from the world's big
Researchers Find Link Between Laziness and Intelligence
Do you get antsy when there's nothing to do?
Lazy persons of the world, rejoice! You might be brighter than average! A recent study that compared the “need for cognition" and physical activity levels in an individual showed that persons who enjoyed thinking more were less active than those who found thinking to be a burden or dull.
The need for cognition, or NFC, is measured by a simple test that has been in use for decades. Subjects are tested by agreeing or disagreeing with questions such as “I only think as hard as I have to" or “I really enjoy a task that involves coming up with new solutions to problems". People with a high need for cognition will respond in ways affirming that they enjoy thinking. Those with a low score, not so much.
The study took 30 people who had a high or low NFC and measured their daily levels of physical activity. The results showed that those with a higher NFC were significantly less active than those with low NFC, though this difference was less pronounced on weekends when all subjects were more active.
The authors of the study, including Todd McElory of Florida Gulf Coast University, point out that persons with a lower need for cognition also have demonstrated a lower tolerance for boredom in previous studies. This suggests that those persons may look to physical activity as a means for stimulation. Persons with higher need for cognition would not require this distraction as they demonstrated an enjoyment of thinking.
The study only concerned 60 persons who were all college students over the course of a single week, and the results might be more applicable to young adults than to adults in general. The authors of the study noted this when discussing the spike in activity by all subjects on the weekends. So more research is certainly needed before all couch potatoes can claim to be philosophers.
Interestingly, this study found that persons with above-average intelligence tend to be thinner than average, however the findings were purely correlative rather than causal. Like everyone, intelligent people come in all shapes and sizes, no matter their laziness, an important thing to remember considering the health risks of a sedentary lifestyle are considerable and difficult to counter.
So there you have it; the findings are murky but the takeaway is not without value: if you have a high need for cognition you might need to spend a little more time moving. Or at least think about it.
What would it be like to experience the 4th dimension?
Physicists have understood at least theoretically, that there may be higher dimensions, besides our normal three. The first clue came in 1905 when Einstein developed his theory of special relativity. Of course, by dimensions we’re talking about length, width, and height. Generally speaking, when we talk about a fourth dimension, it’s considered space-time. But here, physicists mean a spatial dimension beyond the normal three, not a parallel universe, as such dimensions are mistaken for in popular sci-fi shows.
If machines develop consciousness, or if we manage to give it to them, the human-robot dynamic will forever be different.
- Does AI—and, more specifically, conscious AI—deserve moral rights? In this thought exploration, evolutionary biologist Richard Dawkins, ethics and tech professor Joanna Bryson, philosopher and cognitive scientist Susan Schneider, physicist Max Tegmark, philosopher Peter Singer, and bioethicist Glenn Cohen all weigh in on the question of AI rights.
- Given the grave tragedy of slavery throughout human history, philosophers and technologists must answer this question ahead of technological development to avoid humanity creating a slave class of conscious beings.
- One potential safeguard against that? Regulation. Once we define the context in which AI requires rights, the simplest solution may be to not build that thing.
Duke University researchers might have solved a half-century old problem.
- Duke University researchers created a hydrogel that appears to be as strong and flexible as human cartilage.
- The blend of three polymers provides enough flexibility and durability to mimic the knee.
- The next step is to test this hydrogel in sheep; human use can take at least three years.
Duke researchers have developed the first gel-based synthetic cartilage with the strength of the real thing. A quarter-sized disc of the material can withstand the weight of a 100-pound kettlebell without tearing or losing its shape.
Photo: Feichen Yang.<p>That's the word from a team in the Department of Chemistry and Department of Mechanical Engineering and Materials Science at Duke University. Their <a href="https://onlinelibrary.wiley.com/doi/abs/10.1002/adfm.202003451" target="_blank">new paper</a>, published in the journal,<em> Advanced Functional Materials</em>, details this exciting evolution of this frustrating joint.<br></p><p>Researchers have sought materials strong and versatile enough to repair a knee since at least the seventies. This new hydrogel, comprised of three polymers, might be it. When two of the polymers are stretched, a third keeps the entire structure intact. When pulled 100,000 times, the cartilage held up as well as materials used in bone implants. The team also rubbed the hydrogel against natural cartilage a million times and found it to be as wear-resistant as the real thing. </p><p>The hydrogel has the appearance of Jell-O and is comprised of 60 percent water. Co-author, Feichen Yang, <a href="https://today.duke.edu/2020/06/lab-first-cartilage-mimicking-gel-strong-enough-knees" target="_blank">says</a> this network of polymers is particularly durable: "Only this combination of all three components is both flexible and stiff and therefore strong." </p><p> As with any new material, a lot of testing must be conducted. They don't foresee this hydrogel being implanted into human bodies for at least three years. The next step is to test it out in sheep. </p><p>Still, this is an exciting step forward in the rehabilitation of one of our trickiest joints. Given the potential reward, the wait is worth it. </p><p><span></span>--</p><p><em>Stay in touch with Derek on <a href="http://www.twitter.com/derekberes" target="_blank">Twitter</a>, <a href="https://www.facebook.com/DerekBeresdotcom" target="_blank">Facebook</a> and <a href="https://derekberes.substack.com/" target="_blank">Substack</a>. His next book is</em> "<em>Hero's Dose: The Case For Psychedelics in Ritual and Therapy."</em></p>
An algorithm may allow doctors to assess PTSD candidates for early intervention after traumatic ER visits.