet to foods that result in "alkaline ash" (residues with a pH above 7) and you'll be healthy and happy and disease free. (Here's one example.)
As is the case with most of these sorts of claims, it has a kernel of truth. There are foods that result in alkaline ash; others that have acidic ash; and some that have neutral (pH = about 7) ash. The easiest way to monitor this is to test your urine pH, as your kidneys regulate your blood pH by excreting or retaining hydrogen ions, which is what pH is measuring in any case.
Further, a lot of the alkaline ash foods -- fruits and nuts especially -- are certainly part of a healthy diet, and some of the acidic ash foods -- meat, poultry, fish, dairy, grains and alcohol -- are problematic if they make up too great a percentage of your diet.
But that's where the realistic bit ends, and the pseudoscience takes over.
The fact is, you can't change your body's pH, for the very good reason that it's one of the most tightly-regulated homeostatic factors in your body. If you're in good health, your blood pH is always 7.4. If it varies more than 0.1 pH points either direction, you are in a world of hurt. Here's a quick summary of what happens if your blood becomes more acidic:
pH = 7.4 -- happy and healthyAnd the same for moving in the alkaline direction:
pH = 7.3 -- blood acidosis; symptoms are shortness of breath, headache, confusion
pH = 7.2 -- dead
pH = 7.4 -- happy and healthySo the idea that by eliminating meat from your diet, you'll become more alkaline, and that's somehow a good thing, is idiotic. Each tissue in your body has a particular pH at which it functions best -- some are acidic (e.g. the stomach), some are alkaline (e.g. the blood and the small intestine), and (more importantly) changing that pH in any of them would be a seriously bad idea.
pH = 7.5 -- blood alkalosis; symptoms are nausea, muscle spasms, twitching, numbness
pH = 7.6 -- dead
The bottom line is that if our pH yo-yoed around every time we ate a cheeseburger or an apple, we'd be dead. End of story.
Now, it's true that your urine pH varies a lot; that's because your kidneys are regulating your blood pH by excreting whatever it takes to keep your blood in homeostasis. So of course your urine pH changes. It's compensating for what you eat and drink. But there's nothing healthier about having alkaline urine. All it means is that your kidneys are working, which is the same thing that having acidic urine means.
The funny thing is, the "alkaline diet" site I linked above gives a nod to that idea in the following paragraph:
Even very tiny alterations in the pH level of various organisms can cause major problems. For example, due to environmental concerns, such as increasing CO2 deposition, the pH of the ocean has dropped from 8.2 to 8.1 and various life forms living in the ocean have greatly suffered. The pH level is also crucial for growing plants, and therefore it greatly affects the mineral content of the foods we eat. Minerals in the ocean, soil and human body are used as buffers to maintain optimal pH levels, so when acidity rises, minerals fall.Right. So that's why we have kidneys. So that kind of shift in pH and other electrolytes doesn't kill us.
You'd think that a quick perusal of sites regarding actual research on the effects of diet (here's a good example) would immediately settle that point, but unfortunately the availability of correct information hasn't stopped the claims. And worse, there are people now selling all sorts of supplements that are supposed to regulate our pH, and without which dire things are predicted to happen.
Me, I'm fond of the dietary advice "everything in moderation." Listen to your body, eat a good balance of nutrients, get plenty of exercise, stay hydrated, don't spend your money on useless supplements, and don't go crazy overboard on something like the amazing grapefruit-and-peanut-butter diet. (I don't know if that actually exists, but given some of the bizarre diets out there, I'll bet it does.)
Best of all, learn a little bit of biology. It's cool, it's interesting, and it'll keep you from getting suckered by alt-med nonsense. And with that, I think I'm going to go have some bacon and eggs for breakfast, confident in the knowledge that my kidneys are up to the challenge.
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Tuesday, September 3, 2024
The problem with research
If there's one phrase that torques the absolute hell out of me -- and just about every actual scientist out there -- it's, "Well, I did my research."
Oh, you did, did you? What lab did you do your research in? Or was it field work? Let's see your data! Which peer-reviewed journal published your research? How many times has it been cited in other scientific journals?
