home.social

#polarization — Public Fediverse posts

Live and recent posts from across the Fediverse tagged #polarization, aggregated by home.social.

  1. "I am not suggesting that censorship offers any solutions, and I am not contending that everyone is equally to blame. I want to pause to acknowledge the strange new physics that is distorting how many people understand the world. The information delivered in feeds and podcasts has been torqued away from reality to seize our attention. Just as many children’s brains have been hijacked by TikTok feeds of cute cats or pimple popping, political debate is now captive to a kind of alarmism that dehumanizes by default and announces any deviation from the norm as proof of systemic collapse. Allen and his cohort would likely echo what my social-media commenters tell me each day: That there is a war happening in the United States, and that the system is irreparably broken. For a nation founded in a revolution that met tyranny with force, violence can seem far too logical in the face of such flawed conclusions.

    The truth is more complicated, and more challenging: The nation’s political machinery, upset by technological change, is strained but functioning. We must commit again to the basic national project—to disagree, even viciously, while maintaining respect for one another’s humanity and a desire for truth. We must discount much of the venom we see online, and from pandering leaders, as a distortion of reality, not a mirror. If we do not, more people will die."

    theatlantic.com/politics/2026/

    #USA #SocialMedia #Media #News #Journalism #Polarization #Algorithms #Politics #PoliticalViolence

  2. "That shift is the focus of a new preprint that Törnberg co-authored with University of Amsterdam colleague Richard Rogers. “When we talk about social media, there are certain assumptions about what it is,” said Törnberg. “It’s user-generated, and there’s a platform that organizes interaction, but the platform cannot produce content on its own. So instead the platform allows people to connect with each other, and it just provides infrastructure for that. The [terms] social network and social media is almost synonymous. Those describe pre-algorithm Twitter circa 2012 quite well.”

    Now that more and more users are disengaging and often leaving those platforms entirely, the AI bots are moving in, often at the instigation of the social media platforms themselves. “We don’t need the users anymore,” said Törnberg of the reasoning behind such decisions. “We don’t need them to generate content. We can generate our own content and we can automate the users. So there’s a splintering of what used to be social media.”

    Törnberg identified three new kinds of emerging online media platforms, starting with private or semi-private group chats like WhatsApp. “The social part has just moved into these private group chat features,” he said. Then there other protected communities like Substack, often organized around a certain influential leader, “where there are more boundaries to joining in such a way that bots doesn’t make sense. The dynamic and logic of those places are very different from social media and much more driven by parasocial relationships.”"

    arstechnica.com/science/2026/0

    #SocialMedia #EchoChambers #FilterBubbles #Polarization #Algorithms

  3. #RulesforRadicals” was written at a time of epic social upheaval in the #UnitedStates, and it was read avidly by #VietnamWar #protesters, #feminists, #civilrights #activists and warriors on #poverty. More than half a century later, a new mini-genre of “how-to” #books about #dissent and #activism has emerged, drawing lessons from past #protests for the era of “#NoKings” rallies, #BlackLivesMatter marches and the campus pro-#Palestinian #encampments.

    Coincidentally but intriguingly, three of these books were #written by #Jewish #authors who, explicitly or not, are offering advice on resistance drawing on Jewish wisdom, role models and historical precedents.

    The three books — “How to Be a Dissident” by #GalBeckerman; the forthcoming “On Courage” by #JuliaAngwin and #AmiFieldsMeyer; and “Be a Refusenik!” by #IzabellaTabarovsky — arrive at a moment of #protest fatigue and #political #polarization.

    jta.org/2026/05/03/ideas/new-b

  4. Political Violence Sees Uptick; Public Points to Polarization, Acceptance of Aggression

    Political violence is increasing in the US. Experts say polarization and acceptance of aggression are key reasons. Find out how it affects you.

