Dan Chapman
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chapmanresearch.bsky.social
Dan Chapman
@chapmanresearch.bsky.social
Prickly environmental social scientist who prefers posting about my family, dogs, and music. Formerly: UMass, UPenn, Yale Law, UOregon. Currently doing an academic-industry tap dance.
Chaos.
November 17, 2025 at 7:44 PM
Reposted by Dan Chapman
In honor of apple picking season: the secret of why Honeycrisp apples are so expensive!

This tree is angry at being alive and will make it your problem (if you plant it)
Why Honeycrisp Apples Are EXPENSIVE
YouTube video by Farm to Taber
youtu.be
November 7, 2025 at 7:20 PM
Reposted by Dan Chapman
If you have to get permission to teach in your area of expertise from people who are definitionally not qualified to adjudicate your expertise then you are no longer working at a university.

You’re working at a state propaganda factory.
COLLEGE STATION, Texas (AP) — Texas A&M adopts policy requiring professors to get OK from school president to discuss certain race and gender issues.
November 13, 2025 at 11:48 PM
Batshit stupidity. I hate this country man.
“The prohibited activities would include joint research, co-authorship on papers, and advising a foreign graduate student or postdoctoral fellow. The language is retroactive, meaning any interactions during the previous 5 years could make a scientist ineligible for future federal funding.”
U.S. Congress considers sweeping ban on Chinese collaborations
Researchers speak out against proposal that would bar funding for U.S. scientists working with Chinese partners or training Chinese students
www.science.org
November 14, 2025 at 3:19 AM
Reposted by Dan Chapman
Wedding flowers courtesy of my son. Halloween 🎃 2025 @chapmanresearch.bsky.social
November 13, 2025 at 5:40 PM
So much to like about this little EP. Simple but carefully constructed instrumentation. Very danceable.
November 13, 2025 at 5:16 PM
Motivated reasoning may be ill-specified scientifically, but we sometimes get a shining example of it in reality. Flitter trying to defend NYT here is a great case study.
As a former member of NYT’s finance team & the co-author of this story exposing the relationship between Epstein & Bill Gates as well as one on Epstein & JPMorgan, I am really frustrated to see people claiming that NYT sat on publishable info about Trump and Epstein 🧵 www.nytimes.com/2019/10/12/b...
Bill Gates Met With Jeffrey Epstein Many Times, Despite His Past (Published 2019)
www.nytimes.com
November 13, 2025 at 5:07 PM
If you want to see some middle aged men write paragraphs talking past each other without any attempt at resolution, I’ve got just the thread for you!
There’s growing evidence that something was going seriously wrong in the classic early work on cognitive dissonance

Latest revelation: The story in When Prophecy Fails seems to have been fabricated in the most egregious way

But this is not the only one…

onlinelibrary.wiley.com/doi/abs/10.1...
Debunking “When Prophecy Fails”
In 1954, Dorothy Martin predicted an apocalyptic flood and promised her followers rescue by flying saucers. When neither arrived, she recanted, her group dissolved, and efforts to proselytize ceased....
onlinelibrary.wiley.com
November 13, 2025 at 4:58 PM
Honestly, the existence of Wemby, aka possibly the perfectly designed basketball cheat code, is a better argument for intelligent design than anything those religious weirdos have ever come up with.
Wemby blocked a 3 from the paint lmao
November 13, 2025 at 3:46 AM
just one of many in the academic male pervert industry
“He quickly became a highly valued friend and regular source of intellectual exchange and stimulation.”

