Showing posts with label evolution. Show all posts
Showing posts with label evolution. Show all posts

Monday, August 21, 2017

Generative Design: The World Can Look and Perform Any Way You Want It To


newatlas |  One little button in a piece of CAD software is threatening to fundamentally change the way we design, as well as what the built world looks like in the near future. Inspired by evolution, generative design produces extremely strong, efficient and lightweight shapes. And boy do they look weird.

Straight lines, geometric curves, solid surfaces. The constructed world as we know it is made out of them. Why? Nature rarely uses straight lines. Evolution itself is one of the toughest product tests imaginable, and you don't have a straight bone in your body, no matter how much you might like one. 

Simple shapes are popular in human designs because they're easy. Easy to design, especially with CAD, and easy to manufacture in a world where manufacturing means taking a big block or sheet of something, and machining a shape out of it, or pouring metals into a mold.

But manufacturing is starting to undergo a revolutionary change as 3D printing moves toward commercially competitive speeds and costs. And where traditional manufacturing incentivizes the simplest shapes, additive manufacturing is at its fastest and cheapest when you use the least possible material for the job.

That's a really difficult way for a human to design – but fairly easy, as it turns out, for a computer. And super easy for a giant network of computers. And now, exceptionally easy for a human designer with access to Autodesk Fusion 360 software, which has it built right in.

Sunday, April 16, 2017

Physical Basis for Morphogenesis: On Growth and Form


nature |  Still in print, On Growth and Form was more than a decade in the planning. Thompson would regularly tell colleagues and students — he taught at what is now the University of Dundee, hence the local media interest — about his big idea before he wrote it all down. In part, he was reacting against one of the biggest ideas in scientific history. Thompson used his book to argue that Charles Darwin’s natural selection was not the only major influence on the origin and development of species and their unique forms: “In general no organic forms exist save such as are in conformity with physical and mathematical laws.”

Biological response to physical forces remains a live topic for research. In a research paper, for example, researchers report how physical stresses generated at defects in the structures of epithelial cell layers cause excess cells to be extruded.

In a separate online publication (K. Kawaguchi et al. Nature http://dx.doi.org/10.1038/nature22321; 2017), other scientists show that topological defects have a role in cell dynamics, as a result of the balance of forces. In high-density cultures of neural progenitor cells, the direction in which cells travel around defects affects whether cells become more densely packed (leading to pile-ups) or spread out (leading to a cellular fast-lane where travel speeds up).

A Technology Feature investigates in depth the innovative methods developed to detect and measure forces generated by cells and proteins. Such techniques help researchers to understand how force is translated into biological function.

Thompson’s influence also flourishes in other active areas of interdisciplinary research. A research paper offers a mathematical explanation for the colour changes that appear in the scales of ocellated lizards (Timon lepidus) during development (also featured on this week’s cover). It suggests that the patterns are generated by a system called a hexagonal cellular automaton, and that such a discrete system can emerge from the continuous reaction-diffusion framework developed by mathematician Alan Turing to explain the distinctive patterning on animals, such as spots and stripes. (Some of the research findings are explored in detail in the News and Views section.) To complete the link to Thompson, Turing cited On Growth and Form in his original work on reaction-diffusion theory in living systems.

Finally, we have also prepared an online collection of research and comment from Nature and the Nature research journals in support of the centenary, some of which we have made freely available to view for one month.

Sunday, March 05, 2017

Artificial Intelligence and Creative Work



cnbc |  To the average person, the billboard on the bus stop on London's Oxford Street was a standard coffee-brand ad.  Every few seconds, the digital poster would change. Sometimes, it would feature a wide range of drab grays and blocks of text. Other times, it was a minimalistic image with a short saying.

What was unique about this particular poster, which ran in two locations at the end of July 2015, wasn't the fact that people were looking at it. Rather, it was looking at them — and learning. Using facial tracking technology and genetics-based algorithms, the poster took the aspects that people looked at the longest and then incorporated that into the next design evolution.

"We were surprised how quickly it learned," said Sam Ellis, business director of innovation at M&C Saatchi. "It got to a state of where it felt like it was in the right place a bit faster than we thought."

In less than 72 hours, the M&C Saatchi advertisement was creating posters in line with the current best practices in the advertising industry, which had been developed over decades of human trial and error like realizing three to five word slogans work best.

"We thought [our employees] would be nervous about it: Is this going to kill off creative?" Ellis said. "What they started to realize is that it could be really, really useful based on its insight."

M&C Saatchi's Ellis believes eventually ad agencies will be smaller, because AI will be able to accomplish tasks with a high degree of accuracy — for much less money than now — and will make outsourcing tasks a lot more effective.

As our machines become more sophisticated and more details about our lives are recorded as data points, AI is getting to the point where it knows a tremendous amount about humans. It can tell what a person is feeling. It knows the difference between a truth and a lie. It can go through millions of permutations in a second, coming up with more variations than a human could think of. It knows your daily routine, like when you're most likely going to want a cold beer on a hot summer day.

