Sarah Rajtmajer
srajtmajer.bsky.social
Sarah Rajtmajer
@srajtmajer.bsky.social
Associate Prof @PennState Tech, Data, Ethics

Thoughts on tech/AI, privacy, of course.
NLP, computational social science, science of science, social media

But also maths, music, ballet, nature, mental health.
https://www.rajtmajerlab.net
Brilliant 😂
Brutal but effective public health messaging from New York Public Health.

The CDC is compromised. They’re no longer a reliable source of information.

They push anti-vaxx & anti-science grift.

Get your vaccines. Wear a respirator. Clean the air

Get public health advice from experts, not RFK Jr
December 13, 2025 at 12:36 PM
Reposted by Sarah Rajtmajer
The #ai4scisci workshop will happen on Monday, December 15, 2025 11 AM Eastern Time (New York Time). We got great presenters ai4scisci.github.io/2025/! Register at JCDL 2025.jcdl.org website! #jcdl2025
AI4SciSci 2025
Artificial Intelligence for Science of Science | AI4SciSci 2025
ai4scisci.github.io
December 12, 2025 at 8:15 PM
Reposted by Sarah Rajtmajer
I guess it's fitting that it's a reimagined, worse version of someone else's artwork
December 12, 2025 at 4:00 AM
It’s the MOST wonderful time of the year. 🥜🩰🎄We are moved into the theatre for show week. @EisenhowerAuditorium @pennstateuniv.bsky.social
December 12, 2025 at 1:42 AM
Teaching is over for the semester. For the next few weeks, find me by the fire. #academia
December 10, 2025 at 9:58 PM
Reposted by Sarah Rajtmajer
This is INSANE www.nytimes.com/2025/12/09/t...

and these are our closest allies!
December 10, 2025 at 1:44 AM
Time machine
December 6, 2025 at 8:19 PM
👿 "ChatGPT “encouraged him to continue his podcast because it was creating ‘haters,’ which meant monetization for Dadig,” the DOJ alleges. He also claimed that ChatGPT told him that “people are literally organizing around your name, good or bad, which is the definition of relevance,..."
A newly filed indictment claims a wannabe influencer used ChatGPT as his "therapist" and "best friend" in his pursuit of the "wife type," while harassing women so aggressively they had to miss work and relocate from their homes.
ChatGPT Told a Violent Stalker to Embrace the 'Haters,' Indictment Says
A newly filed indictment claims a wannabe influencer used ChatGPT as his "therapist" and "best friend" in his pursuit of the "wife type," while harassing women so aggressively they had to miss work and...
www.404media.co
December 6, 2025 at 2:42 AM
The ❄️ ❄️ ❄️ is here. Upside: ⛷️ season
December 2, 2025 at 1:41 PM
Reposted by Sarah Rajtmajer
Even the the damn twitter card for this Nature Scientific Reports is clearly AI Slop.
November 27, 2025 at 6:56 PM
Reposted by Sarah Rajtmajer
The irony is rich.
November 28, 2025 at 7:39 PM
pura vida ✨
November 26, 2025 at 6:16 PM
Reposted by Sarah Rajtmajer
Although most of my photos right now are of State College autumn, here's Happy Valley from the sky this August. It was awe-inspiring to get this view.

So, come join us here! I'll be recruiting a graduate student to the Empathy & Moral Psychology (EMP) Lab during this cycle, to start in fall 2026.
October 21, 2025 at 3:21 PM
Reposted by Sarah Rajtmajer
you know what? good advice.
Reporter: Are you affirming that you think the president is a fascist?

Mamdani: I've spoken about --

Trump: Just say yes, it's easier than explaining.
November 21, 2025 at 9:21 PM
695 pages of machine language, 80,000 computational cycles, representing 0.01 seconds of sound.
I have always Felt music to be so deeply human. Seeing it represented this way takes on new meaning in the era of AI.

Timeless @tristanperich.bsky.social
November 21, 2025 at 3:09 PM
Reposted by Sarah Rajtmajer
The CDC website now disseminates disinformation about vaccines, claiming erroneously that infant vaccines might cause autism, when we know conclusively that they do not. It is difficult to overstate just how dangerous this is. www.cdc.gov/vaccine-safe...
November 20, 2025 at 12:27 PM
What AI companions can’t give.
November 16, 2025 at 1:54 PM
Reposted by Sarah Rajtmajer
These examples are from a recent mixed-methods study from MIT (arxiv.org/abs/2509.11391) that also found that "AI companionship rarely begins intentionally: 10.2% developed relationships unintentionally through productivity-focused interactions, while only 6.5% deliberately sought AI companions."
"My Boyfriend is AI": A Computational Analysis of Human-AI Companionship in Reddit's AI Community
The emergence of AI companion applications has created novel forms of intimate human-AI relationships, yet empirical research on these communities remains limited. We present the first large-scale com...
arxiv.org
November 16, 2025 at 5:23 AM
Next in the emerging-tech series of: What could possibly go wrong? 😅
www.nature.com/articles/d41...

@franciscopereira.bsky.social - saw this and thought of you immediately, of course. Reminded me of many wonderful chats in New Jersey.
‘Mind-captioning’ AI decodes brain activity to turn thoughts into text
A non-invasive imaging technique can translate scenes in your head into sentences. It could help to reveal how the brain interprets the world.
www.nature.com
November 15, 2025 at 8:00 PM
Exactly.
November 15, 2025 at 3:01 AM
Reposted by Sarah Rajtmajer
“Jesus App Encouraged Teen to Kill Parents, Commit Suicide”
November 14, 2025 at 9:28 PM
Reposted by Sarah Rajtmajer
I've been on the road so I'm behind the times—but if you wanted to destroy US science, I can think of no more expedient action.

Blatant unconstitutionality aside, fuck this backwards forwards and sideways.

www.science.org/content/article/u-s-congress-considers-sweeping-ban-chinese-collaborations
November 14, 2025 at 3:03 AM
Reposted by Sarah Rajtmajer
Life imitating art or vice versa? I'm not sure, but "Victims sue Sam Altman for ChatGPT encouraging harm and suicide" is the plot of "The Proving Ground," the latest "Lincoln Lawyer" novel from Bosch author @michaelconnelly.bsky.social
Victims Sue Sam Altman for ChatGPT Encouraging Harm and Suicide
YouTube video by More Perfect Union
youtube.com
November 13, 2025 at 3:52 PM
It seems increasingly frequent that my day gets punctuated by notifications from the Economist or NYTimes or other formally reputable source framing urgent truths as “questions”… #unsubscribe.
November 13, 2025 at 6:48 PM
Reposted by Sarah Rajtmajer
Imagination is resistance, @ruha9.bsky.social reminds us that, " we need to reject the gospel that says technology is inevitable, that the train has left the station... In an error of automated bullshit, it’s time to become bullshit detectors,"
#MozFest
November 8, 2025 at 5:31 PM