Part of the problem, of course, is like a lot of words in the English language -- "theory" and "proof" are two examples that come to mind -- the word "research" is used one way by actual researchers and a different way by most other people. We were taught the alternate definition of "research" in grade school, with being assigned "research papers," which meant "go out and look up stuff other people have found out on the topic, and summarize that in your own words." There's a value to doing this; it's a good starting place to understanding a subject, and is honestly where we all began with scholarship.
The problem is -- and it exists even at the grade-school level of inquiry -- this kind of "research" is only as good as the sources you choose. When I was a teacher, one of the hardest things to get students to understand was that all sources are not created equal. A paper in Science, or even the layperson's version of it in Scientific American or Discover, is head-and-shoulders above the meanderings of Some Random Guy in his blog. (And yes, I'm well aware that this pronouncement is being made by Some Random Guy in his blog.)
That doesn't mean those less-reputable sources are necessarily wrong, of course. It's more that they can't be relied upon. While papers in Science (and other comparable journals) are occasionally retracted for errors or inaccuracies, there is a vetting process that makes their likelihood of being correct vastly higher. After all, any oddball with a computer can create a website, and post whatever they want on it, be it brilliant posts about cutting-edge science or the looniest of wingnuttery.
The confusion between the two definitions of the word research has the effect of increasing people's confidence in the kind we were all doing in middle school, and giving that low-level snooping about an undeserved gloss of reputability. This was the upshot of a paper in Nature (peer-reviewed science, that), by Kevin Aslett of the University of Central Florida et al., entitled, "Online Searches to Evaluate Misinformation Can Increase Its Perceived Veracity." Their results are kind of terrifying, if not unexpected given the "post-truth society" we've somehow slid into. The authors write:
Although conventional wisdom suggests that searching online when evaluating misinformation would reduce belief in it... across five experiments, we present consistent evidence that online search to evaluate the truthfulness of false news articles actually increases the probability of believing them... We find that the search effect is concentrated among individuals for whom search engines return lower-quality information. Our results indicate that those who search online to evaluate misinformation risk falling into data voids, or informational spaces in which there is corroborating evidence from low-quality sources.
The tendency appears to be that when someone is "doing their research" on a controversial subject, what they do is an online search, pursued until they find two or three hits on sources that corroborate what they already believed, and that strengthens their conviction that they were right in the first place. The study found that very little attention was usually given to the quality of those sources, or where those sources got the information themselves. If it makes the "researcher" nod sagely and say, "Yeah, that's what I thought," it doesn't matter if the information came from NASA -- or from QAnon.
The problem is, a lot of those bogus sources can look convincing.
People see data in some online source, and rarely consider (1) who collected the data and why, (2) how it was analyzed, (3) what information wasn't included in the analysis, and (4) whether it was verified, and if so how and by whom. I first ran into the old joke about "73.4% of all statistics are made up on the spot" years ago, and it's still funny, even if our laughs are rather wry these days. Sites like Natural News, Food Babe, Before It's News, Breitbart.com, Mercola.com, InfoWars, One America News, and even a few with scholarly-sounding names -- like The Society for Scientific Exploration, Evolution News, and The American College of Pediatricians are three examples -- are clearinghouses for fringe-y and discredited ideas, often backed up by data that's either cherry-picked and misrepresented, or from sources even further down the ladder of sketchy credibility.
Given how much bullshit is out there, a lot of it well-hidden behind facts, figures, and fancy writing, it can be a challenge for laypeople (and I very much count myself amongst their numbers) to discern truth from fiction. It's also an uphill struggle to fight against the very natural human tendency of confirmation bias; we all would love it if our cherished notions of how the world works were one hundred percent correct. But if we want to make smart decisions, we all need to stop saying "I did my research" when all that "research" involved was a twenty-minute Google search to find the website of some random crank who confirmed what we already believed.
Remember, as the brilliant journalist Kathryn Schulz points out, that one of the most mind-expanding and liberating things we can say is, "I don't know. Maybe I'm wrong." And to start from that open-minded perspective and find out what the facts really are -- from the actual researchers.
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Monday, September 2, 2024
The fight continues
September is Bisexual Awareness Month, which ironically I only became aware of on September 1.
I guess I must have known that at some point, but given that my entire approach to life has been one long tug-of-war between "please notice me" and "OH NO SOMEONE JUST NOTICED ME," I'm not sure how comfortable I am adding to my own visibility.