Saturday, March 04, 2017

"Computer Virus" Will Cease Being a Metaphor During My Lifetime


thescientist |  Yaniv Erlich and colleagues encoded large media files in DNA, copied the DNA multiple times, and still managed to retrieve the files without any errors, they reported in Science today (March 2). Compared with cassette tapes and 8 mm film, DNA is far less likely to become obsolete, and its storage density is roughly 215 petabytes of data per gram of genetic material, the researchers noted.

To test DNA’s media-storage capabilities, Erlich, an assistant professor of computer science at Columbia University in New York City, and Dina Zielinski, a senior associate scientist at the New York Genome Center, encoded six large files—including a French film and a computer operating system (OS), complete with word-processing software—into DNA. They then recovered the data from PCR-generated copies of that DNA. The Scientist spoke with Erlich about the study, and other potential data-storage applications for DNA.

The Scientist: Why is DNA a good place to store information?

Yaniv Erlich: First, we’re starting to reach the physical limits of hard drives. DNA is much more compact than magnetic media—about 1 million times more compact. Second, it can last for a much longer time. Think about your CDs from the 90s, they’re probably scratched by now. [Today] we can read DNA from a skeleton [that is] 4,000 years old. Third, one of the nice features about DNA is that it is not subject to digital obsoleteness. Think about videocassettes or 8 mm movies. It’s very hard these days to watch these movies because the hardware changes so fast. DNA—that hardware isn’t going anywhere. It’s been around for the last 3 billion years. If humanity loses its ability to read DNA, we have much bigger problems than data storage.

TS: Have other researchers tried to store information in DNA?

YE: There are several groups that have already done this process, and they inspired us, but our approach has several advantages. Ours is 60 percent more efficient than previous strategies and our results are very immune to noise and error. Most previous studies reported some issues getting the data back from the DNA, some gaps [in the information retrieved], but we show it’s easy. We even tried to make it harder for ourselves . . . so we tried to copy the data, and the enzymatic reaction [involved in copying DNA] introduces errors. We copied the data, and then copied that copy, and then copied a copy of that copy—nine times—and we were still able to recover the data without one error. We also . . . achieved a density of 215 petabytes per one gram of DNA. Your laptop has probably one terabyte. Multiply that by 200,000, and we could fit all that information into one gram of DNA.

Tuesday, February 28, 2017

J.P. Morgan Chase & Co. Embracing AI and Shedding Useless Humans



bloomberg |  At JPMorgan Chase & Co., a learning machine is parsing financial deals that once kept legal teams busy for thousands of hours.

The program, called COIN, for Contract Intelligence, does the mind-numbing job of interpreting commercial-loan agreements that, until the project went online in June, consumed 360,000 hours of work each year by lawyers and loan officers. The software reviews documents in seconds, is less error-prone and never asks for vacation.

While the financial industry has long touted its technological innovations, a new era of automation is now in overdrive as cheap computing power converges with fears of losing customers to startups. Made possible by investments in machine learning and a new private cloud network, COIN is just the start for the biggest U.S. bank. The firm recently set up technology hubs for teams specializing in big data, robotics and cloud infrastructure to find new sources of revenue, while reducing expenses and risks.

The push to automate mundane tasks and create new tools for bankers and clients -- a growing part of the firm’s $9.6 billion technology budget -- is a core theme as the company hosts its annual investor day on Tuesday.

Behind the strategy, overseen by Chief Operating Operating Officer Matt Zames and Chief Information Officer Dana Deasy, is an undercurrent of anxiety: Though JPMorgan emerged from the financial crisis as one of few big winners, its dominance is at risk unless it aggressively pursues new technologies, according to interviews with a half-dozen bank executives.

Friday, December 23, 2016

The Darwinian Interlude - Metagenomics


TechnologyReview |  Carl Woese published a provocative and illuminating article, “A New Biology for a New Century,” in the June 2004 issue of Microbiology and Molecular Biology Reviews. His main theme is the obsolescence of reductionist biology as it has been practiced for the last hundred years, and the need for a new biology based on communities and ecosystems rather than on genes and molecules. He also raises another profoundly important question: when did Darwinian evolution begin? By Darwinian evolution he means evolution as Darwin himself understood it, based on the intense competition for survival among noninterbreeding species. He presents evidence that Darwinian evolution did not go back to the beginning of life. In early times, the process that he calls “horizontal gene transfer,” the sharing of genes between unrelated species, was prevalent. It becomes more prevalent the further back you go in time. Carl Woese is the world’s greatest expert in the field of microbial taxonomy. Whatever he writes, even in a speculative vein, is to be taken seriously.

Woese is postulating a golden age of pre-Darwinian life, during which horizontal gene transfer was universal and separate species did not exist. Life was then a community of cells of various kinds, sharing their genetic information so that clever chemical tricks and catalytic processes invented by one creature could be inherited by all of them. Evolution was a communal affair, the whole community advancing in metabolic and reproductive efficiency as the genes of the most efficient cells were shared. But then, one evil day, a cell resembling a primitive bacterium happened to find itself one jump ahead of its neighbors in efficiency. That cell separated itself from the community and refused to share. Its offspring became the first species. With its superior efficiency, it continued to prosper and to evolve separately. Some millions of years later, another cell separated itself from the community and became another species. And so it went on, until all life was divided into species.

