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Year

2018

Onward exchange on the objectivity of Mathematical Knowledge

Over recent days, there has been an exchange at UD on the objectivity vs subjectivity of mathematical knowledge. This is relevant to our understanding of knowledge, and to our recognition of the credibility of Mathematical findings on debated matters. This instantly means that the specific concern and the penumbra of generalised perceptions of Mathematics, Science and objectivity of knowledge are relevant to the ID debate. So, it is appropriate to clip from the discussion in the axioms of math thread. First, BO’H and his suggestion that he and I actually in the end agree: BO’H, 34: >>[to:] EricMH – I believe that mathematics, in different respects, is both subjective and objective. [to:] kf – yes, some parts of mathematics are Read More ›

Mechanics as well as genetics is needed for viable embryo development

From Suzan Mazur at Oscillations, With the ramping up of investigations in various parts of the world into the mechanics of biology, I’ve decided to post my conversation with Institut Curie biophysicist Emmanuel Farge on the role of mechanics in reprogramming the embryo [2010], relating to his work first published in the scientific literature in 2003, which was well received by the science establishment. … Emmanuel Farge:Exactly. Because you need the gene expression to have the germ-band extension. Then after you need the germ-band extension to have the expression of Twist at the anterior pole, which is mechanically induced. What I’m saying is that you always are in a situation where you cannot say that mechanics is more important than genetics Read More ›

UD Newswatch: 74th anniversary of the June 6th, 1944 D-Day invasion of Normandy

. . . which was decisive, not only for the Second World War but for the Cold War.  For a dominant, totalitarian state in control of Mackinder’s Heartland and ranging to the Atlantic would have sobering global geostrategic consequences. D-Day Beaches vid. Summary of the thesis:  “Who rules East Europe commands the Heartland;    who rules the Heartland commands the World-Island;    who rules the World-Island commands the world.”    (Mackinder, Democratic Ideals and Reality, p. 150)    “The Geographical Pivot of History” was an article submitted by Halford John Mackinder in 1904 to the Royal Geographical Society that advanced his “Heartland Theory” Let us never forget the sacrifice that restored a bastion of freedom in Western Europe, which ultimately Read More ›

Announcement: New Walter Bradley Center to assess claims for artificial intelligence critically

What’s hot.what’s not. And what’s rot. From David Klinghoffer at ENST: — The Walter Bradley Center for Natural and Artificial Intelligence will focus on the profound concerns stirred by the mystery of minds. Join us in Seattle on Wednesday, July 11, as we launch the Bradley Center with a special public conversation at Seattle’s William Allen Theater at the Museum of Flight. It’s FREE, from 7:30 to 9:30 pm. We require that you register here to save your place. The topic for the evening: “Will the Machines Take Over? Human Uniqueness in the Age of Smart Machines.” Computers vastly outperform humans in executing calculations. But in any meaningful sense, can they host minds? Has technology revealed the emptiness of the Read More ›

Problem solved: There are no laws of physics, says prominent string theorist

And Sabine Hossenfelder, author of Lost in Math: How Beauty Leads Physics Astray, can just suck it up. From IAS director Robbert Dijkgraaf at Quanta: Scientists seek a single description of reality. But modern physics allows for many different descriptions, many equivalent to one another, connected through a vast landscape of mathematical possibility. The current Standard Model of particle physics is indeed a tightly constructed mechanism with only a handful of ingredients. Yet instead of being unique, the universe seems to be one of an infinitude of possible worlds. We have no clue why this particular combination of particles and forces underlies nature’s structure. Why are there six “flavors” of quarks, three “generations” of neutrinos, and one Higgs particle? Furthermore, the Read More ›

You can’t be an honest atheist and a progressive at the same time.

From Denyse O’Leary at MercatorNet: … She worries about the fact that some prominent atheists are attracted to the intellectual dark web, “an alliance of heretics” making “an end run around the mainstream conversation” (New York Times). The dark web includes figures like Jordan B. Peterson, Steven Pinker, and Bret Weinstein,) who want to discuss research findings and contemporary events without the muzzle of political correctness. New atheist Sam Harris, a dark webber, has recently been accused of “pseudoscientific racialist speculation” by assorted progressives. Why? Having finally read sociologist Charles Murray’s controversial book on IQ, The Bell Curve (1994), Harris doesn’t think it is mere “racist trash” but an argument from a body of data that a scientist like himself Read More ›

Sexual trappings (dimorphism) may increase the likelihood of extinction, not survival

From geologist Julie Hollis at Massive: Sexual dimorphism is a result of males and females diverging down different evolutionary paths through selection processes, such as competition to reproduce. These processes happen for a variety of reasons. In some cases, strong colors in male birds are a sign of health. The elephant seal’s bulbous nose allows him to roar loudly to defend his territory – and his harem. And the moose’s antlers are used to intimidate or fight other males. Sexual dimorphism is the end result of choices made by mating partners and can increase the likelihood of reproduction: I would bet on the moose with the biggest antlers, wouldn’t you? But what about the long run? What’s the impact on Read More ›

