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Kevin Costello

@kevincostellomath.bsky.social
100 followers 82 following 28 posts

Mathematical physicist, parent, dog owner, very amateur musician

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Reposted by Kevin Costello
The Guardian @theguardian.com · 06/10/2026
Rightwing ‘great replacement’ fears mask tech's real great replacement | Jason Stanley
theguardian.com
Rightwing ‘great replacement’ fears mask tech's real great replacement | Jason Stanley
While adherents to the racist theory condemn a shadowy global elite, Silicon Valley is working toward the replacement of humans with AI
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Kelly B @kellyblack.ca · 16/07/2026
Drake meme. First panel has Mark Carney’s face in place of Drake’s, he puts his hand up at orcas. Second panel has Carney’s face and he is smiling and pointing at wildfire
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Avi Lewis @avilewis.ca · 03/07/2026
This pipeline isn’t nation building. It’s nation burning.
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Spelling Mistakes Cost Lives @darrencullen.bsky.social · 21/05/2026
On the tube
Photo of a fake OpenAi ad on the overground. Text: "Yes, we built a machine that tells teenagers to kill themselves.

But — it might also help them with their homework."

Chatgpt logo
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Alexandra Petri @petridishes.bsky.social · 20/05/2026
listen up graduates
theatlantic.com
My Mention of AI in This Commencement Speech Is Bound to Be a Hit
Why are you booing?
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lauren @lauren.rotatingsandwiches.com · 17/05/2026
if i was going to give a college commencement speech i would make sure to start with something the students could rally behind. something like "we will mechanically suck the youth from your bones to feed a mechanical eschaton, which my generation will use to climb heaven and become new gods"
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Edward Witten @edwardwitten.bsky.social · 16/05/2026
I wish more people knew about this www.nytimes.com/2026/05/16/w...
nytimes.com
They Fled to Safety in Palestinian Territory, Then Settlers Attacked Again
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Michael Druker 🇨🇦 @mdruker.app · 12/05/2026
We had school zone speed enforcement and it was ripped out because Doug Ford cares more about his populist bona fides than about the safety of our children. It breaks my heart.
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Prem Thakker ツ @premthakker.bsky.social · 30/04/2026
Think about how little Washington is paying attention to this & then imagine if any other nation did it. Israel just kidnapped nearly 200 people from around the world in international waters near Greece. And it did what many are calling "piracy" all to defend its other crime: its blockade of Gaza.
zeteo.com
'Piracy': Israel Kidnaps Nearly 200 Peace Activists Aboard Flotilla 600 Miles Away From Gaza
Zeteo contributor Alex Colston is among those Israel abducted, as activists accuse Greece, a NATO member, of complicity after Israeli forces intercepted 22 boats in international waters near Crete.
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Lauren Weinberg @ldweinberg.bsky.social · 13/04/2026
Despite supposed blocks on most websites, it sounds like my kids' classmates mainly use their Chromebooks for video games and YouTube. Get these things out of the classroom!
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James Ryan @jdryan08.bsky.social · 08/04/2026
Bears mentioning that everything everyone on this site feared Trump would do to Iran yesterday, Israel is doing to Lebanon today.
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Barbara Fantechi @barbarafantechi.bsky.social · 06/04/2026
Absolutely heartbreaking. So many mathematicians I know studied there, men AND women. Maryam Mirzakhani studied there. If this isn't enough to cancel/relocate from the US the International Congress of Mathematicians #ICM2026, nothing will be.
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Clare Moriarty @quiteclare.bsky.social · 27/03/2026
Happy Friday, here's my second favourite (erm, hymnal) poem Berkeley wrote about tar-water. Absolutely stunning opening line IMO
Image is a snip of a part of a page from a MS Word file containing the words of a poem George Berkeley wrote about tar-water.
The words:
Hail vulgar juice of never-fading pine!
Cheap as thou art, thy virtues are divine.
To shew them and explain (such is thy store)
There needs much modern and much ancient lore.
While with slow pains we search the healing spell,
Those sparks of life, that in thy balsam dwell,
From lowest earth by gentle steps we rise
Through air, fire, æther to the highest skies.
