The nostalgic appeal of simplicity

by Emrys Westacott

Nostalgia is a fascinating and remarkably common phenomenon. We have all heard older people comparing the present unfavorably with the past in spite of–or even because of–obvious material improvements in the standard of living. Most of us over the age of twenty-five have probably done this ourselves. Often the fond remembrance involves some account of how we lived more cheaply, were closer to nature, were more self-sufficient, enjoyed uncomplicated daily routines, or contented themselves with humble pleasures. The underlying idea is that things were better because they were simpler. The_Golden_Age_(fresco_by_Pietro_da_Cortona)

But nostalgia for simplicity is not confined to individuals reminiscing; across cultures it is also a persistent motif in oral and written literary traditions. In religion, philosophy and literature, it has often taken the form of harking back to an unsullied past or a golden age of happiness and virtue. The biblical account of Adam and Eve in paradise is paradigmatic, but there are many other examples. The Greek poet Hesiod, writing over two and half thousand years ago, laments the sorry condition of the world he lives in compared to that inhabited by the first humans, a “golden race of men,” who lived “free from toil and grief…..for the fruitful earth unforced bare them fruit abundantly.”[1] The Roman poet Ovid similarly describes a Golden Age when

…..of her own accord the earth produced

A store of every fruit. The harrow touched her not,

Nor did the ploughshare wound her fields.

And man content with given food,

And none compelling, gathered arbute fruits

And wild strawberries on the mountain sides…..[2]

The lines underscore not just the absence of toil or tools but also the way people desired little and lived harmoniously with nature. In these idyllic circumstances there was no need for laws, since “rectitude spontaneous in the heart prevailed.”

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Not My Mother’s Home Cooking…Please

by Carol A. Westbrook

Mom cookingWhen I see a restaurant promising their food is “just like Mom's home cooking,” I am not interested. My mother was not a great cook. As a matter of fact, most other Boomers (my generation) feel the same way. We remember meals where many of the ingredients came out of cans or from the freezer. Microwave ovens hadn't yet been invented. Birthday cakes were made from a Betty Crocker mix, while we dined on spaghetti O's, or white bread smeared with margarine, holding 2 slices of Oscar Mayer bologna. Pie was constructed using a crust mix in a box, and apples from a can. A typical meal served to company: salad of head lettuce with Kraft French dressing, green beans from a can, instant mashed potatoes to accompany the well-done roast beef, and store-bought ice cream for dessert. (Mom drew the line at Jell-O with embedded canned fruit salad and Dream Whip topping.) Worse yet, being Catholic meant that our Friday meals were meatless, so we would have to look forward to Kraft macaroni and cheese from a box, meatless spaghetti with canned sauce, fish sticks, or tuna fish casserole made with a can of that all-purpose sauce, Campbell's cream of mushroom soup. (To this day I can't tolerate tuna fish or Campbell's mushroom soup).

You get the picture. American cuisine was relatively impoverished in the early 1950's. We were just coming out of WWII, and many war-time brides had grown up learning to cook when there were shortages of crucial ingredients–sugar, eggs, butter, meat–so poor quality food was a way of life. The war effort required rations for thousands of men, and this spurred the development of many ways to preserve food in a ready-to-eat condition, from canned beans to Spam, to boxed cheese sauces and dehydrated potatoes.

After the war ended, the soldiers came home to settle down and have children–lots of them–giving rise to the term “Baby Boomer,” and the wives gave up their jobs to stay home. Moms like mine had large families to feed, and welcomed these cooking short cuts, especially when they were cheaper than making them from scratch. As a large Catholic family, with only one income and parochial school tuition to pay, our food budget was exceptionally tight. Mom had to be very parsimonious about her food choices; we didn't eat out or take in, and cheap McDonald's food hadn't yet been invented. Spam was cheaper than beef (we ate a lot of Spam in our home, since my dad, a WWII veteran, loved it!). Canned vegetables were cheaper than fresh produce except, of course, in the summer, when our large backyard city garden produced a bumper crop of beans, tomatoes, zucchini, peppers and peas. At these times we shared and traded with neighbors and friends, or took family outings that included stops in orchards and farm stands. I remember when we purchased our first deep freezer, enabling us to stock up on meat and TV dinners when they were on sale, or freeze our surplus garden vegetables –no canning for the modern wife.

