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Posts by Christopher Callahan

To get the ball rolling, I'll start with the Make Epicycles Great Again Professorship in Geocentric Cosmology. Studies show that astronomy professors overwhelmingly support not only the idea that the Sun is at the center of the Solar System, but that our Solar System ...

3 days ago 6 2 1 0

@ccivanovich.bsky.social already made “stickiness” happen - everything else is second best

4 days ago 4 0 1 0
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Yale Report Finds Colleges Deserve Blame for Higher Education’s Problems

The national media is eating up this report as justification for perpetuating the lie that universities themselves - as opposed to decades of attacks from the far right authoritarian party - are responsible for eroding trust in higher education. You can almost hear them salivating at the chance.

5 days ago 1370 295 46 33
Poor Sleep Linked To Gong
Instrument’s Loud, Resonant Crash Can Be Disruptive

Poor Sleep Linked To Gong Instrument’s Loud, Resonant Crash Can Be Disruptive

Poor Sleep Linked To Gong https://theonion.com/poor-sleep-linked-to-gong/

6 days ago 8283 1473 62 130

MW charging 😫

6 days ago 1 0 0 0
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President, Extremely Normal Brain-Wise: Pope Weak On Crime, Also I'm Dr. Jesus Christ | Defector The President of the United States, Donald Trump, is a deranged old pervert whose brain, long since sodden and pitted from a lifetime of indulgence and Diet Coke, is foaming out of his ears. Over the…

President, extremely normal brain-wise: Pope weak on crime, also I’m Dr. Jesus Christ defector.com/president-ex...

1 week ago 361 75 8 12
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Projections of temperature-related excess mortality under climate change scenarios This study shows the negative health impacts of climate change that, under high-emission scenarios, would disproportionately affect warmer and poorer regions of the world. Comparison with lower emissi...

Agreed! But there are def places where warming will lead to a net reduction in mortality (follow-up paper based on the above).
I am obviously not a contrarian here - warming will kill lots of people! I just think the cold vs. heat story is legitimately nuanced.
www.thelancet.com/journals/lan...

1 week ago 3 0 1 0
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Mortality risk attributable to high and low ambient temperature: a multicountry observational study Most of the temperature-related mortality burden was attributable to the contribution of cold. The effect of days of extreme temperature was substantially less than that attributable to milder but non...

Not defending the people saying this in bad faith, but very credible and reliable statistical estimates using what Andy calls the "optimal temperature method" do in fact show that cold kills more than heat: www.thelancet.com/journals/lan...

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The Pope is WEAK on crime is so gd funny; I am HOWLING

1 week ago 15939 1635 579 116

:sobbing: the taxation of trade routes is in dispute ::

1 week ago 3381 517 26 44

RCP8.5 bot

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april is 1/3 over and i have finished 2/11 of the things i told people i would do for them during april 🫠

1 week ago 1 0 1 0
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I wrote about the end of
the U.S. Forest Service and the arrogance of trying to kill something like a forest: defector.com/the-trump-ad...

1 week ago 1242 350 19 17

The stupid elaborate coffees are so bad there. Just be normal

1 week ago 2 0 1 0
Video

To all who celebrate

1 week ago 8477 1907 83 85
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Opinion | NASA Flew by the Moon, but Behind the Scenes, Its Science Is a Chaotic Mess

The images of Earth from Artemis are amazing. But if we destroy our ability to understand (and live on) our planet, all they are is pretty pictures

www.nytimes.com/2026/04/08/o...

1 week ago 266 70 3 4
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The singular goal of all future US politics is to ensure Trumpism is defeated and cannot again take root here, and everything that serves that end is to be considered and prioritized. It's a holistic organizing principle, from a Green New Deal to Nuremberg 2 to expanding the court to Reconstruction.

1 week ago 2776 649 8 0

books: the rectangle that can’t send you push notifications. Try: books.

1 week ago 4063 871 30 33

Read a book. I recommend Francis Spufford or perhaps something by Guy Gavriel Kay

2 weeks ago 1 0 0 0

We did it!

2 weeks ago 1658 305 12 5

🚨 Congress held NIH and NSF budgets roughly flat. Scientists celebrated.

Here is what actually happened.

NIH awarded 4,641 fewer grants in FY2025 than the 4-year avg. New awards dropped 14%. Over $1.3B never reached investigators.

NSF awards fell 22%.

The money was there.

2 weeks ago 90 53 4 5
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Massive budget cuts for US science proposed again by Trump administration Budget proposal would also curb federal payments for scientific publishing.

BREAKING: In response to huge cuts in Trump's budget request, NSF is shuttering its SBE directorate. Staff will be transferred to other parts of the agency and "grants that align with Administration priorities" will be maintained.

That & more w/ @maxkozlov.bsky.social & @edwrdchen.bsky.social

2 weeks ago 408 322 26 75

This is so, so well-articulated.

2 weeks ago 10717 3901 98 353
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this is great, thanks so much for writing it

2 weeks ago 1 0 1 0

people may have noticed that @vsrikrish.bsky.social and I worked ourselves into a real tizzy last month over something called "RCP 8.5." Thank you to @progressivereform.bsky.social for giving us space and words to explain why!

TLDR: RCP8.5 is totally useful and not deceptive or misleading actually

2 weeks ago 39 20 6 3
You bolt awake in the mountains of Carthage. You are not online. It is
217 BC. You are the general Hannibal, and you have changed your mind. The future cannot come to pass. Rome must burn.

You bolt awake in the mountains of Carthage. You are not online. It is 217 BC. You are the general Hannibal, and you have changed your mind. The future cannot come to pass. Rome must burn.

2 weeks ago 978 52 3 6

folks you're never going to believe the size of this barrel, there are more crabs than anyone's had before, everyone is saying how many crabs there are

2 weeks ago 2 0 0 0

Call him Degrowth Donald

3 weeks ago 5 0 0 1
This is figure 2, which shows estimated damage from a marginal unit of past or future emissions.

This is figure 2, which shows estimated damage from a marginal unit of past or future emissions.

Future economic costs associated with historical CO2 emissions may be at least 10 times higher than costs already incurred from the same emissions, a study in Nature suggests. go.nature.com/3NDsly7 #econsky 🧪

3 weeks ago 28 16 0 0