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sci-fi scene showing the giant monster invading night city, digital art style, illustration painting

Researcher: Only 4 in 1000s of ET Groups Are Likely Malicious

Historically, sci-fi has preferred aliens to be overlords or villains. But a researcher asks us to look at the history of conflict on our own planet…

In a recent paper at Physics ArXiv, Alberto Caballero, a PhD student in conflict resolution at the University of Vigo in Spain, has calculated that there are, perhaps, four civilizations in our galaxy that are both intelligent and evil. A natural response has been “only four? Not counting us?” The estimate got quite a bit of media attention. To arrive at it, Caballero began by reviewing the history of conflicts on Earth: To reach his estimation, Caballero first counted the number of countries that invaded other countries between 1915 and 2022. He found that a total of 51 of the world’s 195 nations had launched some sort of invasion during that period. (The U.S. sat at the top of the Read More ›

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spaceships battle

Serenity Review Part 2: Great Scenes Dogged by Bad Plot Choices

We meet fresh villains and finally learn River’s secret: She knows the origin of the malevolent Reavers and it is not neat or pretty

Last time, I began my (now) three-part review of the film Serenity (2005) with a defense of creator and director Joss Whedon’s character development choices. I have issues with some of his plot choices, however, so let me pick up where the first review left off. In order to get more information on River, Wash suggests speaking with a galactic hacker known as Mr. Universe. Mr. Universe tells them that the Alliance had indeed used a subliminal signal to activate River’s programming. He also points out that River mentions the word “ Miranda”. At the same time, Simon checks on River and, as he speaks with her, she tells him that “Miranda” is a memory, but it isn’t hers. In Read More ›

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Crinkle Cut Psychedelic Pulse

Optical Illusions: What Causes Them? Try Some Out!

Illusions can be literal, physiological, or cognitive, depending on which aspect of your brain is the object of a con job on your vision

Abigail Howell, a biomedical student at ArizonaState University, explains that there are three different types of optical illusion, in which the brain incorrectly interprets what the eyes are seeing: Literal optical illusions are often produced by putting together a collection of multiple images. Each individual image may be easy to see, but the images together may look very different than the originals. This is accomplished through what is known as the “filling-in phenomena.” When the eye sends visual information to the brain, the brain chooses what parts to focus on. Depending on the focus, different layers of the image may be seen. Abigail Howell, “Ask a biologist: What causes optical illusions?” at ArizonaState University She offers as an example of Read More ›

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Multi Casino Games Concept

Gambling: WHY the House Always Wins in the Long Run…

The casinos are not cheating. They rely on the Law of Large Numbers, part of the mathematical structure underlying our universe

In this week’s podcast, “The house always wins in the long run” (June 2, 2022), Walter Bradley Center director Robert J. Marks interviews mathematician, computer scientist, and engineer Salvador Cordova on a subject on which he has strong views: gambling. Marks tells us, “I teach a graduate course on probability and stochastic processes. There I teach the stupidity of casino gambling. In statistics, there’s a theorem called the Law of Large Numbers. It teaches that you can’t win in the long run at casino games. Period. The law of large numbers is a mathematical truth. It’s a law as serious as the law of gravity. It’s why casinos always get rich and the gambler always gets poor. There is a Read More ›

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leafcutter ants

The Hive Mind: Leafcutter Ants Behave Like Farmhands But…

But they are actually following a colony algorithm rather than making individual decisions

Eric Cassell, author of Animal Algorithms: Evolution and the Mysterious Origin of Ingenious Instincts (2021), tells us that his favorite type of ant (p. 97) is the leafcutter (Attini). Its complex fungus farming provides insight into the “hive mind,” in which a natural version of a computer algorithm enables highly complex decision-making. There are 39 known species of leafcutters in the American tropics, easily recognized as the long trails (up to 30 metres) of ants, all carrying pieces of leaves they have stripped from trees. They bring them into underground nests featuring perhaps a thousand chambers housing millions of ants. There they chew up the leaves and cultivate the fungus that feeds their larvae and themselves (along with plant sap). Read More ›

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Data.

World’s Fastest Computer Breaks Into the Exascale

How fast? “If each person on Earth completed one calculation per second, it would take more than 4 years to do what an exascale computer can do in 1 second.”

