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Stephan Lewandowsky

@lewan.uk
21K followers 2K following 4.9K posts

Professor of Cognitive Science, University of Bristol. Homepage: www.lewan.uk

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Reposted by Stephan Lewandowsky
Thomas Zimmer @thomaszimmer.bsky.social · 24/09/2026
Onward. Forward. With your help. Happy birthday to Democracy Americana! One year ago, I started this experiment. To keep it going, I need your support. This is my once-annual pitch to everyone reading. I hope you’ll indulge me:
steady.page
Onward. Forward. With your help.
Happy birthday to Democracy Americana! One year ago, I started this experiment. To keep it going, I need your support.
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TeaP 2027 in Mannheim @teap2027.bsky.social · 23/09/2026
📣 Save the Date! #TeaP2027 is coming to Mannheim March 21st to March 24th 2027! Abstract submissions will open October 1st 🥳 For more details, check out our website: www.uni-mannheim.de/teap-2027/
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Timothy Caulfield @caulfieldtim.bsky.social · 23/09/2026
Conspiracy Believers Often Hold Two Beliefs That Can’t Both Be True studyfinds.com/conspiracy-b... From study: "...the strongest conspiracy believers showing a 91% probability of being incoherent" (by @lewan.uk et al.)
studyfinds.com
Conspiracy Believers Are 91% Likely To Hold Incoherent Beliefs, Study Finds
A new study finds people at the extreme end of conspiracy thinking have a 91% predicted chance of holding incompatible beliefs.
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Mind, Brain and Behavior Research Center - CIMCYC @cimcyc.bsky.social · 23/09/2026
A huge thank you to our keynote speakers @lewan.uk, @lkfazio.bsky.social, @helenamatute.bsky.social, Jon Roozenbeek, @goripaula.bsky.social (@edmo-eu.bsky.social), Pablo Hernández (@maldita.es) and to all participating doctoral students for their insightful questions and contributions! 👏
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The Coalition for Independent Technology Research @thecoalition.bsky.social · 21/09/2026
@natematias.bsky.social, @rebekahtromble.bsky.social, and Sarah T. Roberts write in Science about how restrictions on researchers’ movement threaten free inquiry. Read: www.science.org/doi/10.1126/...
science.org
Free inquiry depends on freedom of movement
Starting in May 2025, the US government implemented an immigration policy that targeted noncitizen researchers for visa denials, visa revocations, detention, and deportation on the basis of the topics...
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Renee DiResta @noupside.bsky.social · 21/09/2026
The ceNsOrShiP iNdUstrIaL cOmpleX hoaxers are starting to go after AI evaluators using the same playbook that took down social media research. It worked for them last time. No consequences for lying. Shellenberger, Schmitt both starting up. Smears & subpoenas from the lie machine commencing. Watch.
Anthropic's CEO is pushing America's Al labs to embed a leftist alignment apparatus.
But he's deeply intertwined with this ecosystem, its funding, its people, and the supposed experts shaping the media coverage.
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Eric Sch...
@Eric_Sch... •7h
I want the grant records.
The stock transfers.
The board ties.
The conflict policies.
The journalism disclosures.
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They will all be hearing from me soon.
No self-appointed leftist cartel gets to decide America's future.
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Abdul El-Sayed @abdulelsayed.bsky.social · 18/09/2026
Mike Rogers couldn't be bothered to show up to the debate, but here's what I would have asked him if he wasn't such a coward:
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Marc Elias @marcelias.bsky.social · 20/09/2026
I would never eat dinner with Donald Trump. I would never clap or laugh at his jokes. I would never shake his hand. When he attacks me, I wear his scorn as a badge of honor. I founded Democracy Docket to never back down or obey. Subscribe now. demdock.com/4w6emld
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Stephan Lewandowsky @lewan.uk · 20/09/2026
Can people hold incompatible conspiracy beliefs at once—for example, that Princess Diana was murdered and faked her death? A new paper authored by my team, with Alessandro Miani in the lead, finds the answer is often yes, but the key is measuring incoherence properly. doi.org/10.1093/pnas... 🧵 1/9
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Leonid Schneider @forbetterscience.bsky.social · 15/09/2026
Those annoyed by my long introduction to the Cofnas case can use this link to go straight to the guest post by @ptrbck.bsky.social : forbetterscience.com/2026/09/15/n...
forbetterscience.com
Nathan Cofnas’s “race realism” is pseudoscience
“If there’s someone having a negative impact on science, it is Cofnas, not his critics. ” – Pieter Beck
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Tony Yates @t0nyyates.bsky.social · 16/09/2026
😂 the Trump White House *are* the radical right. It is a personalist authoritarian regime. In their strategy documents they say they seek to pursue ethnonationism in Europe. They are not going to help us!