Be that as it may, and notwithstanding how many days and months are set aside to commemorate ridiculous stuff (January 21 is National Squirrel Appreciation Day? Really?), overall I think Bisexual Awareness Month is a good thing. When I was a teenager and first figured out that I was equally attracted to men and women, I had no idea there was even a name for that, much less that it was normal and okay. The fact that we're now able to talk about this stuff will -- I fervently hope -- save the current generation of shy, scared, confused fifteen-year-olds from going through the hell I endured.- Arizona -- House Bill 2657, which forces school employees to out queer children to their parents -- even if that would put the child in danger. Parents, the bill says, have "inalienable rights" to know everything about their children, including information given to school employees in confidence.
- South Carolina -- Senate Bill 3728 -- places all authority over the teaching of "morals, ethics, and civic responsibility" into the hands of parents, allowing them carte blanche for prohibiting undefined "certain concepts" from being mentioned in the classroom. It doesn't take much imagination to guess what "concepts" they're talking about.
- Delaware -- Senate Bill 191 -- defines sex and gender as binary (contrary to known biological science) and restricts athletes from competing on teams split by gender according to "sex as determined at or near birth."
- Oklahoma -- House Bill 3120 -- prohibits any mention in public schools of "sexual activity that deviates from a traditional family structure" and "non-heterosexual orientation."
- Florida -- Senate Bill 1382 -- allows employers to use whatever names and pronouns they see fit, irrespective of the employee's request.
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Saturday, August 31, 2024
An anodyne against despair
It's essential to take a moment, every so often, to step back and recognize that however terrible current events have been, there is still great love, compassion, and wonder in the world. So I thought I'd take a day off from the continual stream of WTF that the news has become, and consider a few examples of what beauty we humans are capable of. Think of it as an anodyne against despair, a way to inoculate yourself against losing hope.
First, take a look at this video by the Dutch artist Thijme Termaat. He spent two and a half years creating a progressive set of paintings, condensed it into a three-minute video, set it to a piece from Vivaldi's The Four Seasons, and named it Timelapse. Take three minutes and be amazed.
If you don't mind crying, take a look at Kseniya Simonova's stupendous feat of drawing in sand on a light box that brought the whole audience to tears in Ukraine's Got Talent. It shows the effect of the German invasion on the people of Ukraine during World War II, and packs an emotional punch like nothing I've ever seen before -- especially considering what's happening in Ukraine right now. It's a perfect example of an artist's ability to distill pain into beauty.
If after that, you want to see something that is pure whimsy to cheer you up, you need to watch the amazing musical marble machine created by Martin Molin of the Swedish band Wintergatan. Molin created a wild Rube Goldberg machine, powered by a hand crank and 2,000 marbles, that plays a tune he wrote. It's one of those things that you watch, and you just can't quite believe it's real.
If you want to blow your mind further, have a look at this short little video showing one of the crazy three-dimensional sculptures of Japanese mathematician and artist Kokichi Sugihara. Sugihara specializes in creating optical illusions out of paper -- in this case, a structure that seems to induce marbles to roll uphill. The weird thing to me is that even when he shows you how it's done -- which he does, about halfway through -- you still can't see it any other way. It's so cleverly done that our brains simply can't handle it.
Last, for sheer exuberance -- if you're like me, it'll make you laugh and cry at the same time -- check out the short film "Where in the Hell Is Matt?", made by Matt Harding. Harding set out to film himself dancing in as many different spots on Earth as he could get to, often joined by children, adults, and dogs, all simply expressing how wonderful it is to be alive. It's set to the heart-wrenchingly gorgeous song "Praan" by Garry Schyman. The music and the spirit of Harding's project could not blend together more perfectly.
So there you are. Even when things are bad, people are still creating beautiful, funny, and whimsical things. They still care about bringing joy into the world, despite the constant barrage of pain, discouragement, and bad news we're subjected to on a daily basis. I don't know about you, but when I see things like this, it reminds me that humanity isn't as hopeless as it may seem at times. It recalls the last lines of the beautiful poem "Desiderata," by Max Ehrmann, which never fails to bring me to tears, and which seems like a good place to conclude:
Nurture strength of spirit to shield you in sudden misfortune. But do not distress yourself with dark imaginings. Many fears are born of fatigue and loneliness.