    #PoliticalViolence, #USPolitics, #Polarization, #ElectionIntegrity, #PublicSafety

    newsletter.tf/us-political-vio

  5. US makes room-temperature multiferroic for low-energy computing

    Engineers at Rice University in the U.S. have developed a new room-temperature multiferroic material that shows a 10-fold…
    #NewsBeep #News #Physics #AU #Australia #low-energycomputing #magnetization #magnetoelectricity #multiferroics #Polarization #Science #silicon #strain #substrate #sustainability #us
    newsbeep.com/au/639654/

  6. US makes room-temperature multiferroic for low-energy computing

    Engineers at Rice University in the U.S. have developed a new room-temperature multiferroic material that shows a 10-fold…
    #NewsBeep #News #Physics #AU #Australia #low-energycomputing #magnetization #magnetoelectricity #multiferroics #Polarization #Science #silicon #strain #substrate #sustainability #us
    newsbeep.com/au/639654/

  7. Threats against President Trump highlight growing political violence in the U.S.

    📰 Original title: Latest attack threatening President Trump reflects rising political violence in US

    🤖 IA: It's not clickbait ✅
    👥 Usuarios: It's not clickbait ✅

    View full AI summary: killbait.com/en/threats-agains

    #politics #politicalviolence #donaldtrump #polarization

  8. General registration is now open for the II International Symposium: Discourses of #Power, #Resistance and Reaction in the Global Era. This event will take place online, from May 19th to the 21st, 2026. The purpose of the symposium is to offer an interdisciplinary and international platform for dialogue and exchange on the ideological and discursive tensions shaping today’s polarized world.

    For more information see: discourseanalysis.net/en/ii-in

    #Discourse #DiscourseStudies #DiscourseAnalysis #Polarization

  9. A yawning gulf has opened between the left & right flanks of the court, Professor Epstein said.
    
“The #polarization in American society seeps into the #Senate. It seeps into the #presidency. It is naturally going to seep into the #courts. It would be surprising to see another John Paul Stevens,” Epstein said, referring to the late justice noted for his moderation. “Partisan identity & ideology have become so intertwined.”

    #law #SCOTUS #Trump #extremism

  10. The Hemorrh Age

    We live now
    in the Hemorrh Age,

    not the age of honest wounds
    tended by trembling hands,
    not the age of scars
    that speak of healing,
    but the age of the open vein,
    the praised rupture,
    the sanctified split.

    Everything is torn
    and taught to remain torn.

    The old ligaments of neighborliness,
    frayed.
    The sinews of patience,
    snapped.
    The small capillaries of mercy
    burst one by one
    beneath the pressure
    of opinion, spectacle, grievance, noise.

    We are leaking.

    Trust runs into the street.
    Language pools beneath the door.
    Truth is carried away
    on a thousand little red channels
    no one bothers to close.

    And everywhere
    the merchants of division
    move among us
    with clean white gloves,
    smiling,
    holding their polished instruments,
    whispering that this incision
    is necessary,
    that this cut is clarity,
    that this tearing apart
    is what it means
    to be awake.

    They call hemorrhage conviction.
    They call hatred discernment.
    They call contempt wisdom.
    They call cruelty a kind
    of courage.

    And we, half-dizzy,
    half-devout,
    watching our common life
    soak through the bandages,
    mistake the spreading stain
    for a flag.

    Even the holy things
    are not spared.

    Altars become platforms.
    Prayer becomes signal.
    Prophets are drafted
    into factions.
    The wounds of the world
    are trimmed and displayed
    for effect.
    Compassion is made to perform
    beneath bright lights
    until it no longer knows
    how to touch a body
    without first finding a camera.

    How strange,
    that a people can perish
    not by a single blow
    but by endless bleeding.
    Not by invasion
    but by laceration from within.
    Not by silence
    but by the shriek
    of everyone opening
    everyone else.

    We have become
    students of severing.
    Apprentices of fracture.
    Curators of the unsutured.

    Every difference
    a knife.
    Every slight
    a blade returned.
    Every memory
    reopened.
    Every sorrow
    milked for more.

    No one asks now
    how to heal a wound.
    Only how to name it,
    frame it,
    share it,
    weaponize it,
    keep it wet.

    And still—
    still somewhere beneath
    this failing body,
    beneath the fevered rhetoric,
    beneath the hot blush
    of tribal wrath,
    some quiet stubborn tissue
    tries to knit.

    A hand reaches.
    A voice lowers.
    A stranger refuses
    the sweet narcotic
    of contempt.
    Someone binds what they did not tear.
    Someone stays near
    what others abandoned.
    Someone chooses
    not victory,
    but mending.

    Perhaps that is how
    an age survives itself.

    Not by denying blood.
    Not by pretending
    there was never injury.
    But by kneeling at last
    beside the opened body
    and saying:

    Enough.