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An Intro to Supertasks

by Carl Pierer

6789041074_c5ffc2dd32_oA question related to Zeno's famous paradoxes is the following: “Is it possible to complete an infinite sequence of tasks in a finite amount of times?” There seems to be something odd about supposing that an infinite amount of tasks, per definition without last task, should have been completed.

In a beautiful article, Max Black[i] argued that supertasks are logically impossible. Very eloquently, he attempts to show that to think otherwise leads to a contradiction. The first step in his argument is to suggest that if it is possible that one infinity machine exists, then it is possible that two exist. An infinity machine, simply, is a machine able to finish an infinite sequence of tasks in a finite amount of time. He continues to demonstrate that if two infinity machines should be set up to work against each other, it is impossible that both should finish their task.

Suppose we have an infinity machine, Beta. Beta is a feat of engineering, or rather, a feat of imagination. Beta is beyond the limits imposed by physics, engineering or any other subject that pays taxes to the real world. Beta is a subject of what is conceivable. There seems to be no problem involved in thinking that such a machine should exist, let us claim. Now, Beta is put between two bowls, one containing a marble, the other empty. Beta's task is to take the marble and move it from the one (right, say) bowl into the other (left). After Beta has done so, it rests for a little while. Now, take a different infinity machine, Gamma, whose task is to transfers the marble back (from left to right) whenever Beta is resting. Of course, this is an infinite task. Suppose, however, that Beta & Gamma are working ever faster. For the first ball, Beta takes half a minute to move it, then rests for half a minute. In the meantime, Gamma starts to work, taking half a minute, then resting for half a minute. For the second ball, Beta takes a quarter of a minute to move it, then rests for a quarter of a minute. For the third ball, Beta takes an eighth of a minute to move it, then rests for an eighth of a minute. For the fourth ball, you get the idea…

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Fish

by Maniza Naqvi Fish

At the end of Manhattan, across the Atlantic breakwaters, or at the beginning, swim fish from Lake Tanganyika and Lake Malawi. Those bodies which, appeared, of water, almost touched each other, on account of Plates moving, shifting, rocking; Rift Valley you know. But there they are, these fish, here. Go figure. At the end of Manhattan or at its beginning. To and fro, to and fro—Wearing expressions of ‘Who cares bro' or of worry, the more you stare, some anxious. Some not so much. Like it's hard to find your feet here. You know? Some look like they're happy. Yes. Like fish in water. Like this is exactly where they want to be. Aye? Others, eh it's not a bad place to end up, as places go. Some not so much…Blue with bulging foreheads. Yellow too. Colors for which I don't know names yet. Even. Wide eyed, aware, not a muscle twitching—just the fins or are they wings—swishing, wishing, shimmering. It's easy to see how fish out of water, might be us. Me. In a glass aquarium in the Staten Island Ferry Terminal. Now as I wrap my arm around the pole on a swaying speeding 2 train wondering if I should switch to the R or stay on this one—or maybe take the Shuttle to the 6 or move to the M and the E train. I'm on my way to City Hall, Not used to going to work here. To talk to folks, about how they care for those who haven't been born yet, for those on their way to growing up. For those done growing, for those in between all this, the work and the emotions, the business of living. In between good and bad days and limbs. In need of a helping hand, a fair shake, I'm on my way to exchange with the good folks there, cross pollinate. We are birds of a feather, same kettle of fish, they'll tell me and I'll tell them what in the World we are up to elsewhere. In this city they spend 9.7 billion—that's dollars, on such care. On 3 million—good people here. Elsewhere, whole countries, on billions not so much is spent….I wonder how the Cichlids got here. Fully formed and born already? Brought across the salty oceans in jars sloshing fresh water or what? Or, did they arrive as eggs here? I look around me at the morning commuters. This car is quiet, heads mostly down, dangling ear plugs, some sleeping, some reading novels or staring at IPhones. I glance at possible subjects; that face there, should be painted with gold leaf or silver. Maybe. Suddenly a man, beyond my vision on the other side of this thicket of passengers screams out ‘Aargh, Death squad, Stop!'—Some bite; Glance over— No one flinches, Some shrug. I nonplussed, smile and exchange glances with a fellow straphanger–a strapper I guess–who says reassuringly, unimpressed—‘He's just trying to get attention. That's all'. In silence the car hurtles on. Three stops later, with each periodic outburst, the car load leans towards the scream, glances become compassionate. The load here on this car understands. All these faces, from other places, on their way to fixing life, understand. Hurtling through the city, this life blood of the city in this vein—the artery—flowing, flying, moving fast from one end to the other, now leaning, now bumping, now brushing, jostling, jolting— now rocking against each other. Towards, a better life. This car load, understands. Train stops, doors open, a fresh pack loads on. And I resolve to return to the Ferry Terminal, take a photograph—wondering, still, about those colors, what shape they arrived in here, hatched or waiting to be. To spend their life—to live it watching commuters go by.