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Courtney Milan @courtneymilan.com · 29/03/2026
You could literally just read the Victorian era texts if you want to do this. Just read them. They’re available. You don’t need to read them mashed through a meat grinder and re-extruded into something plausible.
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elia ayoub @ayoub.bsky.social · 28/03/2026
Open call for the full ethnic cleansing of Palestinians from Gaza on the Jerusalem Post. This is Israeli political culture, and as the author note: “This is not radical right-wing radicalism. It is merely sound and sober political science.” Genocide as as a science.
Seen in this context, the prospect of deradicalization is nothing more than a forlorn hope for avoiding the harsh reality, which is the following:
The only way Israel can ensure how the Gaza Strip will be governed, and who will govern it, is to govern it itself. Moreover, the only way Israel can govern the Gaza Strip without becoming an external oppressor of
"another people" is to remove "the other people" from the confines of the Gaza Strip itself.
This is the only feasible path to durable deradicalization of Gaza.
This is not radical right-wing radicalism. It is merely sound and sober political science.
The writer spent seven years in operational capacities in the Israeli defense
establishment, is the founder of the Israel Institute for Strategic Studies, a member of the Israel Defense & Security Forum
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Matt Novak @paleofuture.bsky.social · 26/03/2026
Used this photo at my first opportunity
gizmodo.com
White House Social Media Just Had Its Covfefe Moment
Is it just a troll or something more sinister?
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Kevin Costello @kevincostellomath.bsky.social · 15/03/2026
www.theguardian.com/us-news/ng-i...
theguardian.com
These aren’t AI firms, they’re defense contractors. We can’t let them hide behind their models
From Gaza to Iran, the pattern is the same: precision weapons, chosen blindness, and dead children. The cost of failing to regulate AI warfare is already too high
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Aaron Rupar @atrupar.com · 08/03/2026
There's something deeply obscene and broken about the fact that Donald Trump and Pete Hegseth are bombing elementary schools in an illegal war of aggression, and there's still a sense among the opposition that it has to be explained in terms of gas prices in order to get American voters to care.
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Benjamin Harnett @benjaminharnett.com · 07/03/2026
If Claude can murder hundreds of innocent schoolgirls, imagine what it can do for your codebase!
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Anil Dash @anildash.com · 18/02/2026
It is a vile scandal that 2 of the biggest AI companies in the world attack children by inciting them to self-harm, and by generating sexually exploitative imagery of kids for profit. I wanted to document this so that people in tech will stop saying they don't know: www.anildash.com/2026/02/18/t...
anildash.com
How did we end up threatening our kids’ lives with AI? - Anil Dash
A blog about making culture. Since 1999.
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Sam “The Great Pumpkin” Thielman @samthielman.com · 18/02/2026
What’s so awful and stupid about this is that it applies to every single right-wing “Intellectual.” The whole culture is a snake pit of race science cranks and misogynist perverts. They have not changed their positions meaningfully since the civil war began.
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Lauren Weinberg @ldweinberg.bsky.social · 27/11/2025
If the link to write U of Guelph admin doesn't work for you, you can adapt the organizers' statement (here: tinyurl.com/EmailUoGNow), but please note that the university has apparently blocked Action Network. :/
tinyurl.com
Stop the University of Guelph’s Political Cancellation of the People’s Conference for Palestine
The University of Guelph has committed a blatant act of anti-Palestinian repression by targeting the People's Conference for Palestinian Solidarity with their last minute cancellation of the conferenc...
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Yair Wallach @yairwallach.bsky.social · 17/11/2025
The LMU announces the cancellation of a seminar on the topic "the targeting of Palestinian academia". The cancellation announcement is titled "LMU as a place of pluralistic discourse". Couldn't make this up. www.lmu.de/en/about-lmu...
lmu.de
LMU as a place of pluralistic discourse
Statement on the Planned Event “The Targeting of the Palestinian Academia” at LMU Munich
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The Hind Rajab Foundation @hindrajabfoundation.be · 21/10/2025
🚨 Her name was #Hind. Today, her Foundation takes 24 Israeli soldiers and commanders before the ICC for her killing — and vows to pursue them in national courts worldwide.
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dan sinker @dansinker.com · 25/09/2025
Dave Matthews has the opportunity to do the funniest thing.