The Department of Energy’s Oak Ridge National Laboratory in Tennessee announced earlier this week that its Frontier Supercomputer, having broken the exascale barrier, is the world’s fastest. It can do more than a quintillion calculations per second: The Frontier supercomputer at the Department of Energy’s Oak Ridge National Laboratory earned the top ranking today as the world’s fastest on the 59th TOP500 list, with 1.1 exaflops of performance. The system is the first to achieve an unprecedented level of computing performance known as exascale, a threshold of a quintillion calculations per second. Frontier features a theoretical peak performance of 2 exaflops, or two quintillion calculations per second, making it ten times more powerful than ORNL’s Summit system. News, “Frontier supercomputer Read More ›

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Brain: network of astrocytes (glial cells that support neurons).

The Zombie Genes That Survive Our Deaths

Death is an event that is more like a process. Some brain cells even become more active after we die. Neuroscientist Jeffrey A. Loeb explains: “Most studies assume that everything in the brain stops when the heart stops beating, but this is not so,” says the study’s corresponding author Jeffrey Loeb, the John S. Garvin Professor and head of neurology and rehabilitation at the UIC’s College of Medicine. Robby Berman, “‘Zombie’ genes in the brain get to work after you die” at Big Think (March 26, 2021) He and colleagues discovered gene expression in tissue from brain surgery that did not jive with the expressions observed in living humans, whether or not those humans had any neurological disorders. Because he Read More ›

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brain, thinking concept

Researchers: Humans Process Information Differently From Monkeys

In a paper at Nature Neuroscience, researchers reported on human vs. macaque brains on input/output systems and synergy between regions

In the ongoing research puzzle as to exactly why humans are significantly smarter than other animals, researchers writing in Nature Neuroscience have adopted an information theory approach, describing the human brain as a “distributed information-processing system.” They found that we process information differently from other primates. Our brain regions for sensory and motor functions use a simple input/output system with high reliability due to high redundancy (repetition). Our eyes duplicate most of each other’s information but that helps ensure that our view of the scene is correct. However, there is a very different way of processing information — synergistic processing — which integrates signals from across a variety of brain networks. This approach is better adapted, the researchers say, to Read More ›

Green wavy parrot is sitting on a white cage. The parrot looks out of the cage.

How “Stretch” Finally Kicked the Medical Opioid Habit

It wasn’t easy but it was the high cost of staying alive while managing his chronic medical disorder

In a recent podcast, “A first-hand account of kicking Fentanyl addiction: reversing Hebb’s law” (May 12, 2022), Walter Bradley Center director Robert J. Marks interviewed a man who got addicted to Fentanyl as a medical drug. Some opioid addictions begin in the hospital. In the previous portion of this episode, “Stretch” told Robert J. Marks how he became addicted while seeking relief from pain stemming from operations — because “neurons that fire together wire together ( Hebb’s Law )”. Then, when he sensed that drugs were ruling his life without really dealing with the pain, he set out on the road to recovery — and was surprised to find anesthetists and nurses in the recovery group with him. Now, in Read More ›

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funny boy and beagle dog are watching laptop on sofa in room

AI expert: Stop Distinguishing Between AI, Human and Animal Minds

Aaron Sloman’s approach to minds sounds a bit like panpsychism — which is increasingly accepted in science — but there are differences

Philip Ball, author of The Book of Minds: How to understand ourselves and other beings, from animals to AI to aliens (University of Chicago Press, 2022), profiles University of Birmingham computer scientist Aaron Sloman, whose 1984 paper, “The structure of the space of possible minds” sought to account for human, animal, and AI minds as “behaving systems.” Along the way, Sloman came to a significant conclusion: “We must abandon the idea that there is one major boundary between things with and without minds,” he wrote. “Instead, informed by the variety of types of computational mechanisms already explored, we must acknowledge that there are many discontinuities, or divisions within the space of possible systems: the space is not a continuum, nor Read More ›

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Female Brain Stem - Anatomy Brain

A Little-Known Structure Tells Our Brains What Matters Now

Work with monkeys and mice has shed light on the filtering role of a neglected feature of the mammalian brain

At Scientific American, we learn from a team of neuroscientists, how our brains distinguish important from unimportant sensations. We filter out many more signals than we pay attention to, especially in familiar situations. We notice what has changed — especially if it’s an opportunity or a problem. While the prefrontal cortex is associated with decision-making, it turns out to get some help from a tiny structure in the brain stem, as these researchers discovered: How does the brain accomplish these feats of focus? In recent research at Northwestern University, the University of Chicago and the Salk Institute for Biological Studies in La Jolla, Calif., we have illuminated a new answer to this question. Through several studies, we have discovered that Read More ›

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Chinese hacker. Laptop with binary computer code and china flag on the screen. Internet and network security.