Artificial intelligence: Self-driving cars are oversold, says researcher

From AI researcher Filip Piekniewski at VentureBeat: Deep learning has been at the forefront of the so-called AI revolution for years now, and many people believed that it would take us to the world of the technological singularity. Many companies talked big in 2014, 2015, and 2016 when technologies such as Alpha Go were pushing new boundaries. For example, Tesla announced that its fully self-driving cars were very close, even selling that option to customers — to be enabled later via a software update. We are now in the middle of 2018 and things have changed. Not on the surface yet — the NIPS conference is still oversold, corporate PR still has AI all over its press releases, Elon Musk Read More ›

JDK argues against objective morality—by assuming the truth of objective morality.

Moral subjectivists never fail to entertain me when they try to make their philosophy seem reasonable and workable. UD commentator jdk, for example, doesn’t seem to realize how often his unstated assumptions undermine – or even nullify – the very points he is trying to make. In one exchange, he denies the existence of objective morality, but he does say, nevertheless, that he “judges” murder to be wrong – not objectively wrong – but wrong in the sense that a moral judgment is a subjective act. So I asked him to explain why he “judges” murder to be wrong. He graciously (and courageously) answered the question , and I now follow with my analysis: JDK: [I judge that murder is Read More ›

Why did human Y chromosome diversity “collapse” 7000 years ago?

From Stanford University at Eurekalert: Starting about 7,000 years ago, something weird seems to have happened to men: Over the next two millennia, recent studies suggest, their genetic diversity -specifically, the diversity of their Y chromosomes – collapsed. So extreme was that collapse that it was as if there was only one man left to mate for every 17 women. Anthropologists and biologists were perplexed, but Stanford researchers now believe they’ve found a simple – if revealing – explanation. The collapse, they argue, was the result of generations of war between patrilineal clans, whose membership is determined by male ancestors. … It’s not unprecedented for human genetic diversity to take a nosedive once in a while, but the Y-chromosome bottleneck, Read More ›

Tour the exoplanets – virtually – courtesy of NASA

From Lisa Grossman at ScienceNews: If you’re looking for starry skies, exotic plant life and extreme weather on your summer vacation, NASA’s Exoplanet Travel Bureau has just the spot. Consider a trip to Kepler 186f. This extrasolar planet is nearly 558 light-years away, so a real trip may be out of your budget — and astronomers aren’t sure if the sphere even has a life-sustaining atmosphere. But NASA’s Exoplanet Exploration website offers a virtual tour of what visiting the alien world might be like. More. Hey, don’t miss out on these artist’s impressions. The way things are going with the search for ET, humans, our domestic pets, menageries, and sanctuaries may be the first and only life these countless inhabitable Read More ›

Physicist Eugene Wigner on the principal argument against materialism

From Nobelist Eugene Wigner (1902–1995): “The principal argument against materialism is not that illustrated in the last two sections: that it is incompatible with quantum theory. The principal argument is that thought processes and consciousness are the primary concepts, that our knowledge of the external world is the content of our consciousness and that the consciousness, therefore, cannot be denied. On the contrary, logically, the external world could be denied—though it is not very practical to do so. In the words of Niels Bohr, “The word consciousness, applied to ourselves as well as to others, is indispensable when dealing with the human situation.” In view of all this, one may well wonder how materialism, the doctrine that “life could be Read More ›

Well, physics probably HAS gone off the rails if NBC is reporting it

They used to be a regular stop for news of crackpot cosmology. From Dan Falk at NBC, discussing Sabine Hossenfelder`s new book, Lost in Math: How Beauty Leads Physics Astray (June, 2018): But the new century brought a rough patch. Yes, there have been some remarkable findings, including the 2012 discovery of the Higgs Boson and the discovery of gravitational waves four years later. But those triumphs were based on theories developed decades earlier — a full century earlier in the case of gravitational waves. And new ideas like string theory (which holds that matter is made up of tiny vibrating loops of energy) remain unverified. “All of the theoretical work that’s been done since the 1970s has not produced a single successful Read More ›

Lizards and snakes backdated to Permian era, lizards lost or changed limbs many times

From at ScienceDaily: The 240-million-year-old fossil, Megachirella wachtleri, is the most ancient ancestor of all modern lizards and snakes, known as squamates, the new study, published today in the journal Nature, shows. The fossil, along with data from both living and extinct reptiles — which involved anatomical data drawn from CT scans and DNA — suggests the origin of squamates is even older, taking place in the late Permian period, more than 250 million years ago. Tiago Simões, lead author and PhD student from the University of Alberta in Canada, said: “The specimen is 75 million years older than what we thought were the oldest fossil lizards in the entire world and provides valuable information for understanding the evolution of Read More ›