Technology

CAIN IS THE HERO, NOT ABEL:

Natural doesn’t always mean better: How to spot if someone is trying to convince you with an ‘appeal to nature’ (Amanda Ruggeri, 2/12/25, BBC)

Often called an “appeal to nature”, or the “naturalistic fallacy”, it is one of the most commonly-seen types of logical fallacies, or flaws in reasoning that can make a claim sound surprisingly convincing. Anytime you hear someone make a claim that a product or practice is superior because it is “natural”, or that one is inferior (or even harmful) because it is not “natural”, this is the naturalistic fallacy at work. So are arguments that something is “as nature intended”, or that something is bad specifically because it is a “chemical” or “synthetic”.

Nature is, in many ways, wonderful. And it has a great deal to teach us. So why isn’t it true that something is better merely because it comes from nature?

For one thing, because nature, of course, does not have intentions – not in any conscious sense. As such, nor does it have intentions to be good, or to help humans, specifically.

We don’t need to get too philosophical to grasp this. Just consider a handful of nature’s creations. Arsenic, which can kill an adult with a dose as little as 70mg, is natural. So is asbestos, which causes cancer. Cyanide, which can kill with as little as 1.5mg per kilogram of body weight if ingested, is a phytotoxin produced, naturally, by more than 2,000 different plant species, including almonds, apricots and peaches. This is also why some “natural” remedies frequently marketed – such as ground apricot seeds – can in fact be dangerous to consume.

And this is the trouble with the use of the word natural that is so commonly used to market products. It is a poorly defined term that doesn’t necessarily mean the product labelled as such will be better for you, or indeed safer, than any other alternatives.

IT’LL NEVER FLY, ORVILLE:

This innovative flying taxi could completely transform city travel — here’s the surprising energy source that makes it possible (Simon Sage, February 1, 2025, The Cool Down)

Battery power is used during vertical take-off, after which the HAM III-2 switches to hydrogen power. Seating is available for two people, flight time is estimated at 40 minutes, range is set to 100 kilometers (about 62 miles), and cruising speed is about 112 miles per hour.

WE ALL WANT TO BE SPECIAL:

Excessive Worry About Health Could be Signs of Illness Anxiety Disorder (Sean Mowbray, Jan 20, 2025, Discover)

Those with illness anxiety disorder will often have trouble finding reassurance in a reasonable way, which can drive “repetitive behaviors or escalating strategies to try to relieve that,” says David Smithson, outreach manager with Anxiety UK.

This can lead to frequent visits to the doctor and recurrent medical testing to gain that reassurance. It can also lead to behaviors that can be harmful to health, such as social isolation, substance misuse, and can lead to other mental health issues such as depression.

“People become preoccupied with that, in some cases, and worry about the slightest suggestion or hint of one of those symptoms being present in their body,” says Smithson. “If you suspect you’ve got a serious life-threatening illness, it can become very debilitating and can be extremely concerning to you as an individual.”

See under Long Covid

I’M OLD ENOUGH TO REMEMBER…:

Researchers design mind-blowing construction material to replace steel: ‘This technology holds a lot of promise’ (Simon Sage, January 20, 2025, The Cool Down)

Researchers at the University of Maine have managed to 3D print an organic building material with the strength of steel. […]

The nice thing about this set-up is that these panels can be printed in bulk off-site and get shipped to the construction area. Since there are already channels in the floor for electrical and plumbing, the only other thing that needs to be applied by hand is soundproofing and floor covering.

…when the Right insisted 3-D printyers would never be more than glorified Play-doh Factories….

THERE’S NO SUCH THING AS QUALITY:

Writers voice anxiety about using AI. Readers don’t seem to care (Tiernan Ray, Jan. 15, 2025, ZD Net)

“Throughout the study, writers expressed concerns about audiences’ reactions to their use of AI assistance for their writing,” the authors note.

However, the survey results indicate readers didn’t find that much difference in the writing samples. “By contrast, readers in our study held a more positive view toward the use of AI writing assistance,” the study notes.

DO YOU NEED SHOWER CURTAIN RINGS IN SPACE?:

3D Printing in Space Could Lead to Safer Space Missions (Monica Cull, Jan 13, 2025, Discover)

With a working microgravity 3D printer, the research team hopes that it can be used on space missions to create equipment that would otherwise have had to be loaded onto the spacecraft, taking up valuable room and adding extra weight. The added equipment may lead to an unsafe flight or become damaged during takeoff.