The Internet Is Freedom? Not for Exiled Democracy Activists

Modern electronic communications ensure that persecution need not stop at the border, as many expat Chinese are discovering

Earlier this month, the U.S. Department of Justice announced that a U.S. citizen and four Chinese intelligence officers “had been charged with spying on “prominent dissidents, human rights leaders and pro-democracy activists” in the United States on behalf of the People’s Republic of China (PRC). Americans and others who live in open societies may not be aware of this transnational oppression problem if they do not have contacts who have escaped totalitarian regimes. Briefly, today, the persecution doesn’t stop at the border. Modern electronic communications are part of the reason why not: “If anyone doubts how serious the Chinese government is about silencing its critics, this case should eliminate any uncertainty,” said Acting Executive Assistant Director Alan E. Kohler Jr. Read More ›

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Fresh raw lobster

Asked at “The Scientist”: Do Invertebrates Have Feelings?

Just as vertebrates differ greatly in intelligence and sentience, invertebrates may differ greatly too. The seafood industry is taking heed.

People did not ask this question about invertebrates like bees and snails fifty years ago: Decades ago, scientists and lawmakers had all but reached a consensus that invertebrates could not feel pain, let alone other emotions like joy or fear. Recently, however, evidence is mounting that invertebrates are more than just reflexive beings. Experiments in bees, crabs, and octopuses show that some invertebrate animals can learn from painful experiences, have positive and negative emotion-like states, and might even experience a range of other emotions beyond pain and pleasure. But not all scientists agree that invertebrates feel anything analogous to vertebrate—much less human—emotion. Natalie Mesa, “Do Invertebrates Have Emotions?” at The Scientist (May 26, 2022) Assessing the evidence is tricky. In Read More ›

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Man having a migraine headache.

Medical Opioids: The War Between Chronic Pain and Addiction

“Stretch” tells Robert J. Marks, the surgeries did not really work and he became addicted to the painkillers while trying to live a normal, working life

In a recent podcast, “A first-hand account of kicking Fentanyl addiction: reversing Hebb’s law” (May 12, 2022), Walter Bradley Center director Robert J. Marks interviewed a man who got addicted to Fentanyl as a medical drug. Some opioid addictions begin in the hospital. In the previous portion of this episode, “Stretch” told Robert J. Marks how he became addicted to medical doses of opioids while seeking relief from pain stemming from operations — because “neurons that fire together wire together (Hebb’s Law )”. Now he talks about the experiences that set his mind on the road to recovery. Before we get started: Robert J. Marks, a Distinguished Professor of Computer and Electrical Engineering, Engineering at Baylor University, has a new Read More ›

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ants building a bridge

Do Ants Think? Yes, They Do — But They Think Like Computers

Computer programmers have adapted some ant problem-solving methods to software programs (but without the need for complex chemical scents)

Navigation expert Eric Cassell, author of Animal Algorithms: Evolution and the Mysterious Origin of Ingenious Instincts (2021), offers some insights in the book into how ants organize themselves using what amount to algorithms, without any central command: Ants are remarkably consistent in their lifestyle: All of the roughly 11,000 species of ants live in groups, large or small. There are no known solitary ants. Living in groups, they have developed a social lifestyle that includes “agriculture, territorial wars, slavery, division of labor, castes, consensus building, cities, and a symbolic language.” (p. 85) How is this managed by ants with very small brains (200,000 to 250,000 neurons) and very limited individuality? For comparison, among mammals, the agouti has roughly 857 million Read More ›

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Portrait of insidious hacker organizing virus attack on corporate servers in hideout place. Serious man looking at camera sitting at desk with multiple displays.

