How and Why Computers Roll Loaded Dice

Stephen Ornes in Quanta:

Here’s a deceptively simple exercise: Come up with a random phone number. Seven digits in a sequence, chosen so that every digit is equally likely, and so that your choice of one digit doesn’t affect the next. Odds are, you can’t. (But don’t take my word for it: Studies dating back to the 1950s reveal how mathematically nonrandom we are, even if we don’t recognize it.)

Don’t take it to heart. Computers don’t generate randomness well, either. They’re not supposed to: Computer software and hardware run on Boolean logic, not probability. “The culture of computing is centered on determinism,” said Vikash Mansinghka, who runs the Probabilistic Computing Project at the Massachusetts Institute of Technology, “and that shows up at pretty much every level.”

But computer scientists want programs that can handle randomness because sometimes that’s what a problem requires.

More here.

On free speech, crossing the Rubicon and the need to unite

Ashutosh Jogalekar in The Curious Wavefunction:

Sadly, you know that your side is losing the war of ideas when they start handing propaganda victories to the side you despise on a platter. Three years ago, in the context of a Lee statue that was going to be taken down, after that terrible anti-Semitic Charlottesville rally by white supremacists, Trump made a loathsome remark about there being “fine people” on all sides and also asked a journalist that if it was Lee today, would it be Jefferson or Washington next? I of course dismissed Trump’s remark as racist and ignorant; he would not be able to recite the Declaration of Independence if it came wafting down at him in a MAGA hat. But now I am horrified that liberals are providing him with ample ammunition by validating his words. A protest in San Francisco toppled a statue of Ulysses S. Grant – literally the man who defeated the Confederacy and destroyed the first KKK – and defaced a statue of Cervantes, a man who as far as we know did not write “Don Quixote” while he was relaxing from a day’s fighting for the Confederacy or abusing slaves. University of Wisconsin students recently asked for a statue of Lincoln to be removed because he had once said some uncomplimentary words about black people. And, since it was just a matter of time, the paper of record just published an op-ed calling for the Jefferson Memorial in Washington to be taken down. Three years ago, if you had asked me if my fellow liberals would go from Robert E. Lee to Jefferson and Washington and Grant so quickly, I would have expressed deep skepticism. But here we are, and based on recent events it won’t be paranoid at all to ask that if Washington statues are next, would streets or schools named after Washington also be added to the list? How about statues of Plato and Aristotle who supported slavery as a natural state of man? And don’t even get me started on Gandhi who said some very unflattering words about Africans. The coefficient of friction on the slippery slope is rapidly going to zero.

More here.

Barbara Ehrenreich Is Not an Optimist, but She Has Hope for the Future

Jia Tolentino in The New Yorker:

Barbara Ehrenreich was born in Butte, Montana, where her family had lived for generations, in 1941. Most of her male ancestors lost fingers working in nearby copper mines. But her father attended night school, then won a scholarship to Carnegie Mellon; the family moved to Pittsburgh and rose into the middle class. Ehrenreich studied physics in college, got a doctorate in cell biology, and, in the late sixties, alongside her husband at the time, John Ehrenreich, she became involved in health-care organizing and antiwar activism.

In the decades since, Ehrenreich has tried, as a writer and an activist, to forge a bridge between the working and middle classes. She published her first two books—one on chemistry and one, co-written with her husband, about student protest—in 1969, and started attracting a wide audience in the nineteen-seventies, when she began writing for the influential feminist magazine Ms. She’s now published more than twenty books, including the 2001 bestseller “Nickel and Dimed,” about the daily indignities of low-wage work, and “Natural Causes,” a 2018 polemic about the wellness industry and the illusion of control. Her latest, “Had I Known: Collected Essays,” which brings together work from the past four decades, examines health, the economy, feminism, “bourgeois blunders,” God, science, and joy.

I recently visited Ehrenreich at home, in her fifth-floor condo outside Washington, D.C. Like her, the place was no-nonsense but welcoming. There were magazines on side tables, and shelves piled with books. She had broken her arm the previous weekend—“attacked,” she said, “by a laundry basket,” which she’d tripped over in the dark—and had enlisted a publicist at Twelve Books to pick up sandwiches and drinks for us. She asked over e-mail if I had any dietary preferences or restrictions, and I said that I valued all sandwiches but preferred one without mayonnaise, a choice that later became the subject of discussion. After selecting a turkey sandwich with mustard—Ehrenreich had chicken salad—I sat down with her in a small sunroom overlooking the Potomac River, with a peaceful view of our nation’s stressful capital. Ehrenreich nestled into a wicker love seat, propping her feet up, her right arm balanced gingerly in a sling. Later, as the coronavirus began shutting down the country, we spoke again, over the phone. These two conversations have been combined and edited for length and clarity.