Beyond a wholesome discipline, be gentle with yourself. You are a child of the universe, no less than the trees and the stars; you have a right to be here.
And whether or not it is clear to you, no doubt the universe is unfolding as it should. Therefore be at peace with God, whatever you conceive Him to be. And whatever your labors and aspirations, in the noisy confusion of life, keep peace in your soul. With all its sham, drudgery and broken dreams, it is still a beautiful world. Be cheerful. Strive to be happy.
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Friday, August 30, 2024
Word association
There's an odd claim circulating social media these days. This is the form of it I've seen most frequently:
As easy as it is to laugh at Emerald for her obvious ignorance of (1) how vaccines work, (2) how bioluminescent markers are used, and (3) basic linguistics, what interests me more is how odd a claim this really is. Because the idea here is that the name of the enzyme somehow creates a link between it and Satan, and this marks you -- in the sense used in the Book of Revelation.
You know, the "Mark of the Beast."
I ran into another example of this kind of thinking a few weeks ago, with someone who recounts being in line at a convenience store, and the woman ahead of him had her total rung up, and it came out $6.66. She got a scared look on her face, and said, "Oh, no, I don't like that total. Better throw in a corndog."
The man who posted about it marveled at what a badass she is -- going into battle with the Forces of Darkness, armed with a corndog.
How do people come to believe so fervently in associations like this? Clearly they were both taught in a religious context, since both of them made reference to the End Times, but how do you get to the point where any association with words or numbers connected with the Bad Place -- even an obviously accidental or circumstantial one -- causes an immediate and powerful fear response?
A study by Fatik Mandal (of Bankura College, India) found an interesting pattern:
Superstitious beliefs help to decrease [people's] environmentally-induced stress. Superstition produces a false sense of having control over outer conditions, reduces anxieties, and is prevalent in conditions of absence of confidence, insecurity, fear and threat, stress, and anxiety. When the events are interpretable, environment is transparent, and conditions are less ambiguous, individuals become less superstitious.
This was supported by a study in 2022 by Hoffmann et al., which suggested that holding superstitions -- especially ones that have the backing of authority figures (e.g. church leaders) -- gives you a sense of control over circumstances that are actually uncertain, random, or inherently uncontrollable.
But what still strikes me as odd is that the reason these people were fearful in the first place was because the church leaders had convinced them that the Antichrist and the Four Apocalyptic Horsepersons and other assorted special offers were on their way, so they'd better get ready to fight. The superstitions about avoiding vaccines and convenience store bills totaling $6.66 were incidental, and only occurred because the people holding them had already been convinced that the Book of Revelation was actually true.
So this can be summed up as, "Here's how not to be afraid about this thing that I just now made you afraid of." Which strikes me as just plain weird.
What's certain, though, is how far back in our history this sort of thinking goes. A study in 2023 by Amar Annus of the University of Chicago looked at the origins of superstitions in the Middle East, and found that the associations between certain words and (usually bad) outcomes has a deep history, and no more rational that the ones people hold today. In the literature of ancient Mesopotamia, we see ample evidence of detailed superstitions, but:
Only exceptionally are we able to detect any logical relationship between portent and prediction... In many cases, subconscious association seems to have been at work, provoked by certain words whose specific connotations imparted to them a favorable or an unfavorable character, which in turn determined the general nature of the prediction.
Because those connotations aren't logical, they have to be learned -- transmitted orally or in written form from one generation to another, and undoubtedly embellished as time goes on. At that point, in just about every culture, you end up with adepts who claim that they know better than anyone else how to interpret the omens, and avoid the unpleasant outcome that would pertain if you get it wrong. Annus writes about a Mandaean priest in Iraq who spoke with the anthropologist Ethel Drower in the 1920s, and who boasted,
If a raven croaks in a certain burj (= astrological house), I understand what it says, also the meaning when the fire crackles or the door creaks. When the sky is cloudy and there are shapes in the sky resembling a mare or a sheep, I can read their significance and message. When the moon is darkened by an eclipse, I understand the portent; when a dust-cloud arises, black, red, or white, I read these signs, and all this according to the hours and the aspects.