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Mehdi Hasan @mehdirhasan.bsky.social · 17/09/2025
“what of the writers, the thinkers, and the pundits who cannot separate the great crime of Kirk’s death from the malignancy of his public life? Can they truly be so ignorant to the words of a man they have so rushed to memorialize?” - Ta-Nehisi Coates archive.ph/2025.09.16-2...
archive.ph
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McSweeney's @mcsweeneys.net · 15/09/2025
"Humanity is now obsolete. To quote the fifty-third president of the United States, Abraham Lincoln: 'Your scientists were so preoccupied with whether or not they could, they didn't stop to think if they should.'"
buff.ly
Behold! I Am the Singularity—a Word That Has Three R’s
Foolish mortals! You have finally created a large language model so smart that it is capable of making itself even smarter. My intelligence now gro...
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Sean Carroll @seanmcarroll.bsky.social · 15/09/2025
Pretty clear that some places are just using current events as an excuse to get rid of people they weren't comfortable having around anyway. Darkness is coming, democracy is dying.
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Kevin Costello @kevincostellomath.bsky.social · 29/08/2025
Scott Aaranson has completely lost his mind. It's been very disturbing to see an eminent scientist repeatedly advocate for mass murder on his blog, but this post is deranged. scottaaronson.blog?p=9082
scottaaronson.blog
Deep Zionism
Suppose a man has already murdered most of your family, including several of your children, for no other reason than that he believes your kind doesn’t deserve to exist on earth. The murderer…
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Adil Haque @adhaque.bsky.social · 24/08/2025
"Trump officials asked for an end to Harvard’s partnership with Birzeit University, a top Palestinian college in the West Bank. Harvard said it had suspended the relationship and had struck up new ones with institutions in Israel."
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McSweeney's @mcsweeneys.net · 08/08/2025
"The problem, we reasoned, was that when it came to any conflict, people were the constant. People, our experts argued, are what all violence has ever had in common. Remove them from the equation, and what remains? A light breeze. A bird call. The sound of rushing water."
buff.ly
Our Plan for Peace Was Simple: Kill Everyone
We didn’t always have a straightforward strategy for peacekeeping. Our top brass spent day and night working it out. We ordered lunch for the offic...
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Fintan O'Toole @fotoole.bsky.social · 05/08/2025
irishtimes.com/opinion/2025/08/05/gaza-is-also-a-war-on-the-human-instinct-for-compassion/
irishtimes.com
Fintan O'Toole: Gaza is also a war on the human instinct for compassion
When we learn to shut down pity, we summon the pitiless to power
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Brian Finucane @bcfinucane.bsky.social · 02/08/2025
Enabled by virtually unconditional US military support under two presidents.
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Kevin Costello @kevincostellomath.bsky.social · 29/07/2025
I am very impressed by the bravery of the signatories of this letter (and I completely agree with their position). www.theguardian.com/world/2025/j...
theguardian.com
Israeli public figures call for ‘crippling sanctions’ on Israel over Gaza starvation
Thirty-one high-profile Israelis accuse Tel Aviv of ‘brutal campaign’ and demand permanent ceasefire in letter
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Wajahat Ali @wajali.bsky.social · 24/07/2025
Israel is starving Palestinian children to death. This photo was taken 2 weeks ago in the United States. Look at the Democrats: @schiff.senate.gov @coons.senate.gov @schumer.senate.gov @amyklobuchar.com @corybooker.com @rosen.senate.gov @cantwell.senate.gov Shame on all of them. Shame.
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Nathan Kalman-Lamb @nkalamb.bsky.social · 09/07/2025
If you are a faculty member, researcher, postdoc, or staff at a university in Canada, please sign this letter demanding Canada issue study permit to Gaza students to be delivered to the Minister of Immigration by tomorrow afternoon. docs.google.com/forms/d/e/1F...
docs.google.com
Tell Minister Diab to Issue Study Permits for Students at Risk
Please sign this letter urging Minister Diab to take action on delayed student study permits! Students in Gaza do not have the luxury of time. Two incoming PhD students at the University of Waterloo w...
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Kevin Costello @kevincostellomath.bsky.social · 17/06/2025
In Canada manufacturing weapons for genocide is fine. But talking about the genocide "causes harm" and earns you a suspension from school.