More here.

Karachi’s Delicious and Historic Burns Road

Dr. Saba Noor in Youlin:

Initially, the street was named after a British doctor/spy named James Burnes. Although the name was changed to Muhammad Bin Qasim Road Post-Partition, it is still known as Burns Road or more affectionately, “Buns Road”. But the neighborhoods around Burns Road are considered to have housed the earliest settlements in the city of Karachi, dating back to 1857.

Wealthy migrants from cities like Delhi settled in the Burns Road Area. Other migrants, ethnicities, and brotherhoods settled there, including the Punjabi Saudagaran-e-Delhi, a community of Punjabi Muslims who settled largely in the old parts of Delhi. Many of the food vendors trace their family linkage to this community of Muslims, and have wider associations with migrants from India. Some believe that food vendors started gathering on the road when migrants wanted to have the same culinary experiences they did in India.

This street has seen a lot of political turmoil and uncertainty, which affected how restaurants and vendors conducted their businesses, from Ayub’s 1964-65 campaign against Ms. Fatima Jinnah to the rise of the Muttahida Qaumi Movement Party (MQM). Even in times of instability, people would gather here for the comfort of great food, and a strong sense of community in the face of changing times. And at times in broad daylight, the structures of the old buildings on Burns Road, and the uniquely crafted balconies feel like the ghosts of a bustling, cosmopolitan era of Karachi. This place is known for its diverse, yet humble food that caters to a range of tastes and pockets. Customers visit late into the night, and Burns Road is perhaps best enjoyed with an empty stomach and an open mind. While people have their favorite restaurants, it is recommended to experiment with new tastes and make new favorites. The following are some of the oldest institutions on the street, which have been serving delicious signature dishes for generations.

More here.

Friday Poem

Molly’s Soliloquy

O and the sea the sea crimson sometimes like fire and the glorious sunsets and the
figtrees in the Alameda gardens yes and all the queer little streets and pink and blue
and yellow houses and the rosegardens and the jessamine and geraniums and
cactuses and Gibraltar as a girl where I was a Flower of the mountain yes when I put
the rose in my hair like the Andalusian girls used or shall I wear a red yes and how
he kissed me under the Moorish wall and I thought well as well him as another and
then I asked him with my eyes to ask again yes and then he asked me would I yes to
say yes my mountain flower and first I put my arms around him yes and drew him
down to me so he could feel my breasts all perfume yes and his heart was going like
mad and yes I said yes I will Yes.

James Joyce
from
Ulysses – excerpt.

Alina Szapocznikow

Emily LaBarge at Artforum:

Biography drags after Szapocznikow like a phantom limb, threatening to eclipse a practice as rooted in materiality and experiment as it is in the individual life experience of a body and mind. Born to a Jewish family in Kalisz, Poland, in 1926, she survived two ghettos and three concentration camps, as well as tuberculosis, before dying of breast cancer at age forty-six. Her work has frequently suffered from being interpreted too literally, theorized as representations of trauma or of psychic wounds. But every encounter I’ve had demands the opposite: The abstracted figuration Szapocznikow pursued in this later work, which hovers between the real body and its imagined or felt states, demands nuanced reading. We have the body truncated, unheroic, beguiling, as in her colored polyester resin lamps, mouths, and breasts lit from within—glowing sentinels pink, flesh colored, black, crimson. The body that grows where it shouldn’t, whose parts we cannot integrate, appears unnatural but unsettlingly erotic, tactile, as in two works titled Tumeur (Tumor), both made around 1970, consisting of lumpy mounds of resin and gauze, with ruby-red lips straining to the surface from within.

more here.