Now, after some three billion years, the Darwinian era is over. The epoch of species competition came to an end about 10 thousand years ago when a single species, Homo sapiens, began to dominate and reorganize the biosphere. Since that time, cultural evolution has replaced biological evolution as the driving force of change. Cultural evolution is not Darwinian. Cultures spread by horizontal transfer of ideas more than by genetic inheritance. Cultural evolution is running a thousand times faster than Darwinian evolution, taking us into a new era of cultural interdependence that we call globalization. And now, in the last 30 years, Homo sapiens has revived the ancient pre-Darwinian practice of horizontal gene transfer, moving genes easily from microbes to plants and animals, blurring the boundaries between species. We are moving rapidly into the post-Darwinian era, when species will no longer exist, and the evolution of life will again be communal.

In the post-Darwinian era, biotechnology will be domesticated. There will be do-it-yourself kits for gardeners, who will use gene transfer to breed new varieties of roses and orchids. Also, biotech games for children, played with real eggs and seeds rather than with images on a screen. Genetic engineering, once it gets into the hands of the general public, will give us an explosion of biodiversity. Designing genomes will be a new art form, as creative as painting or sculpture. Few of the new creations will be masterpieces, but all will bring joy to their creators and diversity to our fauna and flora.

Does Culture Prevent or Drive Human Evolution?


nationalhumanitiescenter |  First, some terminology and background, especially for the nonspecialist.  “Evolution” has different meanings to different scientists;  a population geneticist, for example, views evolution simply as changes in allele frequencies (that is, the frequencies of the variant forms of a gene) over time.  Such changes are usually random, reflecting the fact that not everybody leaves offspring, so by chance some alleles increase in frequency and others decrease in frequency over time.  These random fluctuations, known as genetic drift, occur more rapidly in small populations than in large ones.  Genetic drift results in loss of genetic variation within populations and increases in genetic differences among populations over time, and is countered by migration among populations, which restores genetic variation within populations and decreases genetic differences among populations.  Thus, to a population geneticist, since allele frequencies are always changing because of drift and migration, by definition evolution is always happening, and it therefore makes no sense to say that humans are no longer evolving.

But to most people who are not population geneticists, biological evolution means natural selection, in the Darwinian sense:  increase in the frequency of an inherited trait which enhances the survival and/or reproductive success of individuals with that trait, also referred to as genetic adaptation.  Often, this is expressed as a response to a change in the environment, which in turn leads to a change in those traits that confer enhanced survival/reproduction. Familiar examples of genetic adaptations that resulted in human evolution include bipedality, increased brain size, loss of body hair, and variation in skin pigmentation. To say that humans have stopped evolving, then, is to say that such inherited traits no longer matter when it comes to how humans respond to their  environment.  This is the view that I often hear:  culture acts as a barrier or a buffer between us and the environment, thereby preventing human evolution.

However, if culture is a buffer, it is an imperfect one.  For example, humans are plagued by a variety of infectious diseases, and for every success story (e.g., eradication of smallpox and polio) there are diseases that resist our efforts at finding vaccinations or cures (e.g., malaria and AIDS).  And you can be sure that if our culture is unable (or unwilling) to do what it takes to prevent or cure a disease, then genetic resistance will indeed occur and will increase in frequency.  Some classic examples of natural selection in humans involve genetic variants that increase resistance to malaria, such as sickle-cell anemia.  Genetic variants that increase resistance to AIDS have been identified, and it is a safe bet that such variants will increase in frequency if there is no cure/vaccination for AIDS – but such increase comes at the expense of individuals who do not carry such genetic variants.  Evolution in response to infectious disease is thus an ongoing story in humans.

But there is an alternative view to that of culture as a (leaky) barrier to human evolution, which can be expressed as follows:  humans have been evolving and continue to evolve, not just in spite of culture, but because of culture.  That is, cultural practices have actually caused humans to evolve, and a classic example is lactose tolerance.  The story goes as follows: lactose is the major sugar present in mammalian milk, and most mammals stop making lactase, the enzyme that digests lactose, shortly after weaning because they are never again exposed to lactose in their diet.  This, incidentally, is a nice example of the evolutionary principle of  “use it or lose it”: there is no need to continue making lactase if there is no lactose in the diet.  Some humans are weird, however, in that they retain the ability to digest lactose into adulthood.  It turns out that the frequency of this trait, known as lactose tolerance (or lactase persistence), is highly correlated with milk-drinking populations in Europe and Africa, and was apparently driven to high frequency by natural selection in those populations.  Thus, a human cultural trait – domestication of cattle, thereby providing cow’s milk as a new source of nutrition – resulted in human evolution (namely, an increase in lactose tolerance).

Thursday, December 22, 2016

FAIL: Elderly Unitarian Academic Social Movement


medium |  The Cultural Evolution Society is now off the ground and ready to soar. We have an ambitious agenda to bring much-needed synthesis to biology, the social sciences, and humanities. 