    Let the wound close.
    Let the pressure ease.
    Let mercy return
    to the smallest vessels.
    Let the torn muscle remember
    its first design.
    Let us become again
    something more than our bleeding.

    For if this is
    the Hemorrh Age,
    then let there also rise
    against it
    the tender and stubborn saints
    of suturing,

    the keepers of bandages,
    the washers of torn flesh,
    the enemies of spectacle,
    the last believers
    that a body
    still can heal.

    #civicDecay #collectiveTrauma #commonGood #cultureOfContempt #division #HemorrhAge #mediaManipulation #mending #Mercy #neighborliness #outrageCulture #peaceWitness #Poetry #polarization #politicalSpectacle #propheticArt #publicDiscourse #Reconciliation #SocialFragmentation #socialHealing #SpiritualReflection #Tribalism #woundedSociety
  11. Autocephaly and the Age of Polarization

    Autocephaly means “self-headed.” In the life of the church, it refers to a body that governs itself rather than being ruled by a higher authority elsewhere. In its proper sense, it is not necessarily rebellion, and it is not the same thing as schism. It can be a way of honoring local history, local language, local suffering, and local responsibility. A people may need space to pray, discern, and order their common life without being managed by a distant power that neither knows them nor loves them well.

    There is something good in that. Not all unity is holy. Sometimes what is called unity is actually domination. Sometimes centralization silences the weak, flattens the local, and blesses the priorities of empire. In such cases, a measure of self-rule can be a form of dignity. It can protect a people from being absorbed into somebody else’s story. It can allow faith to be spoken in a native tongue, clothed in local memory, and embodied in forms that are truly rooted rather than imposed.

    Yet every good thing casts a shadow.

    What begins as the rightful desire not to be ruled can become the unrighteous desire not to be related. What begins as self-governance can harden into self-enclosure. In a polarized age, that danger is everywhere.

    Communities wounded by neglect or control often retreat into their own certainty. They do not merely seek freedom; they begin to seek purity. They define themselves not only by what they are, but by what they are not. They become “self-headed” in the deepest and most dangerous sense: accountable to no one beyond themselves.

    Then autocephaly becomes more than a church structure. It becomes a spiritual condition.

    We can see this far beyond ecclesial debates. Political tribes become autocephalous. Media ecosystems become autocephalous. Families, congregations, movements, and even individuals become autocephalous. Each claims its own authority, its own facts, its own moral universe. Each comes to believe that dependence is weakness and mutual correction is betrayal. The result is not healthy difference within a living body, but a scattering of severed heads, each insisting it alone can see.

    Modern polarization feeds on this instinct. People feel unheard, misrepresented, and overruled, so they gather with those who share their grievance. At first this may be a necessary act of survival. There are times when people truly must withdraw from abusive systems.

    There are times when a community must say, “We cannot remain under this yoke.” But the wound that gives birth to separation can also become the justification for permanent alienation. The memory of harm becomes the theology of exclusion.

    And here the church must be careful.

    Christian faith is not a celebration of either domination or isolation. The body of Christ is neither a machine controlled from above nor a pile of disconnected parts. It is one body with many members, each distinct, each necessary, none sufficient unto itself. The hand is not the foot. The eye is not the ear.

    Yet none can say to another, “I have no need of you.” The danger of our age is that we have become very skilled at saying precisely that.

    So, the question is not whether local integrity matters. It does. The question is whether local integrity can remain joined to communion.

    Can a people govern themselves without idolizing themselves? Can they protect their own life without imagining that all truth now resides only within their border? Can they remember that self-rule is a discipline of responsibility, not a license for self-absolutizing?

    These are not only questions for Orthodox churches. They are questions for all of us. They are questions for congregations that split, for denominations that fracture, for parties that demonize, for citizens who sort themselves into mutually hostile worlds. They are questions for every person tempted to confuse conviction with closure.

    Perhaps the deepest Christian word against polarization is not uniformity but communion.

    Communion does not erase difference. It does not demand silence about injustice. It does not ask the wounded to pretend they have not been wounded. But it does insist that the goal of freedom is not merely separation. The goal is reconciled life. The goal is a community in which truth can be spoken, dignity honored, wrongs confessed, and relationship restored without coercion.

