From Y Combinator:

John Preskill is a theoretical physicist and the Richard P. Feynman Professor of Theoretical Physics at Caltech.

He once won a bet with Steven Hawking, which as he writes made him “briefly almost famous.” John and Kip Thorne bet that singularities could exist outside of black holes and after six years Hawking conceded that they were possible in very special, “nongeneric” conditions.

In this episode we cover what John’s been focusing on for years: quantum information, quantum computing, and quantum error correction.

What was the revelation that made scientists and physicists think that a quantum computer could exist?

John Preskill – The idea caught on about 10 years later when Peter Shore made the suggestion that we could solve problems which don’t seem to have anything to do with physics, which are really things about numbers like finding the prime factors of a big integer. That caused a lot of excitement in part, because the implications for cryptography are a big disturbing. But then physicists, good physicists– Started to consider, can we really build this thing?

Some concluded and argued fairly cogently that no, you couldn’t because of this difficulty that it’s so hard to isolate systems from the environment well enough for them to behave quantumly. It took a few years for that to sort out sort of at the theoretical level. In the mid ’90s we developed a theory called quantum error correction. It’s about how to encode the quantum state that you’d like to protect in such a clever way that even if there are some interactions with the environment that you can’t control, it still stays robust. At first, that was just kind of a theorist fantasy. It was a little too far ahead of the technology, but 20 years later, the technology is catching up. Now this idea of quantum error correction has become something you could do in the lab.

More here.

John Faithful Hamer in Quillette:

In The Wizard and the Prophet (2018), Charles C. Mann maintains that intellectual life in the 21st century is defined by a civil war between Wizards, who believe that technology will save us, and Prophets, who see various kinds of disaster on the horizon: “Prophets look at the world as finite, and people as constrained by their environment. Wizards see possibilities as inexhaustible, and humans as wily managers of the planet. One views growth and development as the lot and blessing of our species; others regard stability and preservation as our future and our goal. Wizards regard Earth as a toolbox, its contents freely available for use; Prophets think of the natural world as embodying an overarching order that should not casually be disturbed.” Steven Pinker, the author of Enlightenment Now: The Case for Reason, Science, Humanism, and Progress (2018), is a Wizard. Yuval Noah Harari, the author of Homo Deus: A Brief History of Tomorrow (2015), is a Prophet.

At its best, Enlightenment Now reads like one of those gratitude journals self-help authors tell us to keep: “Today I am thankful for . . . .” Pinker reminds us of what we in the chattering classes too often forget: namely, that modernity has for the most part been a major upgrade for humanity: “The story of human progress is truly heroic. It is glorious . . . We live longer, suffer less, learn more, get smarter, and enjoy more small pleasures and rich experiences. Fewer of us are killed, assaulted, enslaved, oppressed, or exploited by the others. From a few oases, the territories with peace and prosperity are growing, and could someday encompass the globe.”

More here.

Lewis H. Lapham in Lapham’s Quarterly:

Marco Roth in n+1:

LET’S GET THE STUPID BIT about the shared last name out of the way. It affected me. When a young wannabe, I couldn’t read him, not willingly, not without trepidation, certainly I couldn’t read him well. One overwhelming, brilliant father was enough, thank you. Later, a rueful joke: “Yes, like the novelist, not related,” or dismissive, “Roth, like Henry or Joseph.” Distance, denial, mistrust, a touch of unearned condescension, the attitude of so many writers my generation and a little older, both toward the man and the writer, whether we were tri-state Jews or golden midwest goys, like David Foster Wallace. The feeling was mutual, judging by the books. Men roughly my age, that is of a generation who would have been Roth’s children, had he wanted any, began appearing in his novels throughout the late ’90s and mid aughts. We were a bunch of whiny upstarts, puritans, biographers, journalists, “thoughtless opportunists” and “entitled schemers” (Exit Ghost) or already castrated paragons of mushy devotion to our brilliant, sexy girlfriends and the older men who covet them (“he seemed to take pleasure in deferentially calling me ‘Mr. Zuckerman’” is how one such ephebe is first characterized). Or, like Drenka’s son in Sabbath’s Theater, a cop, a character who seems to exist only so he can catch the master puppeteer in various delicta flagrantia atop his mother’s grave and stop the carnal play in the name of the law. Daughters fare worse: the tragedy inside American Pastoral, a reverse-engineered King Lear, is of a child driven to madness by her inability to acknowledge a father’s love—one of the few times in Roth’s fiction that he sympathized his way into seeing things from a parent’s point of view, and he did it by imagining a child turned terrorist.