This is what our founding members called for in a survey they filled out as we set out last fall.It is the rallying cry for birthing the field of cultural evolution with intellectual and cultural diversity that spans the globe. We have taken great care to ensure this diversity is present in the leadership structure of our governing body. 

Cultural evolution is a field that studies the historic development of all social behavior. It takes the tools and frameworks of biological evolution and adapts them to the patterns of cultural change — both for human societies and across the non-human world. It’s researchers study everything from anatomical changes that enable tool use to cooperative behaviors that give rise to the complex organization for social insects.

This kind of work is deeply interdisciplinary. It requires sophisticated practices of social organization in its own right to tackle the hard problems of cultural studies across such a great diversity of situations. How is it that everyday people can get “radicalized” to become terrorists? What are the factors that make technology innovation flourish in regional economies?

Questions like these have historically been approached within the silos of traditional academic fields. Adequately addressing them requires approaches that are integrated and holistic. Our solutions — so far — are not. They are fragmented and piecemeal because the knowledge we use to approach them is fragmented and piecemeal.

Now is the time to navigate the many islands of scientific knowledge and weave them into a constellation of landmarks in the same landscape. This is one of the primary tasks for our newly formed Cultural Evolution Society.

 If a map of knowledge for all the sciences were created, what shape might it take? Would it be like a spider web with linkages in multiple directions for every node? Or perhaps a labyrinth of maze-like pathways leading to lots of dead ends?

We asked this question in a more narrow domain — for the 351 members of our fledgling Cultural Evolution Society who provided information, we gathered data on the other associations and societies they are currently active in. This led to the map above with its distinctive archipelago structure. It is like a vast sea of possibilities populated with branching arms of clustered islands where people already gather.

The field of cultural evolution is uncommonly vast in its meshwork of relationships to other fields. This creates an advantage for the mission identified by our membership last year when we conducted a survey of grand challenges for the field.

The message was loud and clear that the highest priority for our community is to achieve knowledge synthesis across biology, the social sciences, and humanities.

All academic societies should strive to include a diversity of backgrounds and views in their membership and leadership. This goal is an imperative for a society dedicated to the study of cultural evolution. The CES is therefore taking special steps to include four kinds of diversity: 1) Gender; 2) Age; 3) Academic background; and 4) Nationality and Ethnicity.

To make sure that diversity is represented in the leadership in addition to the membership, we formed special committees around bylaws and electoral policy in preparation for our inaugural election — drafting a diversity mandate appropriate to the mission and agenda outlined above.



Sunday, December 11, 2016

GOD Cares Not About Your Suffering, Only Your Ability To Overcome It


NYTimes |  The point is that delivering deep and lasting reductions in inequality may be impossible absent catastrophic events beyond anything any of us would wish for. 

History — from Ancient Rome through the Gilded Age; from the Russian Revolution to the Great Compression of incomes across the West in the middle of the 20th century — suggests that reversing the trend toward greater concentrations of income, in the United States and across the world, might be, in fact, nearly impossible.

That’s the bleak argument of Walter Scheidel, a professor of history at Stanford, whose new book, “The Great Leveler” (Princeton University Press), is due out next month. He goes so far as to state that “only all-out thermonuclear war might fundamentally reset the existing distribution of resources.” If history is anything to go by, he writes, “peaceful policy reform may well prove unequal to the growing challenges ahead.”

Professor Scheidel does not offer a grand unified theory of inequality. But scouring through the historical record, he detects a pattern: From the Stone Age to the present, ever since humankind produced a surplus to hoard, economic development has almost always led to greater inequality. There is one big thing with the power to stop this dynamic, but it’s not pretty: violence.

The big equalizing moments in history may not have always have the same cause, he writes, “but they shared one common root: massive and violent disruptions of the established order.”

Saturday, December 10, 2016

Living Together: The Symbiosis of Host-Microbial Interactions



ibiology |  Advances in rRNA sequencing and other techniques have allowed scientists to characterize novel symbiotic partnerships.  In her first lecture, Dr. Margaret McFall-Ngai provides an overview of the three main types of symbiosis: mutualism (both partners benefit), commensalism (only one partner benefits), and parasitism (one partner benefits, but the other partner is harmed).  McFall-Ngai’s research is currently focused on understanding the establishment and maintenance of symbiotic relationships, and the molecular effects that these relationships have on development, health, and disease.

In her second talk, McFall-Ngai tells the story of a symbiosis between the Hawaiian bobtail squid and Vibrio fischeri (V. fischeri), a type of luminescent bacteria that enables the squid to hunt at night. McFall-Ngai and collaborators have identified the molecular mechanism by which nascent Hawaiian bobtail squid select V. fischeri from the thousands of other bacteria in their habitat.  V. fischeri induces developmental changes in the squid that drive daily rhythms of gene expression, which are necessary to control bacterial growth, a crucial cycle in this symbiotic partnership.