    In that sense, the lesson of autocephaly for our time is double-edged. It reminds us that no community should be crushed under distant domination. But it also warns us that self-governance without shared life can become another captivity. We may escape the tyranny of others only to enthrone the tyranny of ourselves.

    The church, if it is to speak faithfully in an age of polarization, must resist both temptations. It must reject false unity built on control, and false freedom built on estrangement. It must become a people capable of bearing difference without making an idol of division. It must learn again how to be many members with one life.

    For the great question of our age is not simply who will rule. It is whether we still desire to belong to one another at all.

    #autocephaly #bodyOfChrist #ChristianUnity #ChurchDivision #churchUnity #EasternOrthodoxy #ecclesiology #localChurch #modernChristianity #NationalismAndReligion #OrthodoxChurch #polarization #Reconciliation #Schism #SpiritualReflection
  12. #usa #israel #iran : #warofaggression / #domesticpolicy

    „[P]roblems that are … existential for Israel — its growing international #isolation, its #braindrain & economic woes, its tremendous domestic #polarization, its creeping annexation of the West#Bank, #Gaza’s instability, #Hamas’s future — all sit on the back burner. Victory over Iran would no doubt transform the country’s security prospects (…) But it will not be enough to mend the country’s deepest #divisions.“

    foreignaffairs.com/israel/isra

  13. Apply now for the hybrid PhD course "Far-Right Publics and Anti-Migrant Mobilisation" (7,5 ECTS), 4 May–30 August 2026, University of Gothenburg.

    Free of charge – even accommodation is provide for free during the on-campus week in Gothenburg 25-29 May.

    gu.se/en/socav/far-right-publi

    #phdcourse #doctoralcourse #migration #farright #mobilisation #radicalisation #polarization #EthnicNationalism #gbgftw

  14. #violence against reporters!
    by Eric Berger, the Guardian

    “The US #press have suffered about as many #assaults this year as in the previous three years combined, the Freedom of the Press Foundation states in a new report.”

    “When the president models ridicule and #delegitimization it signals to [his] supporters that journalists are fair #targets,” said Lars Willnat, a Syracuse University professor who has studied the impact of political #polarization on perceptions of #journalists. “That shift matters because violence becomes easier to justify once journalists are seen as political #combatants rather than neutral observers.”
    #Journalistsafety

  15. Attempting to decode the dynamics of the 21st century.

    It has been a while that I am sharing curated content with friends on WhatsApp. I am moving here to open my feed to a wider audience.

    My approach: observing the world as it is and is likely to be, rather than how it "should be."

    Most posts in English, some in French.

    Focus areas: #geopolitics #culturewar #Polarization #europe #EU #StrategicAutonomy #tech #AI #miltech #Sociology

  16. Recommended book: The Disunited States - Threats of Secession in Red and Blue America and Why They Won't Work. Ryan D. Griffiths. Examines the growing interest in a national divorce between #RedState America and #BlueState #America. Discusses how current #polarization in America is a problem, but it is one that needs to be worked out through dialogue rather than a bloody #civilwar. Brings expert analysis on the topic of #secession, & how it works #globally #democracy global.oup.com/academic/produc

  17. Concordia University: New Concordia research shows social networks are vulnerable to relatively simple AI manipulation and polarization. “It seems that no matter the topic of conversation, online opinion around it will be split into two seemingly irreconcilable camps. That’s largely a result of these platforms’ design, as the algorithms driving them direct users to like-minded peers. This […]

    https://rbfirehose.com/2025/04/17/concordia-university-new-concordia-research-shows-social-networks-are-vulnerable-to-relatively-simple-ai-manipulation-and-polarization/

  18. New paper out.

    What happens when you make a model that includes realistic details about how people discuss ideas and decide how to act upon them? The answer is that with just 3 such elements of realism, one can mathematically explain the emergence of commonly observed situations, such as reaching a consensus and exchanging opinions, but also the separation of ideologies and the appearance of stable polarization. Not only this, but one can also account for phenomena such as peer pressure, cognitive dissonance, tactical voting and toxic idealism ( @benroyce I told you I was going to do it 😀 ) and prove how they affect the final state of the system.

    sciencedirect.com/science/arti

    #physics #mathematics #networks #bifurcations #opiniondynamics #consensus #polarization #voting #peerpressure #cognitivedissonance #tacticalvoting #toxicidealism

  19. Arıkan's new solution was to create near-perfect channels from ordinary channels by a process he called “#channel #polarization.”