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Stephan Lewandowsky @lewan.uk · 10/09/2026
And my keynote at 12
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Stephan Lewandowsky @lewan.uk · 10/09/2026
Coming up in Plenary 1 at 10:15.
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Stephan Lewandowsky @lewan.uk · 09/09/2026
If you are in Luxembourg at DGP, this panel starts on a few minutes in Plenary 1.
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Paul Bernal @paulbernal.bsky.social · 07/09/2026
Opposing fascism, supporting the RNLI, upholding the rule of law. Not difficult.
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Mike Galsworthy @mikegalsworthy.bsky.social · 08/09/2026
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Otto English @ottoenglish.bsky.social · 09/09/2026
The balaclava blackshirted thugs are a result of a decade of politicians, tabloids and the broadcast media telling racists they have "legitimate concerns." The normalisation of actual fascism rhetoric and action has led to this and is a far greater "legitimate concern" than any migrant on a boat.
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HOPE not hate @hopenothate.org.uk · 08/09/2026
Did Kent Police ignore Dover blockade 999 call? We can reveal the story that undermines the public statement of Kent Police. 🧵
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Jessica Valenti @jessicavalenti.bsky.social · 08/09/2026
This isn’t run-of-the-mill conservative outrage or harmless thought exercises. It’s a political trial balloon. Conservatives are looking for any reason at all to broadly subjugate women, and they see the furor around Clancy’s case as their best opportunity in years.
jessica.substack.com
The Real Stakes of the Lindsay Clancy Gender War
Conservatives are using a Massachusetts murder case to argue for an end to women’s voting rights
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Michael E. Mann @michaelemann.bsky.social · 07/09/2026
Please listen to this far-ranging conversation about my book (with @peterhotezmdphd.bsky.social) #ScienceUnderSiege with Edwin @eisendrath.net of #WCPT Radio Chicago aka @heartlandsignal.com: omny.fm/shows/democr...
omny.fm
WCPT 820 Interview: Dr. Michael Mann - It's the Democracy, Stupid with Edwin Eisendrath (formerly The Big Picture)
Edwin Eisendrath is joined by Michael Mann, climatologist, geophysicist, and author of “Science Under Siege: How to Fight the Five Most Powerful Forces that Threaten Our World.” The discussion examin...
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Astra Taylor @astra.bsky.social · 06/09/2026
Unfortunately even more relevant given AfD's victory today. Here's a fresh gift link: as.ft.com/r/68f961b0-b...
as.ft.com
Rerun or sequel? Naomi Klein and Astra Taylor on end times fascism
How nationalists, theocrats and tech titans turned their backs on a shared future
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Aaron Rupar @atrupar.com · 05/09/2026
"Republicans understand that people aren’t going to read the documents behind their conspiracy theories. The truth is hard to understand and often involves complexity and nuance. They’re able to win the narrative war that way, & it’s having real consequences on people’s lives." — @ninajankowicz.com
publicnotice.co
Nina Jankowicz on the golden age of disinformation
“Memory-holing is core to all of the narrative coups Republicans are achieving right now.”
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Tressie McMillan Cottom @tressiemcphd.bsky.social · 02/09/2026
Again. Again. It was just the usual white supremecist double standard the first dozen times. After Arday‘s sad, avoidable tragedy it feels like more than the usual distraction. They want to gaslight us to death. www.dukechronicle.com/article/duke...
dukechronicle.com
‘Insane data’: Duke professor Dan Ariely accused of additional research fraud
New evidence released Monday shows that Dan Ariely, professor of business administration in the Fuqua School of Business, likely tampered with or fabricated data in an influential research paper from ...
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Lena Hahn @lenahahn.bsky.social · 01/09/2026
Excited and looking forward to the panel discussion with @kaisassenberg.bsky.social @evalottabrakemeier.bsky.social @rimamrahal.bsky.social @lewan.uk & G.-J. Hogrefe on populist politics as a threat to academic freedom at #DGPs2026 📆Wednesday, 9 September, 🕧1:45PM, 📍 Room Plenary 1 #psychscisky
Populist politics as a threat to academic freedom - Where do we stand? What? Panel discussion, When? Wednesday, 9 September 2026, 1:45-2:45pm, Where? Room Plenary 1 at the 54. DGPs Congress in Luxemburg. Below this information are pictures of Eva-Lotta Brakemeier, G.-Jürgen Hogrefe, Lena Hahn, Stephan Lewandowsky, Rima Maria Rahal and Kai Sassenberg.