“Currently, everything that goes into Earth’s orbit is built on the surface and sent into space on rockets,” said Baliet in a press release. “They have tightly limited mass and volumes and can shake themselves to pieces during launch when mechanical constraints are breached, destroying expensive cargo in the process.”

“If, instead, we could place fabricators in space to build structures on demand, we would be freed from those payload restrictions. In turn, that could pave the way to creating much more ambitious, less resource-intensive projects, with systems actually optimized for their mission and not for the constraints of rocket launches,” said Baliet.

IT’S ALL IN YOUR HEAD:

REVIEW: of I Heard There Was a Secret Chord: Music as Medicine by Daniel J. Levitin (Reviewed by Karl Straub, December 18, 2024, Washington Independent Review of Books)

The big story throughout the book is that different elements of music are processed by different circuits in our brains, and the separate pieces of information are collated and then transferred to new circuits in order to process more complex aspects of the music. Details about pitch, duration, and loudness are stored early on, and the cooperating chain of brain departments eventually turns to complicated issues like the shape of a melody, the sonic character of instruments, and the emotional connections for the listener.

Few human activities compare to listening to music — although hikes in the wild and dancing are distant siblings — with its epic journey of interoffice memos linking both a network of small circuits and the often-isolated two hemispheres of the brain. It’s this sweeping process that leads to medicinal and therapeutic benefits; listening to music can open up alternate neural pathways to substitute for burned-out or dormant ones, and it can also rejuvenate paths exhausted by stress.

Among the book’s other fascinating takeaways: Playing music or singing decreases levels of the stress hormone cortisol, leaving us more relaxed. Children get attached to inanely catchy songs like “Baby Shark” because the repetition of musical information is building the brain pathways they’ll need to enjoy the greater benefits of music later on. Because adults already built their own pathways in childhood, these songs often drive them crazy. (Take heart, Mom and Dad: They really are good for the kids.)

For most music-therapy applications (stress/pain relief, mood alteration, and treating complex neurological dysfunction), the best results happen when the listener picks music they already love. (This means Zell Miller was onto something with his Charlie Daniels theory.) But it’s also true that increased understanding of how music works helps lead to improvements in brain health, even for non-virtuosos. In other words, musical comfort food and the musical equivalent of high fiber are both good for you.

…AND CHEAPER…:

Researchers took the key weakness of renewable energy and made it a superpower: When they analyzed renewable energy supply and power demand at an ultra fine scale, the team discovered tremendous new opportunities for a low-cost, reliable green grid. (Sarah DeWeerdt, December 10, 2024, Anthropocene))

Skeptics of renewable energy development often point out that the wind doesn’t always blow and the sun doesn’t always shine. True enough, but when the sun isn’t shining in one place, the wind is often blowing there, or somewhere else that’s not too far away.

These patterns open up the possibility of complementarity: using different renewable energy sources to balance each other out across time and space.

COVID RESTRICTIONS WERE TOO LAX:

Estimating the population-level effects of nonpharmaceutical interventions when transmission rates of COVID-19 vary by orders of magnitude from one contact to another (Richard P. Sear, 12/03/24, Phys. Rev. E )


Statistical physicists have long studied systems where the variable of interest spans many orders of magnitude, the classic example is the relaxation times of glassy materials, which are often found to follow power laws. A power-law dependence has been found for the probability of transmission of COVID-19, as a function of length of time a susceptible person is in contact with an infected person. This is in data from the United Kingdom’s COVID-19 app. The amount of virus in infected people spans many orders of magnitude. Inspired by this, I assume that the power-law behavior found in COVID-19 transmission is due to the effective transmission rate varying over orders of magnitude from one contact to another. I then use a model from statistical physics to estimate that if a population all wear FFP2/N95 masks, this reduces the effective reproduction number for COVID-19 transmission by a factor of approximately nine.

WHAT HAVE VACCINES EVER DONE FOR US?:

Cervical cancer deaths are plummeting among young U.S. women: The findings could be a preview of what’s to come if HPV vaccination rates improve (Andrea Tamayo, November 27, 2024, Science News)

“We had a hypothesis that since it’s been almost 16 years, that maybe we might be starting to see [the] initial impact of HPV vaccination on cervical cancer deaths,” says Ashish Deshmukh, an epidemiologist at the Medical University of South Carolina in Charleston. “And that’s exactly what we observed.”

Just another reason for the incel Right to hate vaccines.