    Noise would be transferred from one channel to a copy of the same channel to create a cleaner copy and a dirtier one.

    After a recursive series of such steps, two sets of channels emerge, one set being extremely noisy, the other being almost noise-free.

    The channels that are scrubbed of noise, in theory, can attain the Shannon limit.

    He dubbed his solution #polar #codes.
    It's as if the noise was banished to the North Pole, allowing for pristine communications at the South Pole.

    After this discovery, Arıkan spent two more years refining the details.
    He had read that before Shannon released his famous paper on information theory, his supervisor at Bell Labs would pop by and ask if the researcher had anything new.
    “Shannon never mentioned information theory,” says Arıkan with a laugh.
    “He kept his work undercover. He didn't disclose it.”

    That was also Arıkan's MO. “I had the luxury of knowing that no other person in the world was working on this problem,” Arıkan says, “because it was not a fashionable subject.”

    In 2008, three years after his eureka moment, Arıkan finally presented his work.

    He had understood its importance all along. Over the years, whenever he traveled, he would leave his unpublished manuscript in two envelopes addressed to “top colleagues whom I trusted,” with the order to mail them “if I don't come back.”

    In 2009 he published his definitive paper in the field's top journal, IEEE Transactions on Information Theory.

    It didn't exactly make him a household name, but within the small community of information theorists, polar codes were a sensation.

    Arıkan traveled to the US to give a series of lectures. (You can see them on YouTube; they are not for the mathematically fainthearted. The students look a bit bored.)

    Arıkan was justifiably proud of his accomplishment, but he didn't think of polar codes as something with practical value.

    It was a theoretical solution that, even if implemented, seemed unlikely to rival the error-correction codes already in place.

    He didn't even bother to get a patent.

    #channel #capacity #Shannon #limit #correcting #errors #Bilkent #University #eureka #accurately #redundancy #channel #coding #problem

  20. Arıkan's new solution was to create near-perfect channels from ordinary channels by a process he called “#channel #polarization.”

    Noise would be transferred from one channel to a copy of the same channel to create a cleaner copy and a dirtier one.

    After a recursive series of such steps, two sets of channels emerge, one set being extremely noisy, the other being almost noise-free.

    The channels that are scrubbed of noise, in theory, can attain the Shannon limit.

    He dubbed his solution #polar #codes.
    It's as if the noise was banished to the North Pole, allowing for pristine communications at the South Pole.

    After this discovery, Arıkan spent two more years refining the details.
    He had read that before Shannon released his famous paper on information theory, his supervisor at Bell Labs would pop by and ask if the researcher had anything new.
    “Shannon never mentioned information theory,” says Arıkan with a laugh.
    “He kept his work undercover. He didn't disclose it.”

    That was also Arıkan's MO. “I had the luxury of knowing that no other person in the world was working on this problem,” Arıkan says, “because it was not a fashionable subject.”

    In 2008, three years after his eureka moment, Arıkan finally presented his work.

    He had understood its importance all along. Over the years, whenever he traveled, he would leave his unpublished manuscript in two envelopes addressed to “top colleagues whom I trusted,” with the order to mail them “if I don't come back.”

    In 2009 he published his definitive paper in the field's top journal, IEEE Transactions on Information Theory.

    It didn't exactly make him a household name, but within the small community of information theorists, polar codes were a sensation.

    Arıkan traveled to the US to give a series of lectures. (You can see them on YouTube; they are not for the mathematically fainthearted. The students look a bit bored.)

    Arıkan was justifiably proud of his accomplishment, but he didn't think of polar codes as something with practical value.

    It was a theoretical solution that, even if implemented, seemed unlikely to rival the error-correction codes already in place.

    He didn't even bother to get a patent.

    #channel #capacity #Shannon #limit #correcting #errors #Bilkent #University #eureka #accurately #redundancy #channel #coding #problem

  21. Arıkan's new solution was to create near-perfect channels from ordinary channels by a process he called “#channel #polarization.”

    Noise would be transferred from one channel to a copy of the same channel to create a cleaner copy and a dirtier one.

    After a recursive series of such steps, two sets of channels emerge, one set being extremely noisy, the other being almost noise-free.

    The channels that are scrubbed of noise, in theory, can attain the Shannon limit.