 

Memory and Forgetting in Sofia

Dimiter Kenarov at The Point:

They blew up the mausoleum—or tried to—during a live broadcast on Bulgarian national television on August 21, 1999. It was a hot and cloudless day in the capital city of Sofia, perfect weather for a demolition. Ten years after the collapse of the country’s Communist regime there was still unfinished business to take care of. The mausoleum’s one and only occupant, the mummy of Georgi Dimitrov, “the Great Leader and Teacher of the Bulgarian People,” had already been removed from its glass sarcophagus, then cremated and buried at Sofia’s Central Cemetery. Now the tomb had to go.

Intent on witnessing the event firsthand, a small crowd had decided to brave the heat on Battenberg Square, huddling behind crowd-control barriers.

more here.

Thursday, July 9, 2020

Listen to the Birds

Priscilla Wald in Public Books:

Bird omens once warned the ancients of the future. In Greece and Rome, for example, avian augury involved seers trained in the art of reading the flight of birds, who sought to make sense of a chaotic world through decoding messages from the gods. Since bird omens—or “auspices,” Latin for this kind of divination—often warned of disaster, ignoring or misreading them could be catastrophic. Ancient audiences watched tragedy unfold when hubristic rulers disregarded their augurs’ reading of these omens. (The two eagles that violently destroy a pregnant hare at the beginning of Aeschylus’s play Agamemnon, for example, forecast a Greek victory but prompt Agamemnon’s sacrifice of his daughter Iphigenia, leading, in turn, to his murder at the hands of his wife, Clytemnestra.) The legacy of bird divination is etymologically evident in such words as auguryinauguration, and auspicious (from the Latin augur and auspex). Birds, it seems, continue to point to the future.

Bird omens of a sort are the subject of two recent anthropological studies of avian flu preparedness in Asia. Both Natalie Porter, in Viral Economies, and Frédéric Keck, in Avian Reservoirs, convey the ominousness suffusing poultry farming, using birds as predictors.

More here.

The Idea of Entropy Has Led Us Astray

Aaron Hirsh in Nautilus:

By returning to the Victorian origins of the laws of thermodynamics, we can see how—and, perhaps, why—those laws have been broadly misconstrued and misapplied. In the 19th century, the first textbooks on the science of thermodynamics emerged from the work of Rudolf Clausius, in Berlin, as well as William Thomson (often called Lord Kelvin) and William Rankine, both in Glasgow. Studying how machines, such as steam engines, could exchange heat for mechanical work and vice-versa, these physicists learned of strict limits on efficiency. The best a machine could possibly do was to give up a small amount of energy as wasted heat. They also observed that if you had something that was hot on one side but cold on the other, the temperature would always even out. Their results were synthesized in the first two laws:

I. The change in the internal energy of an isolated thermodynamic system is equal to the difference between the heat supplied to the system and the amount of work done by the system on its surroundings.

II. Heat cannot spontaneously flow from a colder body to a hotter body. Or, phrased in terms of Clausius’ new concept of entropy, the total entropy of an isolated system will increase over time.

Thermodynamics was extremely useful science for a society in the throes of rapid industrialization and a shift toward a capitalistic free market. The laws and their extensions could be applied to improving the engines driving advances in productivity. Just as importantly, they could be phrased in broad terms that were ideologically aligned with the cultural transformation underway, from an agrarian community of smallholding farmers to an urban society of wage-earning factory workers.

More here.

The incredible story of New Orleans’ first black female homicide detective

Ethan Brown in The Guardian:

On 22 February 2002, Sgt Jacklean Davis was on a walk with her supervisor, Lt Samuel Lee, when Lee got a call from their commander at the seventh district in New Orleans. “The commander asked him if he knew my whereabouts, and he said, ‘Yeah, she’s here, we’re walking,’” Davis remembers.

“I need you to return back to your residence,” Davis recalls the commander telling Lee. “You’re about to be arrested. And surely, when we pulled up to Sam’s residence, they had four black cars and two police units. Four black cars for the FBI agents.”

For more than seven months, the New Orleans police department’s Public Integrity Bureau, the FBI, and the US attorney for the eastern district of Louisiana had been investigating Davis and Lee over allegations that they extorted a group of Florida promoters who hired them to work a paid detail during an Essence festival event on 7 July 2001. A paid detail is off-duty, sometimes highly paid work for police officers, and Essence is an annual event that has become a Black cultural institution since the first festival in 1995, bringing acts like Beyoncé, Mary J Blige and Prince to the city.

More here.