More here.

David Adler in the NYT:

Andreas Wimmer in Aeon:

hy do some countries fall apart, often along their ethnic fault lines, while others have held together over decades and centuries, despite governing a diverse population as well? Why is it, in other words, that nation-building succeeded in some places while it failed in others? The current tragedy in Syria illustrates the possibly murderous consequences of failed nation-building. Outside of the media spotlight, South Sudan and the Central African Republic went through similar experiences in recent years. In some rich and democratic countries in western Europe, such as Spain, Belgium and the United Kingdom, longstanding secessionist movements have regained momentum. Within our lifetimes, they might well succeed in breaking apart these states. On the other hand, there is no secessionist movement among the Cantonese speakers of southern China or among the Tamils of India. And why has no serious politician ever questioned national unity in such diverse countries as Switzerland or Burkina Faso?

Before answering these questions, it is necessary to define nation-building more precisely. It goes beyond the mere existence of an independent country with a flag, an anthem and an army. Some old countries (such as Belgium) haven’t come together as a nation, while other more recently founded states (such as India) have done so. There are two sides to the nation-building coin: the extension of political alliances across the terrain of a country, and the identification with and loyalty to the institutions of the state, independent of who currently governs. The former is the political-integration aspect, the latter the political-identity aspect of nation-building. To foster both, political ties between citizens and the state should reach across ethnic divides.

More here.

Zach Carter in The Huffington Post:

More here.

Yes!

… Up ahead, in the twilight, the endless yes
that never can be reached.
……………………………………. “Yessss!”
…………………………………………………. And the light,
colorless,
intensified, calling me . . .

… It wasn’t from the sea . . . Reaching
the mouths of light that spoke it
infinitely drawn out,
it vibrates, yet again, immensely faint
“Yessss!”
in a distance that the soul knows is high
and wants to believe is distant, only distant.

by Juan Ramón Jimenéz
from The Poet & the Sea
White Pine Press 2009

Si!

… Delante, en el ocaso, el si infinito
al que nunca se llega.
…………………………… “Siiiii!”
……………………………………… Y la luz,
incolora,
se agudiza, llamándome…

… No era del mar … Llegados
a las bocas de luz que lo decían
con largor infinito,
vibra, otra vez, inmensamente débil
—¡siiiii!—,

en un lejos que el alma sabe alto
y quiere creer lejos, sólo lejos…

Martin Amis in The Guardian:

Writers of genuine originality are always divisive. Roth alienated not just the occasional reader but entire communities, reviled, first, by world Jewry, and later by world feminism. This choric hostility was in both cases essentially socio-cultural, and not literary. You can understand the historical uneasiness, but World Jewry got it wrong about Roth, a proud Jew as well as a proud American. And the feminist objection is impetuously sweeping; it detects no distance between Roth and his (often deplorable) narrators. Besides, if you outlaw misogyny as a subject, then you outlaw King Lear, and much else.

My subjective impression is that Portnoy’s Complaint is still the diamond in the crown. Here the Jewish-American Novel is narrowed down to one idea: gentile girls, shiksas (“detested things”), where ancient laws of purity come up against American womanhood, and the inevitability of material America. In Portnoy all the great themes are there (all except mortality): fathers, mothers, children, the male libido, suffering, and Israel. Roth torches this bonfire with the kind of satirical genius that comes along, if we’re lucky, perhaps once in every generation.

More here.