Brave New World


genomemag |  Imagine if doctors could correct a cataract, for instance, not by using a scalpel or laser to perform surgery, but rather by sending off miniature surgical tools to reach right in and fix the diseased gene that was responsible. It might surprise you to learn that scientists have already shown that this sort of thing is doable today — not in humans perhaps, but in much tinier and fuzzier mice in the lab. The procedure doesn’t work perfectly every time (which partly explains why no one has tried it in a person just yet), but when it does, the animals grow healthy and disease-free.

Scientists in China successfully cured 24 mice of their eye condition, which was produced by a single, mutant copy of one gene. That demonstration, reported in the scientific literature two years ago, was billed as the first to show that it’s possible to correct a genetic disease using a genome editing tool, which scientists call CRISPR-Cas9. Although in mice, the findings offered the first proof of principle that scientists and doctors might one day have sufficient skill and precision to edit single-gene disorders out of human genomes in much the same way.

Jinsong Li, one of the leaders of the study from the Chinese Academy of Sciences, said then that he believes it is “absolutely possible to use CRISPR to cure genetic disease in the near future.” As further evidence in support of Li’s conclusion, his paper came out alongside another by researchers in the Netherlands. They had used CRISPR to correct a gene that causes cystic fibrosis in adult stem cells derived from patients with the single-gene disorder.

Atlas of the RNA Universe



phys.org |  As the floor plan of the living world, DNA guides the composition of animals ranging from unicellular organisms to humans. DNA not only helps shepherd every organism from birth through death, it also plays an essential role in the development of many human diseases.

But it wasn't always so. Long before DNA emerged as the molecule of life, its closely related cousin, RNA (ribonucleic acid), held center stage.

The RNA world refers to a time in earth's distant past when primitive forms used RNA rather than DNA to archive genetic information, pass it along using RNA-based copying machinery and perform biological reactions.

With the emergence of DNA, RNA came to play an intermediary role, copying DNA messages known as genes and translating them into proteins. This pathway from DNA to RNA to protein has become so engrained in the field of biology it is often referred to as "the central dogma."

Recently, however, RNA's strict subservience to DNA has been called into question. New discoveries have prompted an explosion in RNA research, with vital implications for both the foundations of biology and the practice of medicine. (Sidney Altman, who won the Nobel Prize for establishing that RNA can act independently and perform chemical reactions on its own, providing powerful evidence for the RNA world hypothesis, has recently joined ASU's School of Life Sciences).

Saturday, October 15, 2016

the outgroup intolerance hypothesis for schizophrenia


rpsych |  This article proposes a reformulation of the social brain theory of schizophrenia. Contrary to those who consider schizophrenia to be an inherently human condition, we suggest that it is a relatively recent phenomenon, and that the vulnerability to it remained hidden among our hunter-gatherer ancestors. Hence, we contend that schizophrenia is the result of a mismatch between the post-Neolithic human social environment and the design of the social brain. We review the evidence from human evolutionary history of the importance of the distinction between ingroup and out-group membership that lies at the heart of intergroup conflict, violence, and xenophobia. We then review the evidence for the disparities in schizophrenia incidence around the world and for the higher risk of this condition among immigrants and city dwellers. Our hypothesis explains a range of epidemiological findings on schizophrenia related to the risk of migration and urbanization, the improved prognosis in underdeveloped countries, and variations in the prevalence of the disorder. However, although this hypothesis may identify the ultimate causation of schizophrenia, it does not specify the proximate mechanisms that lead to it. We conclude with a number of testable and refutable predictions for future research.

Sunday, October 09, 2016

Once you drink from the Nile, you are destined to return...,


FP |  Blatant ideological bias faded from scientific endeavors in the post-1978 reform era, but the ultimate goal of Chinese archaeology — to piece out the nation’s history — remained. The best-known example from that era is the Xia-Shang-Zhou Chronology Project, directly inspired by the achievements of Egyptian archaeology. State Councilor Song Jian toured Egypt in 1995 and was particularly impressed by a genealogy of the pharaohs that went back to the third millennium B.C. This prompted him to campaign for a project — included in the government’s ninth five-year plan — that would give Chinese dynasties a comparable record. Mobilizing over 200 experts on a budget of around $1.5 million over five years, the Chronology Project has been considered the largest state-sponsored project in the humanities since 1773, when the Qianlong emperor commissioned the Siku quanshu, an encyclopedia roughly 20 times the length of the Britannica.

Some questioned the Chronology Project’s motives. One of the most prominent detractors was University of Chicago historian Edward L. Shaughnessy, who complained, “There’s a chauvinistic desire to push the historical record back into the third millennium B.C., putting China on a par with Egypt. It’s much more a political and a nationalistic urge than a scholarly one.” Others criticized the project’s methods and results. The Stanford archaeologist Li Liu, for instance, took issue with the fact that it regarded the Xia as historical and fixed dates for it, when there is still no conclusive archaeological evidence for its existence.

But the project also had defenders, including Harvard anthropologist Yun Kuen Lee, who pointed out that “the intrinsic relationship between the study of the past and nationalism does not necessarily imply that the study of the past is inherently corrupted.” The usefulness of archaeology in bolstering a nation’s pride and legitimacy — explaining and, to some extent, justifying its language, culture, and territorial claims — means that most archaeological traditions have a nationalistic impulse behind them. Thus, in Israel, archaeology focuses on the period of the Old Testament; in the Scandinavian countries, it focuses on that of the Vikings. “The important question that we should ask,” Yun went on to say, “is if the scientists of the project were able to maintain scientific rigor.”