Painting by: Esma Djutovic

Seditious Sounds: On Conlon Nancarrow

by Gautam Pemmaraju

Conlon-nancarrow-1418515548

In a desultory speculative history, an affliction caused by the febrile May heat here in Bombay, I imagined a current day encounter between two old scheming radicals who spent their entire lifetimes up to no good—from global-trotting revolutionary activity to cloistered tomfoolery. I saw MN Roy, a founder of the Communist Party of India and the Mexican Communist Party slowly sipping tequila out of a slender glass with Conlon Nancarrow, a music composer of extraordinary conceptual depth and at one time, an American communist. Apart from a shared ideological space, these two remarkable men also shared a love for Mexico City—while Roy spent two intellectually formative, even revelatory, years in the sprawling city from 1917 to 1919, Nancarrow left America in protest twenty years later in 1940. He subsequently became a Mexican citizen and spent the rest of his life there. In my heat-induced visions, I saw the two eating fresh papaya (Nancarrow reportedly was very fond of them) and shooting the breeze. Perhaps they spoke of British spies, Bolsheviks, Hegelian dialectics, and radical humanism; my delirium did not reveal the nature of the conversation. I am more inclined to attribute things of a mundane nature to the encounter—the pleasing weather, Louis Armstrong, and seasonal fruits. It could well be that they were planning a night out at MN Roy's former house No 186, now a well-known ‘clandestine', ‘hip' night club in Mexico City (thanks to 3QD editor Robin Varghese for this gem), the irony of which is fecund with wild discursive possibilities.

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Curbing the New Corporate Power

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K. Sabeel Rahman presents his argument, over at the Boston Review with responses by Juliet B. Schor, Adam Thierer, Arun Sundararajan, Sofia Ranchordás, Dean Baker, Robin Chase, David Bollier, Mike Konczal, and Richard White. Rahman (image by Rodrigo Corral):

Recent commentary on threats posed by Internet companies has drawn on the language of antitrust and monopoly. In a provocative New Republic essay last year, Franklin Foer argued that Amazon represented a modern form of monopoly; like U.S. Steel and the monopolies of the late nineteenth century, Amazon had acquired the power to unfairly discriminate on the market. But unlike those monopolies, Foer argued, Amazon has kept consumer prices low, obscuring its market power. According to Paul Krugman, Amazon is a different kind of monopoly. It does not extract rents from consumers but rather operates as a monopsony, a company whose buying power allows it to discriminate against suppliers. Google too is the subject of monopoly concerns thanks to its dominance in information gathering and its growing political influence. Former Secretary of Labor Robert Reich used the same analogy to nineteenth-century monopolies in his critique of Comcast.

In contemporary antitrust regulation, however, the central question is whether concentrations of economic and market power enable extractive or unfair consumer prices. On that metric, it is hard to show how Amazon and other Internet companies use power in harmful ways. If these companies lower prices and increase access for consumers, how could they be considered dangerous? Defenders of these companies also point out that they face competitors in the marketplace: Amazon does not control the retail sector; on paper, at least, Google has rivals in search; at the national level, Comcast faces competition in Internet service provision.