Daniel Kurtz-Phelan in The New York Times:

In 2010, just before Thanksgiving, American foreign-policy makers flew into a panic. The United States government had gotten word that an outfit called WikiLeaks was preparing to release an enormous cache of secret diplomatic cables, in coordination with teams of journalists from this and other newspapers. At the time, I was a policy hand in the State Department. It fell to me and my colleagues to dutifully craft apologies on behalf of our bosses, whose sensitive communications and private insults — speculation about, say, a foreign leader’s mental aptitude or mysterious wealth — were about to become public. They, meanwhile, confronted weightier concerns, scrambling to anticipate the coming fallout. Would missions and sources be compromised? Would activists be exposed to persecution? Would anyone ever talk to American officials again? Almost no one, however, anticipated what would prove to be one of the more lasting consequences of the leak: surprised admiration for American diplomats. “My personal opinion of the State Department has gone up several notches,” the British historian and journalist Timothy Garton Ash wrote. He compared one veteran ambassador’s prose to Evelyn Waugh’s, and deemed other analyses “astute,” “unsentimental” and “hilarious.” Beneath their “dandruffy” exteriors, he concluded after browsing the classified offerings, these diplomats were sharper, and funnier, than they looked.

Ronan Farrow aims to achieve a similar effect in “War on Peace.” At a time when the Trump administration has called for gutting the State Department’s budget and filled foreign-policy jobs with military officers, Farrow draws on both government experience and fresh reporting to offer a lament for the plight of America’s diplomats — and an argument for why it matters. “Classic, old-school diplomacy,” he observes, is “frustrating” and involves “a lot of jet lag.” Yet his wry voice and storytelling take work that is often grueling and dull and make it seem, if not always exciting, at least vividly human. A Foreign Service officer’s hairstyle is “diplomat’s mullet: peace in the front, war in the back”; an Afghan strongman’s choice of décor is “warlord chic,” with “leatherette La-Z-Boy recliners” and “a giant tank full of sharks.”

More here.

Charlotte Shane at Bookforum:

TAO LIN’S EIGHTH BOOK, Trip, is his best yet, and it’s all thanks to drugs. Well, perhaps not entirely thanks to drugs. With exercise comes mastery, or at least competence, and Lin has been practicing his idiosyncratic craft for over a decade. His first book was published in 2006, when he was twenty-three; improvement during the intervening years may have been inevitable. But Lin—whose authorial voice, notoriously, is so assiduously literal that it sometimes seems transcribed from a robot failing a Turing test—has never been more creative, precise, or inspired than when he details psychedelics-begotten behavior and theories. The behavior is mostly his own, while the theories are often borrowed from Terence McKenna, the late psilocybin advocate whose YouTube videos started Lin down the path to revitalization. While studying McKenna, Lin began to make radical adjustments to his daily drug routines, which in turn radically affected his mind-set.

more here.

Zoe Lescaze at The NY Times:

Humans have long trapped animals in cages, nets and snares, but the tangled webs of vanity, curiosity, cruelty and fear we cast over other creatures may be even more perilous. We see our virtues and vices reflected in animals — hardworking beavers, indolent sloths, innocent lambs, greedy vultures — through a glass darkly. But these well-worn clichés blind us to a world far more dazzling and varied, according to Lucy Cooke, the acclaimed zoology-trained author and documentary filmmaker, in her new book, “The Truth About Animals.” As she writes, “Painting the animal kingdom with our artificial ethical brush denies us the astonishing diversity of life, in all of its blood-drinking, sibling-eating, corpse-shagging glory.” (Yes, corpse shagging. The penguin portion is not for the faint of heart.)

more here.

Elaine Glaser at The Guardian:

As well as documenting personal misery, this book is a portrait of a society that has forgotten what it is for. Our economies have become “vast engines for producing nonsense”. Utopian ideals have been abandoned on all sides, replaced by praise for “hardworking families”. The rightwing injunction to “get a job!” is mirrored by the leftwing demand for “more jobs!”