In some ways, Sun’s current theory is an unintended result of the Chronology Project’s scientific rigor. At the project’s launch in 1996, he was a Ph.D. student in the radiation laboratory of the University of Science and Technology. Of the 200 or so items of bronze ware he was responsible for analyzing, some came from the city of Yin. He found that the radioactivity of these Yin-Shang bronzes had almost exactly the same characteristics as that of ancient Egyptian bronzes, suggesting that their ores all came from the same source: African mines.

Perhaps anticipating serious controversy, Sun’s doctoral supervisor did not allow Sun to report his findings at the time. Sun was asked to hand over his data and switched to another project. Twenty years after the start of his research and now a professor in his own right, Sun is finally ready to say all he knows about the Yin-Shang and China’s Bronze Age culture.

Although the public has mostly received Sun’s theory with an open mind, it still lies outside the academic mainstream. Since the 1990s, most Chinese archaeologists have accepted that much of the nation’s Bronze Age technology came from regions outside of China. But it is not thought to have arrived directly from the Middle East in the course of an epic migration. The more prosaic consensus is that it was transmitted into China from Central Asia by a slow process of cultural exchange (trade, tribute, dowry) across the northern frontier, mediated by Eurasian steppe pastoralists who had contacts with indigenous groups in both regions.

Saturday, October 08, 2016

The Laws of Manu


NewModeloftheUniverse |  Further, the Laws of Manu relating to marriage are full of deep significance and therefore probably they are completely distorted. In his teaching concerning marriage Manu undoubtedly speaks of what happens or may happen as the result of a wrong union of people of different castes, that is, people who are different in their inner nature. And he specially emphasises those negative effects which result from the union of men of a higher inner development, men of the " higher castes ", with women of an inferior development, of the " lower castes ", or similarly, from the union of women of the higher castes with men of the lower castes. A Brahman must marry a Brahman woman. That is the principle. There must be equality in marriage. In an unequal marriage the lower brings the higher down to his own level. This is especially disastrous for women and their posterity.

The idea is that the sex instinct, both in man and in woman, and especially in woman, is the instinct of selection, the instinct of search for the best. To seek the best is the task which nature has imposed on the sex instinct. A sex instinct which does not answer this requirement does not fulfil its purpose. Degeneration inevitably results if instead of looking for the best and the strongest, the sex instinct either becomes indifferent or is drawn towards the worst and the weakest.

It is to the woman, because of her special properties, that is, because of her " instinctivity " and emotionality, that the chief role in upholding the higher properties of the race belongs. On her instincts, on her choice, depends the protection of the quality of the race. If these instincts act, the race remains on a definite level; if the instincts do not act, the race inevitably declines and degenerates. A woman who could choose a stronger and better man, but gives herself to a weak or inferior man for some kind of external consideration, or because of an inner perversion or loss of a right valuation of her own feelings, commits the greatest crime against nature. The worst possibility is the marriage of a Brahman woman with a Sudra. A Kandala, the lowest kind of man, is born from such a union.

But a right understanding and a right application of the Laws of Manu demand a very high development in men. It is quite clear that the ordinary " human " understanding could not help establishing hereditary castes. Did right castes ever exist? Did the order which Manu teaches ever exist? How can we tell? Did true Christianity ever exist? We understand perfectly well that historical " Christianity ", in any case the greater part of it, is nothing but a distortion of the ideas of Christ and the Gospels. And it is quite possible that the Laws of Manu also in their true form and in their totality were never carried out in life.

Division into castes represents an ideal social organisation in accordance with esoteric systems. The reason for this lies, of course, in the fact that it is a natural division. Whether people wish it or not, whether they recognise it or not, they are divided into four castes. There are Brahmans, there are Kshatriyas, there are Vaisyas, and there are Sudras. No human legislation, no philosophical intricacies, no pseudosciences and no forms of terror can abolish this fact. And the normal functioning and development of human societies are possible only if this fact is recognised and acted on. All theories and all attempts at forcible reform based either on the principle of hereditary castes, or on the principle of " equality ", or on the principle of the supremacy of the proletariat and the struggle against hereditary castes, are equally useless, and all alike only make the situation of humanity worse. And at the same time actually, historically, humanity knows nothing else. There are only two ways for it—either hereditary castes and despotism, or struggle with hereditary castes and despotism. All the fluctuations of the history of humanity occur between these two ways. The third way, that is, the right division of castes, is shown, but humanity has never, to our knowledge, followed this way, and there are no grounds for thinking that it will ever turn into this way.

In modern life there are no tendencies leading towards a right division of castes. There is not even any idea of such a division, and there cannot be such an idea, because the understanding of the right division of castes was forgotten long before the beginning of our civilisation.

But even an accidental approach to a right division into castes immediately gives a result which lights up history for many centuries afterwards.