    He dubbed his solution #polar #codes.
    It's as if the noise was banished to the North Pole, allowing for pristine communications at the South Pole.

    After this discovery, Arıkan spent two more years refining the details.
    He had read that before Shannon released his famous paper on information theory, his supervisor at Bell Labs would pop by and ask if the researcher had anything new.
    “Shannon never mentioned information theory,” says Arıkan with a laugh.
    “He kept his work undercover. He didn't disclose it.”

    That was also Arıkan's MO. “I had the luxury of knowing that no other person in the world was working on this problem,” Arıkan says, “because it was not a fashionable subject.”

    In 2008, three years after his eureka moment, Arıkan finally presented his work.

    He had understood its importance all along. Over the years, whenever he traveled, he would leave his unpublished manuscript in two envelopes addressed to “top colleagues whom I trusted,” with the order to mail them “if I don't come back.”

    In 2009 he published his definitive paper in the field's top journal, IEEE Transactions on Information Theory.

    It didn't exactly make him a household name, but within the small community of information theorists, polar codes were a sensation.

    Arıkan traveled to the US to give a series of lectures. (You can see them on YouTube; they are not for the mathematically fainthearted. The students look a bit bored.)

    Arıkan was justifiably proud of his accomplishment, but he didn't think of polar codes as something with practical value.

    It was a theoretical solution that, even if implemented, seemed unlikely to rival the error-correction codes already in place.

    He didn't even bother to get a patent.

    #channel #capacity #Shannon #limit #correcting #errors #Bilkent #University #eureka #accurately #redundancy #channel #coding #problem

  22. Arıkan's new solution was to create near-perfect channels from ordinary channels by a process he called “#channel #polarization.”

    Noise would be transferred from one channel to a copy of the same channel to create a cleaner copy and a dirtier one.

    After a recursive series of such steps, two sets of channels emerge, one set being extremely noisy, the other being almost noise-free.

    The channels that are scrubbed of noise, in theory, can attain the Shannon limit.

    He dubbed his solution #polar #codes.
    It's as if the noise was banished to the North Pole, allowing for pristine communications at the South Pole.

    After this discovery, Arıkan spent two more years refining the details.
    He had read that before Shannon released his famous paper on information theory, his supervisor at Bell Labs would pop by and ask if the researcher had anything new.
    “Shannon never mentioned information theory,” says Arıkan with a laugh.
    “He kept his work undercover. He didn't disclose it.”

    That was also Arıkan's MO. “I had the luxury of knowing that no other person in the world was working on this problem,” Arıkan says, “because it was not a fashionable subject.”

    In 2008, three years after his eureka moment, Arıkan finally presented his work.

    He had understood its importance all along. Over the years, whenever he traveled, he would leave his unpublished manuscript in two envelopes addressed to “top colleagues whom I trusted,” with the order to mail them “if I don't come back.”

    In 2009 he published his definitive paper in the field's top journal, IEEE Transactions on Information Theory.

    It didn't exactly make him a household name, but within the small community of information theorists, polar codes were a sensation.

    Arıkan traveled to the US to give a series of lectures. (You can see them on YouTube; they are not for the mathematically fainthearted. The students look a bit bored.)

    Arıkan was justifiably proud of his accomplishment, but he didn't think of polar codes as something with practical value.

    It was a theoretical solution that, even if implemented, seemed unlikely to rival the error-correction codes already in place.

    He didn't even bother to get a patent.

    #channel #capacity #Shannon #limit #correcting #errors #Bilkent #University #eureka #accurately #redundancy #channel #coding #problem

  23. Arıkan's new solution was to create near-perfect channels from ordinary channels by a process he called “#channel #polarization.”

    Noise would be transferred from one channel to a copy of the same channel to create a cleaner copy and a dirtier one.

    After a recursive series of such steps, two sets of channels emerge, one set being extremely noisy, the other being almost noise-free.

    The channels that are scrubbed of noise, in theory, can attain the Shannon limit.

    He dubbed his solution #polar #codes.
    It's as if the noise was banished to the North Pole, allowing for pristine communications at the South Pole.

    After this discovery, Arıkan spent two more years refining the details.
    He had read that before Shannon released his famous paper on information theory, his supervisor at Bell Labs would pop by and ask if the researcher had anything new.
    “Shannon never mentioned information theory,” says Arıkan with a laugh.
    “He kept his work undercover. He didn't disclose it.”