The Upanishads and the Bhagavad Gita

Amit Chaudhuri at the TLS:

The Upanishads, then, can hardly be called originary. They sound more like the latest in a series of disagreements; a great deal has preceded them, and reached a state of ossification before their arrival. Among what they challenge is a particular sense of causality regarding the relationship between creation and creator, which seems to have been extant when they were composed. Many traditions believe in a first cause, after which the universe comes into existence and before which there was nothing. The Upanishad’s conception of consciousness – “He moves, and he moves not”; “He is far, and he is near” – complicates the point of origin. Again, unlike Descartes’s belief that thought is both a product and a proof of existence, the Upanishad’s “What cannot be thought with the mind, but that whereby the mind can think” introduces an absence at the heart of thought. If thought can’t conceive whatever it is that produces it, then thought can’t be wholly present – a formulation that’s antithetical to the Cartesian proclamation. And since causality constantly reasserts itself as a default mode of thinking throughout history, the Upanishads remain, essentially, oppositional. They can’t occupy the space of established thought, being opposed to that space. Nor can one reduce either the Upanishads or the Gita in sociological terms to being “Brahminical” without losing sight of the fact that their language is critical-poetic – that is, they raise a critique through paradox and metaphor – rather than dogmatic or hieratic.

more here.

Revisiting Carol Reed’s 1947 masterpiece Odd Man Out

David Lehman at The American Scholar:

The secondary characters are extraordinary. As Penn State media professor Kevin Hagopian puts it in his film notes for the New York State Writers Institute, Odd Man Out is “festooned with gargoyles.” The crazed painter Lukey (Robert Newton) sees in Johnny’s suffering face the perfect model for a masterpiece of portraiture. With the bearing of a genteel bordello mistress, treacherous Theresa O’Brien (Maureen Delany) lets two of the bandits drink her whiskey in one room, while in another she informs the police of their whereabouts. Dim-witted Shell (F. J. McCormick), who collects birds and speaks in avian metaphors, discovers Johnny in a rubbish heap and relishes the reward he will get for turning in this bird with the wounded left wing. But Father Tom (W. G. Fay) persuades Shell that there is a greater reward than money and it is called Faith. When Shell wonders what Faith is, his roommate, a medical student, says, “It’s life.”

more here.

Smart Toilet That Can Detect Disease in Urine and Feces of User Created by Scientists

Hannah Osbourne in Newsweek:

A “smart toilet” that can detect disease by collecting data from the urine and feces of a user has been developed by scientists in the U.S. The team, led by researchers at Stanford University, developed a device that can be mounted to a standard toilet that incorporates a number of features, including test strips and video cameras, to analyze features of a person’s bodily waste. Details of the smart toilet have been published in Nature Biomedical Engineering. The team hopes their smart toilet could lead to disease prevention and prediction, by monitoring the user’s health and flag any anomalies as and when they may arise. Diseases that could be targeted include colorectal and urological cancers. Smart devices to aid with disease prevention and detection are becoming increasingly prevalent and the market is moving quickly.

In February, a global initiative was launched by researchers in the U.K. to harness wearables in a bid to find “fingerprints” of neurological diseases like Alzeheimer’s. By using digital health technology, the team hopes to identify people at most risk of these diseases improving early detection rates. Last month, research published in the Journal of the American College of Cardiology found mobile health devices, such as fitness trackers, smart watches and mobile phones, could be used to screen for and detect people with atrial fibrillation, which can cause an irregular heart rate. The idea of a smart toilet being used to monitor health is not new. Japanese firm Toto developed a toilet that could measure urinary sugar and hormone levels as far back as the early 2000s, but demand for the product was low. Last March, researchers at the Rochester Institute of Technology announced they had developed a toilet-based cardiovascular monitoring system. The toilet seat can measure things like heart rate and blood pressure. The seat could be given to people with congestive heart failure, and the data could be analyzed so if a person’s condition is deteriorating, health providers can be alerted.

The latest design goes further than other smart toilet designs as it collects data from a person’s urine and feces through a variety of gadgets. “Our concept dates back well over 15 years,” Sanjiv Gambhir, professor and chair of radiology at Stanford, and corresponding author on the Nature study, said in a statement. The team has now completed a pilot study of 21 participants. A user is identified by the smart toilet by fingerprint recognition on the flush, and a camera inside that can identify “the distinctive features of their anoderm.” Gambhir explained: “The whole point is to provide precise, individualized health feedback, so we needed to make sure the toilet could discern between users. We know it seems weird, but as it turns out, your anal print is unique.”