All the most brilliant periods of history, without exception, were periods in which the social order approached the caste system, but in which the principle of hereditary castes either was already weakening or had not yet become firm enough. Such were the brightest periods in the history of Greece and Rome, such was the epoch of the " Renaissance ", such was the 18th century in France and such was the 19th century and the beginning of the 20th century in Russia. These approaches were accidental and imperfect, therefore they did not last long and ended in catastrophes; and usually, the higher the rise went, the deeper and more real was the fall. After such a fall people are not willing for a long time to believe that the epoch of rise has passed and will not return again; and they seldom wish to understand that the very evil of the preceding period, that is, division between the classes of society, was the cause of the rise and growth of the culture.

It is remarkable that an approach to a division into castes is almost always accompanied in history by one and the same phenomenon, namely, by the formation of an independent " intelligentsia ". The formation of an " intelligentsia " is the beginning of the gathering together of people of higher castes, people who are not yet conscious of themselves and do not understand themselves, but who, nevertheless, act in accordance with the principles of their dimly felt caste. The characteristic features of the " intelligentsia" are always and everywhere the same. First there is a craving for disinterested activity, then a very impatient feeling of the indispensability of personal freedom for all and a very rebellious attitude towards everyone and everything standing in the way of freedom of thought, speech and individual manifestation. In the conditions of modern life, that is, amidst all the absurdities of the present order of things, the " intelligentsia " becomes naturally revolutionary. It is very difficult to imagine the conditions in which the " intelligentsia " could be peaceful and loyal or constructing anything outside the sphere of science and art. In the conditions of modern life the " intelligentsia " is a destructive element. But the vagueness of its caste feeling and the vagueness of its understanding of aims and means, of friends and enemies, create the fundamental errors of the " intelligentsia ". It is carried away by Utopian theories of the common good and often finds that it has itself to serve the lower castes and be guided by their desires. Renouncing in this way its birthright the " intelligentsia " falls into the power of the " outcastes " and, becoming an instrument in their hands, begins unintentionally to serve their interests. Acting in this way the " intelligentsia " loses the meaning of its existence and the elemental forces aroused by it turn against it. This is exactly what happened in Russia with the most tragic consequences not only for the " intelligentsia " itself but chiefly for the " people " whom the " intelligentsia " strove to " liberate."

These tragic results of the " liberating movement " to which the intelligentsia gave its leadership, sympathy, and support, are explained by the appearance, immediately after the intelligentsia, of two new classes of contemporary society—the "pseudo-intelligentsia" and the " semi-intelligentsia." 

These two classes represent outcaste formations and are, so to speak, refuse from the process of the formation of the intelligentsia. Like all outcaste formations the " pseudo-intelligentsia " and the " semi-intelligentsia " contain a very large percentage of the criminal element and, in general, sympathise with the criminal, are interested in the criminal and are ready at any moment to become criminal themselves, especially (the pseudo-intelligentsia) if it does not offer much danger.

But having no value of any kind, cither moral or intellectual, these two new classes are very strong in numbers in modern life and power naturally passes into their hands (that is, into the hands of the pseudo-intelligentsia) when it falls from the hands of the old governments. In order to preserve this power they are ready to sacrifice anything and first of all the very " people " in whose name the intelligentsia carried on its struggle.

The intelligentsia cannot foresee this and even does not understand it after it has already happened because it does not understand itself and does not understand its role and the weakness of its theories.
Theories have played and they still play an unusually big role in the life of modern society. People have believed and many believe till now that they will be able to alter and reconstruct the whole life of humanity with the help of theories or by following theories. At no time in history have theories played such a role as at the present time, or, to speak more correctly, during the period immediately preceding the present time. Its faith in theories is the cardinal sin of the " intelligentsia ". The " pseudo-intelligentsia ", outwardly imitating the " intelligentsia ", also bases itself on theories but it does not idealise its theories, on the contrary it introduces a great deal of sophistry into them and makes them the means of personal adaptation to life.

Monday, September 05, 2016

gutless political theatre opts for pearl clutching and vapor catching instead of dealing with fundamental issues...,


counterpunch |  It’s the robots, stupid.

The rabid anti-immigrant campaign of Donald Trump mirrors the racist vitriol of right-wing politicians across much of the developed world. But totally absent from what passes for political debate in the U.S. and abroad is what’s really driving those ever more incendiary movements.

They are fueled by fear. There’s the dread of terrorist attacks, to be sure. But much more pervasive is the unremitting, anxiety of hundreds of millions in the developed world that they are threatened by change, by dark forces they neither understand nor control—by rampant unemployment, a diminished standard of living. They have been brought up to believe that hard work and sacrifice would bring a better life. No longer.

Donald Trump tells them hordes of immigrants, illegal aliens and disastrous trade pacts are to blame. But Trump—as well as those excoriating him–are totally missing the point.

The major force impacting our society is the spectacular advance of technologies —robotics, artificial intelligence, and machine learning. The dizzying pace of change is only going to accelerate: a chain reaction as we hurtle to warp speed.   (See my previous blog)

Why is this phenomenon not the urgent focus of our political debates? Why are we instead obsessed with illegal aliens and Hillary’s emails?

