Jennifer Ouellette in Quanta:

Gerardo Ortiz remembers well the time in 2010 when he first heard his Indiana University colleague John Beggs talk about the hotly debated “critical brain” hypothesis, an attempt at a grand unified theory of how the brain works. Ortiz was intrigued by the notion that the brain might stay balanced at the “critical point” between two phases, like the freezing point where water turns into ice. A condensed matter physicist, Ortiz had studied critical phenomena in many different systems. He also had a brother with schizophrenia and a colleague who suffered from epilepsy, which gave him a personal interest in how the brain works, or doesn’t.
Ortiz promptly identified one of the knottier problems with the hypothesis: It’s very difficult to maintain a perfect tipping point in a messy biological system like the brain. The puzzle compelled him to join forces with Beggs to investigate further.
Ortiz’s criticism has beleaguered the theory ever since the late Danish physicist Per Bak proposed it in 1992. Bak suggested that the brain exhibits “self-organized criticality,” tuning to its critical point automatically. Its exquisitely ordered complexity and thinking ability arise spontaneously, he contended, from the disordered electrical activity of neurons.
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IQ scores have been steadily falling for the past few decades, and environmental factors are to blame, a new study says.
If you wade through the
What do we mean by diversity? And why is it good – or not?
I first encountered Lorrie Moore when I read “How to Become a Writer,” a mesmerizingly bleak story from her 1985 debut collection, Self-Help, which I imagine to be so frequently anthologized because editors want something of hers and because the title is so appealing. Besides, it’s a promising one, suggesting a clear set of instructions. Like much of Self-Help, the story is voiced in second-person imperative, but it can only offer directions down a road to nowhere: “First,” its opening lines instruct, “try to be something, anything, else.”
After the success of my predictions for the 2010 and
One way to gauge likely outcomes is to look at bookmakers’ odds. These companies use professional statisticians to analyze extensive databases of results in a way that quantifies the probability of different outcomes of any possible match. In this way, bookmakers can offer odds on all the games that will kick off in the next few weeks, as well as odds on potential winners.
Into the shifting sands of Oman he follows the stories of
‘Is Finnegans Wake really important?’ my student asked me a few years ago. He was from India, sent to Australia for his education at great expense by his parents. I felt sorry for him so I had invented some cash-in-hand filing work, much of which involved compiling notes, essays, articles, emails and letters in relation to Finnegans Wake. Now he was daring to ask whether the book I’d spent much of my adult life devoted to was really of any importance.
One of the most ambitious, audacious books of recent memory, Lost Empress by Sergio de la Pava brings together a smorgasbord of plot lines and scenes ranging from the serious to the comic, including: a clash between the NFL and the Indoor Football League, the history of Joni Mitchell’s career, the heist of a lost Dalí, a court case involving a high-profile murder and an incredibly intelligent inmate, the Mandela Effect, the life of a 911 operator, the origins of a brain tumor, quantum mechanics and the mind-body divide as it relates to time and consciousness, an accidental impaling and the said consequences of such as relates to the nature of getting revenge, multiple love stories that go unfulfilled, and a fight between a pig mascot and a crab one.
On my way to a meeting on cancer and personalized medicine a few weeks ago, I found myself thinking, improbably, of the Saul Steinberg New Yorker cover illustration “View From Ninth Avenue.” Steinberg’s drawing (yes, you’ve seen it — in undergraduate dorm rooms, in subway ads) depicts a mental map of the world viewed through the eyes of a typical New Yorker. We’re somewhere on Ninth Avenue, looking out toward the water. Tenth Avenue looms large, thrumming with pedestrians and traffic. The Hudson is a band of gray-blue. But the rest of the world is gone — irrelevant, inconsequential, specks of sesame falling off a bagel. Kansas City, Chicago, Las Vegas and Los Angeles are blips on the horizon. There’s a strip of water denoting the Pacific Ocean, and faraway blobs of rising land: Japan, China, Russia. The whole thing is a wry joke on self-obsession and navel gazing: A New Yorker’s world begins and ends in New York.
By the time Couples came out, John Updike had already published four novels, three story collections, two poetry collections, and a volume of assorted prose. He had been called, by the New York Times Book Review, “the most significant young novelist in America,” and had been sent by the State Department on a tour of the Communist bloc. And yet there was a growing sense that he had not made a major statement on the issues of the day. He could describe a barn well enough, but to what end? The man whose name will be forever asterisked with the insult David Foster Wallace made famous—“just a penis with a thesaurus”—was thought to be clever but a little small, too decorative, and overly fond of childhood reminiscence. Norman Podhoretz complained that Updike “has very little to say.” John Aldridge put him in “the second or just possibly the third rank of serious American novelists.” Elizabeth Hardwick admired Rabbit, Run, but thought there was “something insignificant, or understated, or too dimly felt in the heart of Rabbit himself.” As for his sexual frankness, Updike, like his contemporaries, had “not decided or discovered in what way this frankness will change the work itself. It cannot be merely interlarded like suet in the roast.”
The Congo is one of the most biodiverse countries in the world. It was here that
Liberal democracy has enjoyed much better days. Vladimir Putin has entrenched authoritarian rule and is firmly in charge of a resurgent Russia. In global influence, China may have surpassed the United States, and Chinese president Xi Jinping is now empowered to remain in office indefinitely. In light of recent turns toward authoritarianism in Turkey, Poland, Hungary, and the Philippines, there is widespread talk of a “democratic recession.” In the United States, President Donald Trump may not be sufficiently committed to constitutional principles of democratic government.