Noam Chomsky, describing at length his profound friendship with Jeffrey Epstein:

drive.google.com/file/d/1zKMo...
HOUSE_OVERSIGHT_022405.txt
drive.google.com
November 12, 2025 at 9:02 PM
Wow, Trump team actually might have killed Epstein, huh. Crazy stuff.
November 12, 2025 at 8:56 PM
Reposted by Dan Chapman
Seen a few of the epstein emails now, all with different people and it's not the main issue here but is everyone illiterate
November 12, 2025 at 5:54 PM
dress codes are lame, especially ones that are unspoken.
November 12, 2025 at 5:15 PM
Waymo’s are motorized death bots but maybe they should come to Oregon because no one in this state knows how to drive to begin with.
*WAYMO LAUNCHES DRIVERLESS ROBOTAXIS ON FREEWAYS IN FIRST FOR US
*WAYMO FREEWAY ROUTES TO BE OFFERED IN LA, SF AND PHOENIX AREA
November 12, 2025 at 4:47 PM
Misery by Stephen King, somewhere around 12/13. It showed me things could be stressful and still enjoyable.
performative reading, lack of reading skills, nobody's reading anymore -- NO!

tell me about a book that changed you

for me? the *extremely* ahistorical novel, THE AGONY AND THE ECSTASY which I read at 13 and was like, "Oh, art can be *everything* to a maker, for good and bad"
November 12, 2025 at 6:15 AM
What a strange time to feel moments of joy.
November 12, 2025 at 5:24 AM
Burn in hell Jeffries.
Q: A provision was added allowing senators to sue the US govt for $500k. What do you say to that?

JEFFRIES: House Democrats are gonna offer an amendment before the Rules Committee to get that self-dealing sick provision out of the spending agreement
November 12, 2025 at 12:00 AM
yep. as with many aid issues, giving straight $$$ has more impact than offering goods.
spoke with the executive director of my local food bank today and got this really incredible line: "if you donate 1 can of green beans, we can give away 1 can of green beans. but if you donate a dollar, we can give away 6 cans of green beans"
November 11, 2025 at 9:40 PM
Someone who has continued to push the exact problematic approach (I.e., not slowing down and focusing on significance tests as a shorthand) complains about the problem for online points. Very cool. 😎
November 11, 2025 at 9:28 PM
Always a good day to be reminded why I didn’t stay in the humanities while in school. But I’m also glad in my adulthood that I discovered great humanities thinkers on websites like this. But things are bleak out there in the wild.
November 10, 2025 at 8:06 PM
I’m sorry but when professors can’t comprehend that there’s more than one correct way to punctuate, and that many scientific disciplines do the *exact* thing they say is incorrect, I’m never going to take a word you say seriously. Why do the most deeply unserious people get clout on this website?
November 10, 2025 at 8:02 PM
Reposted by Dan Chapman
I think the correct dimension to categorize Democrats isn't liberal to moderate, but those who think elected office is for the exercise of power and those who think elected office is your just reward after climbing the career ladder and waiting your turn.
Shaheen: "We've heard from a number of our colleagues on the other side of the aisle that they're willing to come to the table, they're willing to work with us once the govt is open to get this done. We've heard the same thing from the White House. So now we'll see if they're really gonna work w/us"
November 10, 2025 at 7:55 PM
I can’t imagine giving money to any national Democrat org. These people are your enemies too. No government official should be a millionaire and yet there’s plenty of them with D’s by there name while literal children starve. I will never support these people until they act like actual humans.
November 10, 2025 at 7:54 PM
This is like when social scientists get bored online and start policing word choice; they get so bored they even make their own memes. But people, there’s hobbies you can do instead! Listen to an album, go for a walk, cook a meal! You don’t need to be this way!
Let my gravestone read "PUNCTUATION GOES INSIDE THE QUOTATION MARKS."
November 10, 2025 at 5:49 PM
Reposted by Dan Chapman
Very interesting perspective! I often have the opposite thought: "Experimenting like a modeller"
Perhaps the two could co-exist for better workflows. Extensive exploration on simulated data should be the norm before running experiments to make sure the design is capable of the intended inference.
"Validate With Simulated Truth: A first habit is to test whether an analytical pipeline can recover known conditions."

Very good advice below. So much COVID nonsense (e.g. 'immunological dark matter') basically came down to a non-identifiable model that hadn't been properly tested.
Modelling Like an Experimentalist
Dahlin et al. (2024) apply experimental thinking to a model of mosquito-borne disease transmissions.
onlinelibrary.wiley.com
November 10, 2025 at 4:02 PM