So it seems like part of it has to do with powerful or charismatic people saying, "Look, I understand everything way better than you do, and you'd damn well better listen to what I'm saying."
If you can hook in strong emotions like fear, so much the better. At that point it turns into a Pascal's Wager sort of thing; what if the scary stuff this guy is saying actually turns out to be true? What if getting the vaccine does mark me as one of Satan's own?
Better not take the chance.
Of course, the solution to all this is knowledge and rationality, but I'm not sure how well that'd work with someone who already has accepted the fundamentally irrational premises of superstition. As has been so often commented before, you can't logic your way out of a belief you didn't logic your way into.
So I'm not sure how helpful all this is in the bigger picture. Superstition has always been with us, and probably always will be. The best you can do is arm yourself against it in whatever way you can.
Here. Have a corndog.
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Thursday, August 29, 2024
Time is running out
That issue is whether time is speeding up. I'm sure we can all relate to wondering about this. It's becoming harder and harder to get everything done that needs doing, and there just seem not to be enough hours in the day. Well, according to a story that a long-time loyal reader of Skeptophilia sent me... there aren't.
The article is entitled "Is Time Speeding Up?", and follows Betteridge's Law (any article headline phrased as a question can be answered "No."). Be that as it may, let's not be hasty (to borrow a line from the inimitable Treebeard), and look at what they're claiming:
Einstein’s calculations showed that the closer an object comes to the speed of light, the slower time passes. Scientists have done experiments that prove Einstein’s theory to be correct using clocks moving at different speeds.
The opposite then must be true that as our speed decreases, time speeds up. Researcher Greg Braden confirms this, he says that the rotation of the Earth is slowing down, and time is speeding up. Evidence for his assertions comes from the Schumann Resonance. The Schumann Resonance is like the Earth’s heartbeat. It is the Extremely Low Frequency (ELF) of the Earth’s magnetic field. In the 1950s, when the Schumann resonance was discovered, it was recorded to be an average of 7.8 Hertz. It has been stable for thousands of years; but now, according to Swedish and Russian researchers, says Braden, it is an average of 12 Hertz. This means that the normal 24-hour day feels like a 16-hour day.
That doesn't stop "researcher Greg Braden," who says that if you think that's amazing, you ain't seen nothin' yet:
Eventually, Greg Braden says, the Earth’s rotation around the Sun will stop and start rotating in the opposite direction... Braden says that when the Schumann resonance hits 13 Hertz, time will speed up to infinity. The outcome of this has been explained as those living at this time will experience a shift in consciousness. There will be no ‘separation’ between this mortal existence and the spirit realm. Some call it ascension.
Anyhow, I decided to do a little research, and it turns out that this is only scratching the surface of the "accelerating time" theory. I found one post from a guy whose proof that time is speeding up was that the clock in his bedroom is running fast. Another said that he knew time was speeding up because he used to be able to say "One Mississippi, two Mississippi," and keep up with the seconds ticking on his clock, and now he can't. But by far my favorite commentary I found on the topic came from a guy who evidently thinks that time is like a giant cosmic game of tetherball. He gives this convoluted explanation of a ball hanging on a string tied to a rotating pole, and as the string winds around the pole, the ball spins faster (i.e. time speeds up), and the string gets shorter and shorter and the ball spins faster and faster and then finally SPLAT the ball hits the pole.
At that point, he says, "the Galactic Alignment... with the heart of the galaxy will open a channel for cosmic energy to flow through the earth, cleansing it and all that dwells upon it, raising it to a higher level of vibration."
So at least that's something for us all to look forward to.
Well. I guess he told them. Of course, it won't make any difference, because people who think this way are never going to believe some dumb Ph.D. in physics when they've got the whole internet to rely on. (I'll bet "they did their research.") Besides, this physicist is probably a reptilian alien Man-in-Black from the Planet Nibiru who is part of the Bilderberg Group and works for the Illuminati, and is trying to spread disinformation.
So anyway, that's today's heaping helping of pseudoscientific absurdity. I think I'll wrap this up, because (1) if I read any more websites like the ones I had to peruse to write this, my brain will turn into cream-of-wheat, and (2) I'm running short on time.
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