More here.

Thursday Poem

 

TheKnee

Officer, I can’t breathe
Officer, I can’t breathe
Officer, I can’t breathe
Officer, I can’t breathe
My oh my, I’m going to die
My oh my, I don’t know why
Officer, I can’t breathe
Officer, I can’t breathe
Officer, I can’t breathe
Officer, I can’t breathe
My oh my, I’m going to die
My oh my, I don’t know why
Officer, I can’t breathe
Officer, I can’t breathe
Officer, I can’t breathe
Officer, I can’t breathe
My oh my, I’m going to die
My oh my, I don’t know why
Officer, I can’t breathe

Officer, I can’t breathe

Officer, I can’t breathe

Officer, I can’t breathe
.

by Cornelius Eady
from Lyrics for Liberty

Customized DNA rings aid early cancer detection in mice

From Stanford Medicine:

Imagine: You pop a pill into your mouth and swallow it. It dissolves, releasing tiny particles that are absorbed and cause only cancerous cells to secrete a specific protein into your bloodstream. Two days from now, a finger-prick blood sample will expose whether you’ve got cancer and even give a rough idea of its extent. That’s a highly futuristic concept. But its realization may be only years, not decades, away. Stanford University School of Medicine investigators administered a customized genetic construct consisting of tiny rings of DNA, called DNA minicircles, to mice. The scientists then showed that mice with tumors produced a substance that tumor-free mice didn’t make. The substance was easily detected 48 hours later by a simple blood test. The technique has the potential to apply to a broad range of cancers, so someday clinicians might be able not only to detect tumors, monitor the effectiveness of cancer therapies and guide the developments of anti-tumor drugs, but — importantly — to screen symptom-free populations for nascent tumors that might have otherwise gone undetected until they became larger and much tougher to treat.

The hunt for cancer biomarkers — substances whose presence in an individual’s blood or urine flags a probable tumor — is nothing new, said the study’s senior author, Sanjiv “Sam” Gambhir, professor and chair of radiology and director of the Canary Center at Stanford for Cancer Early Detection. High blood levels of prostate-specific antigen, for example, can signify prostate cancer, and there are also biomarkers that sometimes signal ovarian and colorectal cancer, he said. But while various tumor types naturally secrete characteristic substances into the blood, the secreted substance is typically specific to the tumor type, with each requiring its own separate test. Complicating matters, these substances are also quite often made in healthy tissues, so a positive test result doesn’t absolutely mean a person actually has cancer. Or a tumor — especially a small one — simply may not secrete enough of the trademark substance to be detectable.

Gambhir’s team appears to have found a way to force any of numerous tumor types to produce a biomarker whose presence in the blood of mice unambiguously signifies cancer, because none of the rodents’ tissues — cancerous or otherwise — would normally be making it. This biomarker is a protein called secreted embryonic alkaline phosphatase. SEAP is naturally produced in human embryos as they form and develop, but it’s not present in adults.

More here.

Wednesday, July 8, 2020

Alexander Calder in Public and Private: Jed Perl in conversation with Morgan Meis

From The Easel:

Morgan Meis: Reading your second volume, I got a feeling that sometimes you struggled – as I think everyone has struggled – with where to place Calder in art history. Do you feel you reached a conclusion on that?

Jed Perl: Calder isn’t easy to place. Ultimately that’s the measure of his greatness. Many people have struggled with the question of Calder’s relationship with Surrealism. Calder and some close friends, like Miró and Masson, all insisted that they were at odds with Surrealism. What was important for them, and certainly for Calder, was being in an atmosphere and ambience of ideas, theories and experiments — people doing this or that. Calder, like Miró and Masson, was nourished by the Surrealist environment; sometimes, they contributed to it, at other times they opposed it. There was a complex and dynamic process going on. Neither Miró, Masson nor Calder wanted to be pinned down or labelled by André Breton, the ringleader of the Surrealists. Geniuses are nurtured in very mysterious ways. There are so many influences that were more important to Calder than whatever he absorbed from the Surrealists. Calder was deeply influenced by Bosch’s great triptych, The Garden of Earthly Delights. He was immensely interested in architecture and architectural forms, both ancient and modern.

More here.