It used to be that we welcomed advances in technology. We were assured they ultimately create more jobs than they destroy. No longer.

Estimates are that close to half the jobs in the United States are likely to be wiped out or seriously diminished by technological change within the near future. These are not just factory workers, receptionists, secretaries, telephone operators and bank tellers. Sophisticated algorithms will soon replace some 140 million full-time “knowledge workers” worldwide. Those threatened range from computer programmers, to graphic artists to lawyers, to financial analysts and journalists.

Sunday, September 04, 2016

Turing Learning Means Machines Don't Need Our Help


futurity |  Researchers working with swarm robots say it is now possible for machines to learn how natural or artificial systems work by observing them—without being told what to look for.
This could lead to advances in how machines infer knowledge and use it to detect behaviors and abnormalities.
“Unlike in the original Turing test, however, our interrogators are not human but rather computer programs that learn by themselves.”
The technology could improve security applications, such as lie detection or identity verification, and make computer gaming more realistic.
It also means machines are able to predict, among other things, how people and other living things behave.

The discovery, published in the journal Swarm Intelligence, takes inspiration from the work of pioneering computer scientist Alan Turing, who proposed a test, which a machine could pass if it behaved indistinguishably from a human. In this test, an interrogator exchanges messages with two players in a different room: one human, the other a machine.

Saturday, September 03, 2016

is liberal democracy threatened by recursively self-improving technology?


guardian |  The BBC Reith Lectures in 1967 were given by Edmund Leach, a Cambridge social anthropologist. “Men have become like gods,” Leach began. “Isn’t it about time that we understood our divinity? Science offers us total mastery over our environment and over our destiny, yet instead of rejoicing we feel deeply afraid.”

That was nearly half a century ago, and yet Leach’s opening lines could easily apply to today. He was speaking before the internet had been built and long before the human genome had been decoded, and so his claim about men becoming “like gods” seems relatively modest compared with the capabilities that molecular biology and computing have subsequently bestowed upon us. Our science-based culture is the most powerful in history, and it is ceaselessly researching, exploring, developing and growing. But in recent times it seems to have also become plagued with existential angst as the implications of human ingenuity begin to be (dimly) glimpsed.

The title that Leach chose for his Reith Lecture – A Runaway World – captures our zeitgeist too. At any rate, we are also increasingly fretful about a world that seems to be running out of control, largely (but not solely) because of information technology and what the life sciences are making possible. But we seek consolation in the thought that “it was always thus”: people felt alarmed about steam in George Eliot’s time and got worked up about electricity, the telegraph and the telephone as they arrived on the scene. The reassuring implication is that we weathered those technological storms, and so we will weather this one too. Humankind will muddle through.

But in the last five years or so even that cautious, pragmatic optimism has begun to erode. There are several reasons for this loss of confidence. One is the sheer vertiginous pace of technological change. Another is that the new forces at loose in our society – particularly information technology and the life sciences – are potentially more far-reaching in their implications than steam or electricity ever were. And, thirdly, we have begun to see startling advances in these fields that have forced us to recalibrate our expectations.

A classic example is the field of artificial intelligence (AI), defined as the quest to enable machines to do things that would require intelligence if performed by a human. For as long as most of us can remember, AI in that sense was always 20 years away from the date of prediction. Maybe it still is. But in the last few years we have seen that the combination of machine learning, powerful algorithms, vast processing power and so-called “Big Data” can enable machines to do very impressive things – real-time language translation, for example, or driving cars safely through complex urban environments – that seemed implausible even a decade ago.

And this, in turn, has led to a renewal of excited speculation about the possibility – and the existential risks – of the “intelligence explosion” that would be caused by inventing a machine that was capable of recursive self-improvement. This possibility was first raised in 1965 by the British cryptographer IJ Good, who famously wrote: “The first ultraintelligent machine is the last invention that man need ever make, provided that the machine is docile enough to tell us how to keep it under control.” Fifty years later, we find contemporary thinkers like Nick Bostrom and Murray Shanahan taking the idea seriously.

Wednesday, June 01, 2016

the constructal law in intelligence?



Stuart Kauffman's 1993 book, Origins of Order, is a technical treatise on his life's work in Mathematical Biology. Kauffman greatly extends Alan Turing 's early work in Mathematical Biology. The intended audience is other mathematical and theoretical biologists. It's chock full of advanced mathematics. Of particular note, Origins of Order seems to be Kauffman's only published work in which he states his experimental results about the interconnection between complex systems and neural networks.

Kauffman explains that a complex system tuned with particular parameters is a neural network.  I can not overstate the importance of the last sentence in the paragraph above. The implication is that one basis for intelligence, biological neural networks, can spontaneously self-generate given the correct starting parameters. Kauffman provides the mathematics to do this, discusses his experimental results, and points out that the parameters in question are an attractor state.

The Weaponization Of Safety As A Way To Criminalize Students

 Slate  |   What do you mean by the “weaponization of safety”? The language is about wanting to make Jewish students feel saf...