The kinds of power that Amazon, Comcast, and companies such as Airbnb and Uber possess can’t be seen or tackled via conventional antitrust regulations. These companies are not, strictly speaking, monopolies; Uber and Airbnb, in particular, do not engage in the kind of price-fixing or market dominance that is the usual target of antitrust regulation today. These companies are better understood as platforms or utilities: they provide a core, infrastructural service upon which other firms, individuals, and social groups depend. For instance, the publisher Hachette depends on Amazon to access the book-buying public. This dependency operates in the other direction as well. Consumers depend on the diligence of Airbnb and Uber to ensure that services contracted through them are safe and as advertised.

A platform thus presents a uniquely troubling form of private power that manifests in its ability to set not just prices but also the wages or returns for producers, and, most importantly, the terms of access to the marketplace itself.

More here.

Why the World Does not Exist but Unicorns Do

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Richard Marshall interviews Markus Gabriel in 3:AM Magazine:

3:AM: Let’s start with your arguments about ontology. You argue that the world doesn’t exist and you want to be very clear that this isn’t what Kant, Heidegger or Gadamer might claim and then smuggle in a way round the claim – cheating! So can you first outline what philosophical position you are disagreeing with with your ‘real predicate’ argument? Metaphysics of a certain stripe collapses according to your idea doesn’t it?

MG: I agree with certain versions of the famous Kantian line of thought according to which existence is not what I call a proper property. In the first step of the overall argument, by a “proper property” I mean a property reference to which puts one in a position to distinguish an object in the world from other objects in the world. Existence certainly is not a property that divides the world up into two realms: that of the existing things on the one hand and that of the non-existing things (things lacking the feature of existence) on the other hand. That would be a weird world-picture.

Against this background, Kant has argued that existence is world-containment, that is, the world’s property to contain spatiotemporal individuals. On this construal, existence is precisely not a proper property of individuals. To assert that some object x exists is to say something about the world, namely that x is to be found in the world. However, this immediately raises the question whether the world itself can exist on this model? Is the world contained by the world? What exactly is the relation of containment supposed to be? Is the world some kind of set or a mereological whole? Would it even make sense to say that the world is a spatiotemporal individual located within the world and to be met with in it? What kind of totality is the world? All of Kant’s answers hinge on his notion of the world as the “field of possible experience” (CPR, A 227/B 280f.).

This creates all sorts of problems. Yet, what is right about his view is that to exist is a property of a field or a domain and not an ordinary discriminatory property of objects we encounter within the domain. As I read him, Kant distinguished between questions concerning the existence of individuals (which he takes to be a function mapping individuals onto the field of possible experience) and questions concerning the world itself. The latter, metaphysical questions, for him, are famously unanswerable.

If this is right, the question is what we mean when in metaphysics we search for the furniture of reality or the fundamental structure of the world. If “the world” is explicitly or implicitly modeled along the lines of a huge spatio-temporal container inhabited by the totality of individuals, this creates the problem that it is entirely unclear in what sense such a container is supposed to exist.

More here.

Sexual statistics

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The plus team in Plus Magazine:

Straight men have had twice as many sexual partners, on average, as straight women. Sounds plausible, seeing that men supposedly think about sex every seven seconds. Except that it's mathematically impossible: in a closed population with as many men as women (which roughly there are) the averages should match up. Someone is being dishonest, but who? And why? These questions, along with many others, are explored in Sex by numbers, a new book by David Spiegelhalter, Winton Professor for the Public Understanding of Risk at the University of Cambridge.

“Sex is a great topic,” says Spiegelhalter. “There's lots of it going on, but we don't know what goes on or how much of it, because most of the time it goes on behind closed doors. It's a really difficult topic to investigate scientifically, and a real challenge for statistics.” Spiegelhalter's aim is to get people interested in a critical approach to the numbers they hear about in the news and give them the tools to figure out if they can be believed. “It's really a book about statistics, using sex as an example.”

Statistics about sex are not all equally good. Some, like the number of births in a given year, are cast-iron facts, but others are much harder to come by. The number of sexual partners is a good example. The mismatch above comes from the third The National Survey of Sexual Attitudes and Lifestyles (Natsal), conducted between 2010 and 2012, in which men reported having had 14 sexual partners, on average, and women 7. Studies have suggested that women give lower numbers when they fear the survey isn't entirely confidential, something that doesn't seem to affect men (contrary to my expectation, it doesn't induce them to exaggerate). So that's one possible explanation for the mismatch: sadly, women still need to fear social stigma.