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Data Colada @datacolada.bsky.social · 31/08/2026
An influential paper by Ariely & Wertenbroch (2002) reported two studies with tampered data. Post 1 of 2. datacolada.org/138
datacolada.org
[138] Artificial Deadlines (Part 1): Evidence of Fraud in an Influential Study About Procrastination
A new paper in Psychological Science (.htm) reports a failure to replicate Study 2 of Ariely and Wertenbroch’s influential article entitled, “Procrastination, Deadlines, and Performance: Self-Contr…
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Adam Rutherford @adamrutherford.bsky.social · 28/08/2026
I've been revisiting my 2021 book How to Argue With a Racist, in light of the Cofnas situation - i didn't name him or the scientifically illiterati with who he breaks bread. But I thought these sections from the end might be of interest.
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Mayor of London, Sadiq Khan @london.gov.uk · 28/08/2026
Some of London’s detractors are determined to paint a picture of a city becoming less safe. The facts tell a different story. These crimes are down ⬇️
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George Monbiot @georgemonbiot.bsky.social · 27/08/2026
People can "just adapt" to a changing climate, a thousand rightwing voices keep telling us. Either they lack imagination or they don't care. Try "adapting" to this. www.theguardian.com/world/2026/a...
theguardian.com
Nepal flash flood: more than 1,500 missing, mostly tourists, after disaster kills at least 165 at Tibet border
Entire populated areas swept away after glacial collapse causes catastrophic flood in mountainous region popular with trekkers and pilgrims
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Russ Jones @russincheshire.bsky.social · 25/08/2026
When you really think about it, there are only 2 universally loved people. David Attenborough Dolly Parton And we lost one today. It's kinda heartbreaking.
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Adam Serwer @adamserwer.bsky.social · 21/08/2026
Some of the richest people in the world want a racial caste system, and they want scholarly backing for that in the form of racist pseudoscience. And a lot of ostensibly non racist people quietly agree, and don’t like to see those who peddle that pseudoscience excluded from mainstream institutions.
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BladeoftheSun @bladeofthes.bsky.social · 22/08/2026
We have got Genocide and a world being destroyed by the Greed of the richest and all the Billionaire Media can do is tell lies about a Black Professor and demonise a Black Woman who might come to live in the UK. They truly are racist scum.
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Peter Jukes @peterjukes.bsky.social · 20/08/2026
I have a strong sense that, the more people dig, the more innocent Jason Arday will become. Which just makes his death, and the circumstances leading up to it, more awful
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Stephan Lewandowsky @lewan.uk · 18/08/2026
Excellent piece.
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Alan Jagolinzer @jagolinzer.bsky.social · 16/08/2026
One goal of pile-on rage-bait campaigns is to hijack agenda. This tactic short-circuits attention & deviates it away from strategic initiatives that likely do not align with the incentives or objectives of rage-bait campaign agitators. I discussed this in @liambyrnemp.bsky.social’s book.
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George Monbiot @georgemonbiot.bsky.social · 15/08/2026
We need to show rightwing newspapers that actions have consequences. Add your name: goodlawproject.org/s/abb8a1
goodlawproject.org
Jason Arday: Demand a public inquiry now | Good Law Project
Commission an immediate public inquiry into how to ensure a responsible press given its contribution to Dr Arday’s tragic death.
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The Guardian @theguardian.com · 13/08/2026
Britain's scorched fields mean a food crisis – and the government is ignoring the one measure that would help | George Monbiot
theguardian.com
Britain's scorched fields mean a food crisis – and the government is ignoring the one measure that would help | George Monbiot
This summer’s extreme weather and wars in Iran and Ukraine have made our need for food stockpiles more pressing than ever, says Guardian columnist George Monbiot
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Zuri Linetsky @zurilinetsky.bsky.social · 11/08/2026
An excellent after action review of the US war on Iran. And what an utter failure all the key US players knew it would be. Good thing Trump doesn’t read and cannot stay awake to care about any of this. And now we have a military devoid of fire power. www.amerikanets.com/p/they-saw-i...
amerikanets.com
They Saw it Coming
How American military planners anticipated failure in Iran
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Joe Bak-Coleman @jbakcoleman.bsky.social · 11/08/2026
Well, this motivated me to polish off my "hell-freezes-over" blog post where I: 1) Put together a reproducibility pipeline/stack 2) For both R (oof) and python (easy) 3) Provide a git repository 4) Discuss how to prereg with it joebakcoleman.com/blog/2026-08...
joebakcoleman.com
Reproducibility Now! · Joe Bak-Coleman
A bottom-up stack with Nix, uv, and renv
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Mayor of London, Sadiq Khan @london.gov.uk · 11/08/2026
It's now been confirmed that this summer will be the hottest on record. For those opposing bold action on the climate crisis - you're not just putting lives and the planet at risk today, but dooming future generations.
theguardian.com
This burning summer is the proof: the voices of climate denial aren’t just delusional, they’re deadly | Sadiq Khan
Look at our blazing forests and parched cities. Green policies aren’t a ‘luxury’, and we can’t burn more oil and gas. People need the truth, says London mayor Sadiq Khan
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filyooz.bsky.social @filyooz.bsky.social · 11/08/2026
www.linkedin.com/posts/farruk...
linkedin.com
Amy Goodman, "Your response to President Trump saying you hate Jewish people, the National Republican Senatorial Committee using your full name — of course, reminiscent of Barack Hussein Obama — ...