    That was also Arıkan's MO. “I had the luxury of knowing that no other person in the world was working on this problem,” Arıkan says, “because it was not a fashionable subject.”

    In 2008, three years after his eureka moment, Arıkan finally presented his work.

    He had understood its importance all along. Over the years, whenever he traveled, he would leave his unpublished manuscript in two envelopes addressed to “top colleagues whom I trusted,” with the order to mail them “if I don't come back.”

    In 2009 he published his definitive paper in the field's top journal, IEEE Transactions on Information Theory.

    It didn't exactly make him a household name, but within the small community of information theorists, polar codes were a sensation.

    Arıkan traveled to the US to give a series of lectures. (You can see them on YouTube; they are not for the mathematically fainthearted. The students look a bit bored.)

    Arıkan was justifiably proud of his accomplishment, but he didn't think of polar codes as something with practical value.

    It was a theoretical solution that, even if implemented, seemed unlikely to rival the error-correction codes already in place.

    He didn't even bother to get a patent.

    #channel #capacity #Shannon #limit #correcting #errors #Bilkent #University #eureka #accurately #redundancy #channel #coding #problem

  24. “The evolution of cooperation required out-group #hatred, which is really sad,” said Nicholas Christakis, a Yale sociologist

    This is just as true on today’s political stage. There are two major parties, and their contests are viewed as zero-sum outcomes.

    #Win or #lose.

    The presidency is the ultimate example: There are no consolation prizes for the loser.

    No researcher argues that human nature is the sole, or even the primary, cause of today’s #polarization.

    But savvy political operatives can exploit, leverage and encourage it.
    And those operatives are learning from their triumphs in #divide-and-#conquer politics.

    Here’s where psychology gives way to political science.

    The American political system may cultivate “out-group” hatred, as academics put it.

    🔹One of the scarce resources in this country is political #power at the highest levels of government. 🔹

    The country has no parliamentary system in which multiple parties form governing #coalitions.

    Add to this fact 🔹#redistricting that ensures there are fewer truly #competitive congressional races.🔹

    The two parties have inexorably moved further apart ideologically, and leaders are more likely to be punished — “#primaried” — if they reach across the aisle.

    And because many more districts are now 🔹deeply red or blue, 🔹rather than a mix of constituencies, House members have fewer reasons to adopt moderate positions.

    washingtonpost.com/science/202

  25. CW: twitter

    In summary, the key #impact is that the #study finds evidence that #Twitter's #algorithm may contribute to increased affective #polarization and amplification of emotionally charged content by selectively highlighting divisive tweets, even though it optimizes for user engagement. This highlights the need to better incorporate #user stated preferences into #algorithms to reduce #amplification of #problematic #content.

    arxiv.org/abs/2305.16941

  26. The 2023 #EdelmanTrustBarometer is the firm’s 23rd annual #trust and #credibility survey. The 2023 Edelman Trust Barometer online survey sampled more than 32,000 respondents across 28 countries. A lack of faith in societal institutions triggered by #EconomicAnxiety, #disinformation, mass #ClassDivide and a #failure of #leadership has brought us to where we are today – deeply and dangerously #polarized. edelman.be/sites/g/files/aatus #poverty #ecomony #government #politics #society #media #polarization

  27. The 2023 #EdelmanTrustBarometer is the firm’s 23rd annual #trust and #credibility survey. The 2023 Edelman Trust Barometer online survey sampled more than 32,000 respondents across 28 countries. A lack of faith in societal institutions triggered by #EconomicAnxiety, #disinformation, mass #ClassDivide and a #failure of #leadership has brought us to where we are today – deeply and dangerously #polarized. edelman.be/sites/g/files/aatus #poverty #ecomony #government #politics #society #media #polarization

  28. The 2023 #EdelmanTrustBarometer is the firm’s 23rd annual #trust and #credibility survey. The 2023 Edelman Trust Barometer online survey sampled more than 32,000 respondents across 28 countries. A lack of faith in societal institutions triggered by #EconomicAnxiety, #disinformation, mass #ClassDivide and a #failure of #leadership has brought us to where we are today – deeply and dangerously #polarized. edelman.be/sites/g/files/aatus #poverty #ecomony #government #politics #society #media #polarization