But there are other explanations too. One is that men (more than women) may have some of their sexual experience with sex workers. These aren't included in the surveys, so their experiences are missing from the female tally. Another is that there are different attitudes as to what counts as a sexual partner. If a woman feels she's been coerced by a man, for example, she may not want to count him.

More here.

Black America’s Lost Generation Speaks Up

Kai Wright in The Nation:

ScreenHunter_1191 May. 10 18.50Allen Bullock became an unwitting star of the Baltimore riots. In a photo splashed across the front page of The Baltimore Sun, the 18-year-old stood on the hood of a cop car, smashing the windshield with an orange cone. It was a striking portrait of the youthful rage that has forced everyone from President Obama to Geraldo Rivera to belatedly notice West Baltimore’s pain.

Bullock’s well-meaning parents urged him to turn himself in to the police. “We wanted Allen to do the right thing,” his mother told The Guardian. That sentiment plunged the family into a trick bag of morality that black people routinely encounter when they brush up against the criminal-justice system. For smashing that window, Bullock is being held on $500,000 bail and faces a sentence of four to eight years in prison. Bail for the six officers charged with taking Freddie Gray’s life topped out at $350,000. We couldn’t ask for a starker example of property being valued higher than black life.

Whether Bullock and his peers had already done “the right thing” by erupting in the streets of Baltimore will remain the subject of debate for some time. What’s clear, though, is that their rioting prompted a remarkable shift in the public discussion over police violence. What had been a narrow debate about cops opened up into something larger—and more honest.

More here.

Is there a war instinct in humans?

David P Barash in Aeon:

ScreenHunter_1190 May. 10 18.46There is something peculiarly — even paradoxically — appealing about taking a dim view of human nature, a view that has become unquestioned dogma among many evolutionary biologists. It is a tendency that began some time ago. When the Australian-born anthropologist Raymond Dart discovered the first australopithecine fossil in 1924, he went on to describe these early hominids as:
Confirmed killers: carnivorous creatures that seized living quarries by violence, battered them to death, tore apart their broken bodies, dismembered them limb from limb, slaking their ravenous thirst with the hot blood of the victims and greedily devouring living writhing flesh.

This lurid perspective has deep antecedents, notably in certain branches of Christian doctrine. According to the zealous 16th century French theologian John Calvin:
The mind of man has been so completely estranged from God’s righteousness that it conceives, desires, and undertakes, only that which is impious, perverted, foul, impure and infamous. The human heart is so steeped in the poison of sin, that it can breathe out nothing but a loathsome stench.

It’s bad enough for the religious believer to be convinced of humanity’s irrevocable sinfulness, punishable in the afterlife. But I’m even more concerned when those who speak for science and reason promote a theory of human nature that threatens to become a self-fulfilling prophecy.

More here.

Sunday Poem

My Father-in-law at Twenty

when mother-in-law is in China
father-in-law will take off his shirt
unwire the ancestral wok from the ancestral nail
mix salt and steam and cigarette ash into the fried rice
he learned to make in London.

in London when he was twenty
standing by a snowy statue in Trafalgar Square
someone taking black and white woman
in an expensive white hat.

he handsome in a dark suit
speaking dishwater English yet
the way he held his cigarette
the way he leaned towards her
dismissed the camera the cold
the woman must have understood.

I have seen those pictures
my wife knows where they are hid
and he once told me when others were in bed
how on the ship from Hong Kong to London
there was more than one fistfight with gweilo
except when the ship stopped in Egypt
a ceasefire to see the Sphinx

he has lost the photos, he says,
smiling,
coughing,
checking his heart,
blowing smoke away from me,
too long ago.

for my father-in-law at twenty
the sands of Egypt spicy under his feet
fists bloodied against condensation
stacks of unwashed dishes awaiting his arrival in London
and a mysterious white woman
smiling at him from under an expensive white hat
the riddles of the Sphinx must once have seemed
no more difficult than striking a match on ice.
.

by Timothy Kaiser
from Yuan Yang, Vol.1

Mom: The Designated Worrier

Judith Shulevitz in The New York Times:

As I was thinking about Mother's Day today and read the article below in the NYT, I remembered the following which validates the thesis presented: I once asked my mother that she had raised seven children, did she have a favorite? She promptly said, yes, of course. I was so shocked at this blatant admission and the first thought I had was I will kill myself if it is not me. Who, I demanded nervously. She wisely responded, 'Anyone of you who is vulnerable at the moment becomes my favorite and all my love and attention becomes focused on that child. So all of you have taken turns to be my favorite'.