Amy Goodman, "Your response to President Trump saying you hate Jewish people, the National Republican Senatorial Committee using your full name — of course, reminiscent of Barack Hussein Obama — you e...
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gjabberbox.bsky.social @gjabberbox.bsky.social · 09/08/2026
“MAGA’s crusade against Anthony Fauci has surprisingly little to do with Fauci,” Peter Wehner argues: www.theatlantic.com/ideas/2026/0...
theatlantic.com
Why MAGA Is So Obsessed With Fauci
In the aftermath of pandemics, people either try to forget them or find others to blame for them.
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Alan Jagolinzer @jagolinzer.bsky.social · 08/08/2026
Thorough discussion of the genesis and aggressiveness of an ongoing propaganda campaign to stop people studying or prosecuting crimes related to disinformation. Tactics include: red herring, projection, conflation, SLAPP. www.technologyreview.com/2026/08/07/1...
technologyreview.com
How ideas of a vast censorship network moved from the online fringe to Trump policy
Narratives about a “censorship-industrial complex” spread in right-wing circles for years; then they took hold of Washington. What—and who—is behind them?
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Scott Horton @robertscotthorton.bsky.social · 07/08/2026
Adul El-Sayed was born and raised in Michigan and holds a PhD from Oxford (that's in England, not in Mississippi), where he was a Rhodes Scholar. He's a leading US public health expert. You, Tuberville, are motivated by just one thing: racism. It permeates your innermost self and defines you.
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Eileen Guo @eileenguo.bsky.social · 07/08/2026
W/ith @giselilla.bsky.social + @cargocultscientist.bsky.social, I delved into the origins of the “censorship-industrial complex” idea, how it went from the fringes of the online right to a driver of Trump2 policy, + what it means for the Internet. www.technologyreview.com/2026/08/07/1...
technologyreview.com
How ideas of a vast censorship network moved from the online fringe to Trump policy
Narratives about a “censorship-industrial complex” spread in right-wing circles for years; then they took hold of Washington. What—and who—is behind them?
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Prof. Stefan Rahmstorf @rahmstorf.bsky.social · 07/08/2026
"Es gibt Anzeichen, dass in der Klimawissenschaft die Leute zu vorsichtig waren. Weil sie Angst davor hatten, als alarmistisch eingestuft zu werden. Das war aber nicht alarmistisch, sondern alarmierend. Das ist ein großer Unterschied." @lewan.uk Stimmt. www.br.de/nachrichten/...
br.de
Weltklimabericht 2021: Welche Prognosen waren richtig?
Vor fünf Jahren hat der Weltklimarat IPCC in seinem "Sachstandsbericht" den damaligen Stand der weltweiten Klimaforschung zusammengefasst. Sind die darin enthaltenen Prognosen eingetroffen?
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consbegone.bsky.social @consbegone.bsky.social · 07/08/2026
"There are indications that people in climate science have been too cautious. Because they were afraid of being labeled alarmist. But it wasn't alarmist, it was alarming. That's a big difference." @lewan.uk
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Robert Reich @rbreich.bsky.social · 06/08/2026
The Democratic Party’s mega-donor class is horrified by the rising tide of progressive populism. Too bad. It's time they recognize the real choice is between democracy and tyranny, between an economy that works for all or one that works for a small sliver at the top.
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Hillary Rodham Clinton @hillaryclinton.bsky.social · 06/08/2026
Local man suggests jailing own boss.
Screenshot of an Aaron Rupar clip of J.D. Vance saying on Fox News: "If you are committing fraud against the American people, all of us in public leadership should be trying to stop it and throw you in prison for enriching yourself off the American taxpayer"
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Congresswoman Jasmine Crockett @crockett.house.gov · 06/08/2026
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Stephan Lewandowsky @lewan.uk · 06/08/2026
Weird, how reality is more alarming than ostensibly "alarmist" climate scientists were not too long ago. And this is still just at the beginning of a warming trend that will continue for several decades at least (unless human beings suddenly become much smarter than ever before. I have my doubts.)
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