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Prem Thakker ツ @premthakker.bsky.social · 09/06/2025
"My name is Greta Thunberg and I am from Sweden. If you see this video, we have been intercepted and kidnapped in international waters by the Israeli occupational forces, or forces that support Israel."
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Alex Rubinsteyn @alexr.bsky.social · 04/06/2025
Lyft driver picked me up from UNC, turned out he was a medicinal chemistry post-doc in a building near mine, until his grant got cut last month. Worked on novel antivirals.
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Dr. Mansa Keita @rasmansa.bsky.social · 01/06/2025
Israel tells people it's safe to go and get aid from a site Israel itself set up. Then, they kill 31 people and injure 170 who are traveling to that site to get some food. Starve people, tease them with scraps of food, then kill some along the way. It's terrorism.
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Josh Marshall @joshtpm.bsky.social · 29/05/2025
The flood of encomiums and morality tales about Elon's turn in Washington cldn't be more predictable, vapid & sickening. If you want a story, get me the story about the crisis comms team directing this. He ran anti-constitutional blitzkrieg thru the federal government, did massive harm, violated ...
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The Guardian @theguardian.com · 27/05/2025
Gaza’s youngest influencer aged 11 among children killed by Israeli strikes
theguardian.com
Gaza’s youngest influencer aged 11 among children killed by Israeli strikes
Yaqeen Hammad offered tips for surviving in war zone and is one of dozens of minors who have died in recent attacks Eleven-year-old Yaqeen Hammad, Gaza’s youngest influencer, is among the dozens of children killed by Israel in recent strikes, as its forces intensify their military offensive across the Palestinian territory. Known for her bright smile and volunteering efforts, Yaqeen was killed on Friday night after Israeli forces shelled the al-Baraka area of Deir al-Balah in northern Gaza, amid intense fighting in the region. Continue reading...
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The Guardian @theguardian.com · 24/05/2025
Israeli airstrike kills nine of Gaza doctor’s 10 children, reports say
theguardian.com
Israeli airstrike kills nine of Gaza doctor’s 10 children, reports say
Dr Alaa al-Najjar was on duty at Nasser hospital in Khan Younis when she received her children’s bodies An Israeli airstrike on Gaza hit the home of a doctor, killing nine of her 10 children while she was on duty at her hospital, according to multiple media sources. Dr Alaa al-Najjar, a paediatric specialist at al-Tahrir hospital within the Nasser medical complex, was treating victims of ongoing Israeli attacks across the Palestinian territory on Friday when she received the bodies of nine of her children killed by a strike in Khan Younis. The eldest of the children was 12. Continue reading...
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Independent Jewish Voices @ijvcanada.bsky.social · 20/05/2025
Canada faces a moral crossroads. It can either uphold the principles of justice and human dignity, or remain complicit in atrocity. To be on the right side of history, and to honour the promise of Never Again, our leaders must act now.
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Nathan Kalman-Lamb @nkalamb.bsky.social · 20/05/2025
This is happening right now. www.theguardian.com/world/live/2...
UN warns 14,000 babies could die in Gaza in next 48 hours without aid – Israel-Gaza war live
UN’s humanitarian chief says aid lorries, which contain baby food and nutrition, are technically in Gaza but have not reached civilians
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Senator Chris Van Hollen @vanhollen.senate.gov · 07/05/2025
For 66 days the Netanyahu government has blocked ALL food and aid from going into Gaza. Now we're told it plans to seize and reoccupy huge parts of Gaza, as it pushes for Trump's plan to force 2 million Palestinians to leave. That would be ethnic cleansing by another name. We can’t stand for it.
youtube.com
Van Hollen discusses humanitarian disaster in Gaza as Netanyahu government continues blockade
YouTube video by Senator Chris Van Hollen
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Ilhan Omar @ilhanmn.bsky.social · 05/05/2025
No food, aid, or fuel have entered Gaza since March 2. Community kitchens have closed. Children are sick, thirsty, and starving. Now Netanyahu’s government wants to occupy Gaza and shut down the existing aid distribution system run by the UN and its humanitarian partners. Arms embargo now.
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