MothersTHERE’S a story my daughter loves to hear me tell: The day after I came home from the hospital with her big brother, my first child, I was seized by the certainty that I was about to die. I sobbed; I asked my husband: “But who will keep him in socks? Who’ll make sure he’s wearing his little socks?” “Didn’t you think Daddy could put the socks on?” my daughter exclaims, delighted that I’d been so ridiculous. “I wasn’t sure he’d remember,” I say, “or have enough on hand.” New parenthood, of course, does things to your brain. But I was on to something, in my deranged, postpartum way. I should state for the record that my husband is perfectly handy with socks. Still, the parent more obsessed with the children’s hosiery is the one who’ll make sure it’s in stock. And the shouldering of that one task can cascade into responsibility for the whole assembly line of childhood. She who buys the bootees will surely buy the bottle washer, just as she’ll probably find the babysitter and pencil in the class trips. I don’t mean to say that she’ll be the one to do everything, just that she’ll make sure that most everything gets done. Sociologists sometimes call the management of familial duties “worry work,” and the person who does it the “designated worrier,” because you need large reserves of emotional energy to stay on top of it all.

I wish I could say that fathers and mothers worry in equal measure. But they don’t. Disregard what your two-career couple friends say about going 50-50. Sociological studies of heterosexual couples from all strata of society confirm that, by and large, mothers draft the to-do lists while fathers pick and choose among the items. And whether a woman loves or hates worry work, it can scatter her focus on what she does for pay and knock her partway or clean off a career path. This distracting grind of apprehension and organization may be one of the least movable obstacles to women’s equality in the workplace. IT’S surprising that household supervision resists gender reassignment to the degree that it does. In the United States today, more than half of all women work, and women are 40 percent of the sole or primary breadwinners in households with children under 18. The apportionment of the acts required to keep home and family together has also been evening out during the past 40 years (though, for housework, this is more because women have sloughed it off than because men have taken it on). Nonetheless, “one of the last things to go is women keeping track of the kind of nonroutine details of taking care of children — when they have to go to the doctor, when they need a permission slip for school, paying attention at that level,” says the social psychologist Francine Deutsch, author of “Halving It All: How Equally Shared Parenting Works.”

More here.

‘The Wright Brothers,’ by David McCullough

Daniel Okrent in the New York Times:

10OKRENT2-blog427It’s been nearly half a century since David McCullough published “The Johns­town Flood,” which initiated his career as our matchless master of popular history. His 10th book, “The Wright Brothers,” has neither the heft of his earlier volumes nor, in its intense focus on a short period in its subjects’ lives, the grandness of vision that made those works as ambitious as they were compelling. Yet this is nonetheless unmistakably McCullough: a story of timeless importance, told with uncommon empathy and fluency.

It does not begin promisingly. The first 30 or so pages consist of a somewhat desultory recounting of early years in the Wright household. But then 32-year-old Wilbur writes a letter to the Smithsonian, requesting any papers they have, or know of, regarding human flight. “I am an enthusiast,” he assures whoever might open the letter, “but not a crank in the sense that I have some pet theories as to the proper construction of a flying machine.”

Did he ever. There is no fortuity in the Wright brothers’ saga as related by McCullough, no unexpected events that changed their course. Except for Orville’s startling emergence from a horrible wreck during one of his flights, there’s not even any luck. Neither brother attended college, nor had been trained in physics or engineering, yet each step they took was not only correct but in many cases brilliant, and in nearly all cases original. That every one of those steps was also achieved through excruciating patience and obsessive attention to detail does not diminish the only word that can express what Wilbur, particularly, possessed: genius.

McCullough shows how endless calculation, application and recalculation led them to determine the proper shape of the wing, the means of manipulating its angle into the wind, how to compensate for the weight of the engine.

More here.