Rather than directing our frustration at the system itself, we let it curdle into resentment towards workers with less bullshit jobs. Thus the hated “liberal elite” are those who get paid to indulge in such compelling and glamorous activities that many people would undertake them for free. Yet even members of that dwindling caste dutifully take on more and more paperwork, in a gesture of warped solidarity with their colleagues in admin. The problem of bullshit jobs has a lot to do with the problem of bureaucracy, the subject of Graeber’s previous book The Utopia of Rules.

more here.

Julian Baggini in the Times Literary Supplement:

Ethics today is in a curious state. There is no shortage of people telling us that Western civilization is facing a moral crisis, that the old foundation of Christianity has been removed but nothing has been put in its place. Christian writers such as Alister McGrath and Nick Spencer have warned that we’re running on the moral capital of a religion we’ve long abandoned. It’s only a matter of time before, like Wile E. Coyote, we realize we’ve run off a moral cliff, impossibly suspended in mid-air only as long as we fail to realize there’s nothing under our feet.

One supposed sign of this malaise is that scepticism about morality has never been higher. University philosophy lecturers consistently report that their new undergraduates tend to arrive assuming that all thinking people are moral relativists who believe that what’s right for some is wrong for others and that’s all there is to be said for it. Psychology has fuelled this scepticism, with researchers like Joshua Greene arguing that most moral judgements come straight from the “hot” amygdala, not the “cool” prefrontal cortex. On this account, moral principles are post-facto rationalizations of emotional reactions.

Yet for such a sickly beast, ethics is energetically at work everywhere. You may doubt the sincerity of corporate social responsibility but the very fact that every reasonably sized company feels the need to demonstrate it says something about public expectations.

More here.

Chris Lee in Ars Technica:

It was bound to happen eventually. A group of researchers that may actually be competent and well-funded is investigating alternative thrust concepts. This includes our favorite, the WTF-thrusterEM-drive, as well as something called a Mach-Effect thruster. The results, presented at Space Propulsion 2018, are pretty much as expected: a big fat meh.

The key motivation behind all of this is that rocket technology largely sucks for getting people around the Solar System. And it sucks even worse as soon as you consider the problem of interstellar travel. The result is that good people spend a lot of time eliminating even the most far-fetched ideas. The EM-drive is a case in point. It’s basically a truncated hollow copper cone that you feed electromagnetic radiation into. The radiation bounces around in the cone. And, by some physics-defying magic, unicorns materialize to push you through space.

Well, that explanation is at least as plausible as any of the others. There is no physics explaining how this could work, but some people at NASA have claimed that it does.

More here.  [Thanks to Sean Carroll.]

Justin E. H. Smith in his blog:

I was at an academic conference last week, somewhere in America, where we were invited by our hosts to place a ‘preferred pronoun’ sticker on our nametags. “If you could pick one of those up during the next break, we’d appreciate it.” The options were, ‘He’, ‘She’, ‘They’, ‘Ask Me’, and one with a blank space for a write-in. Coming from my adoptive France, I had heard of this new practice in my country of origin, but somehow I had convinced myself that it was mostly mythical. Yet there were the stickers, and there were all my fellow participants, wearing them with straight faces.

I did not pick one up. As is my practice at these events, I do not even wear the nametag that has been provided for me, so there would have been nothing to put the sticker on. But if there had been any direct and explicit pressure on me to wear one, rather than just a general announcement, I would have been constrained to explicitly refuse to do what was being asked of me. I would have been a conscientious objector.

In the future I will avoid meetings at which I know in advance, or I have a reasonable expectation, that there will be such stickers. I am strongly opposed to this convention, I think it is ridiculous and offensive, and I am only thankful that, for now, it is only a convention and not a compulsion. But the line is not so clear. It is not a compulsion for me to wear a sticker, because I am privileged and basically indifferent as to whether I ever get invited to an academic event again. The quality of my life is enhanced by not going to academic events, and reduced by going to them. If I can’t go because social pressure would require me to wear a sticker, well, tant mieux. But this is not the case for younger scholars who are precariously employed. It is in part for their sake that I feel the need to make explicit my opposition to this practice.

More here.