At the Water Cooler: They’re Talking About Computer Hacks Again

Some people appear to know all the answers to the latest assaults on our finances and privacy. If only the government would listen… (?)

In 2020, hackers threatened to release thousands of Finnish psychotherapy patients’ records to the internet unless they paid a steep ransom. Meanwhile, just last month, U.S. authorities uncovered a ‘Swiss Army Knife’ for hacking industrial control systems. “The malware toolkit, known as Pipedream, is perhaps the most versatile tool ever made to target critical infrastructure like power grids and oil refineries.” (Wired) So yes, we have a problem. Wired sums up last year’s hacking news: “As John Scott-Railton, senior researcher at University of Toronto’s Citizen Lab, puts it, ‘2021 is the year where we’re realizing that the problems we chose not to solve years or decades ago are one by one coming back to haunt us.”” (December 24, 2021) The Read More ›

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abstract image of dna chain on blurred background

Information Theory: Evolution as the Transfer of Information

Information follows different rules from matter and energy, which might change the way we see evolution

One reason that the theory of evolution is controversial is the claim that sheer randomness produces information. That is, randomly generated events are somehow selected for survival and continuing complex development (Darwinian evolution). The theory is understandably popular because, if correct, it would answer a great many questions. The problem is, we do not see randomly generated events producing complex mechanisms in the life around us. We are asked, however, to believe that this modern synthesis (MS) is true over the grand sweep of evolutionary time. Over the years, it has become evident that evolution happens in a number of ways. including horizontal gene transfer between unrelated species, epigenetic inheritance of genes that changed during our parents’ lifetimes, and convergent Read More ›

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Asian adult granddaughter hurrying over to her fallen grandpa in coma on floor and calling 911 on her mobile phone at home. elder senior fall and faint risk at home concept

Can Brain Death Be Reversed? Some Researchers Are Hopeful

Some researchers study the salamander, which can regenerate parts of its brain, for answers for brain-injured humans

Although we have been told since 1968 that brain death is irreversible (“A definition of irreversible coma. Report of the Ad Hoc Committee of the Harvard Medical School to Examine the Definition of Brain Death”), some are beginning wonder whether, with newer technologies, that is still true. Bioquark CEO Ira S. Pastor offers some thoughts: Despite the label of irreversibility associated with the 1968 Harvard Ad Hoc Committee definition, there are several documented cases in the literature of potential brain death reversal, primarily associated with younger subjects whose central nervous system maintained some degree of underlying neuroplasticity. As most leaders in this field acknowledge that residual “nests” of neuronal activity and residual blood flow do indeed exist in the recently Read More ›

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Time and space travel concept abstract background

What Would Happen If We Traveled at 2x the Speed of Light?

We can’t reach the speed of light just by speeding things up, let alone exceed it. But are there other ways?

Recently, a 13-year-old in Mumbai asked philosopher of mathematics Sam Baron what would happen if someone were to move — hypothetically — at twice the speed of light. Baron replied, As far as we know, it’s not possible for a person to move at twice the speed of light. In fact, it’s not possible for any object with the kind of mass you or I have to move faster than the speed of light. Sam Baron, “Curious Kids: what would happen if someone moved at twice the speed of light?” at The Conversation (May 24, 2022) He explains why not as follows, To accelerate an object with mass, we have to add energy. The faster we want the object to Read More ›

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3d render background illustration of ancient greek temple ruins with female goddess statue, rocks and columns burning on dark war backdrop.

Ancient Inventions That Feel Like Modern Ones

Tim Brinkhof looks at inextinguishable Greek fire and the 2000-year-old Chinese seismograph, among other wonders

New York City-based journalist Tim Brinkhof opens a window into the past on conceptually advanced technology from centuries ago or even ancient times. Take “Greek fire,” for example, that could set both enemy ships and the sea around them ablaze in an inextinguishable fire: Constantinople used it to sink the fleet of the Ummayid Caliphate in 678. The now-lost recipe probably involved petroleum, sulfur, or gunpowder. However, what makes Greek fire so impressive is not the chemistry of the fire itself but the design of the pressure pump the Byzantines used to launch it in the direction of their enemies. As the British historian John Haldon discusses in an essay titled “‘Greek Fire’ Revisited,” researchers struggle to recreate an historically Read More ›