Analog Simulators Could Be Shortcut to Universal Quantum Computers

Peter Byrne in Scientific American:

ScreenHunter_1188 May. 09 17.13For more than 20 years, Ivan Deutsch has struggled to design the guts of a working quantum computer. He has not been alone. The quest to harness the computational might of quantum weirdness continues to occupy thousands of researchers around the world. Why hasn’t there been more to show for their work? As physicists have known since quantum computing’s beginnings, the same characteristics that make quantum computing exponentially powerful also make it devilishly difficult to control. The quantum computing “nightmare” has always been that a quantum computer’s advantages in speed would be wiped out by the machine’s complexity.

Yet progress is arriving on two main fronts. First, researchers are developing unique quantum error-correction techniques that will help keep quantum processors up and running for the time needed to complete a calculation. Second, physicists are working with so-called analog quantum simulators—machines that can’t act like a general-purpose computer, but rather are designed to explore specific problems in quantum physics. A classical computer would have to run for thousands of years to compute the quantum equations of motion for just 100 atoms. A quantum simulator could do it in less than a second.

Quanta magazine spoke with Deutsch about recent progress in the field, his hopes for the near future, and his own work on scaling up binary quantum bits into base-16 digits.

QUANTA MAGAZINE: Why would a universal quantum machine be so uniquely powerful?

IVAN DEUTSCH: In a classical computer, information is stored in retrievable bits binary coded as 0 or 1. But in a quantum computer, elementary particles inhabit a probabilistic limbo called superposition where a “qubit” can be coded as 0 and 1.

Here is the magic: Each qubit can be entangled with the other qubits in the machine. The intertwining of quantum “states” exponentially increases the number of 0s and 1s that can be simultaneously processed by an array of qubits. Machines that can harness the power of quantum logic can deal with exponentially greater levels of complexity than the most powerful classical computer. Problems that would take a state-of-the-art classical computer the age of our universe to solve, can, in theory, be solved by a universal quantum computer in hours.

More here.

Chicago, Babylon

Zaheer Kazmi in The Brooklyn Rail:

Kazmi-web1The Sears Tower in Chicago, renamed the Willis Tower in 2009, was once renowned for being the tallest skyscraper in the world, outstripping even the World Trade Center’s Twin Towers in its bid to reach the heavens. It too stands fantastically high—an awesome testament to human ingenuity, American power, and hubris.

In his musical homage to Illinois, the American songwriter, Sufjan Stevens, weaves together a collection of allusive, often dark and beautiful vignettes about the Prairie State subtly suffused with a spirit of Biblical mysticism. In the haunting song, “The Seer’s Tower,” evoking images of the Tower of Babel, Stevens intones ominously about the “tower above the earth […] built for Emmanuel.”

Seven miles above the earth,
There is Emmanuel of mothers.
With his sword, with his robe,
He comes dividing man from brothers.

Like God’s fateful decision to alienate the living from one another at Babel by creating intractable differences between them, the earthly arrival of the son of God, foretold in the prophecy of Emmanuel, also presaged division and conflict in the city of man. Once God is among us, a sacred unity is broken. Between the believers and the damned, the harbingers of divine truth leave only violence in their wake.

The play on the words, “Seer/Sear,” in the title of Stevens’s song conjures up prophetic visions and the violence they portend as much as the God’s eye view of the city from the top of the Chicago landmark.

More here.

‘Hold Still,’ a Memoir by Sally Mann

10PROSE-master675-v2Francine Prose at The New York Times:

Before reading “Hold Still,” my knowledge of Sally Mann was based entirely on her photographs of her family on their Virginia farm, her dreamlike Southern landscapes, and some memory of the controversies that have surrounded the question of whether her intimate portraits of her children, often nude, were exploitative. I’d assumed she was continuing to make new work and enjoying placid rural domesticity periodically interrupted by brief but abrasive trials in the court of public opinion.

Now her wonderfully weird and vivid memoir — generously illustrated with family snapshots, her own and other people’s photos, documents and letters — describes a life more dramatic than I had imagined. Perhaps that should be unsurprising, given how deeply her psyche and her oeuvre seem to have been marked by the South, its live oaks dripping Spanish moss, its terrible record on race and its multigenerational dynasties hiding gothic Faulknerian secrets.

more here.