Juan Murillo Vargas
jimurillo98.bsky.social
Juan Murillo Vargas
@jimurillo98.bsky.social
PhD student at MIT. Philosophy of language, philosophy of cog sci, philosophy of mind. Lower-case chomskyan, upper-case Nerd.
Reposted by Juan Murillo Vargas
lots of invigorating discussion this year at #BUCLD2025. Unsurprisingly, LLMs as models & as tools made many appearances w/a wide range of views/claims/caveats ab what they can(not) tell us ab language development
I'm still chewing on a few things that seemed to get short shrift 1/4 🐦🐦
November 10, 2025 at 4:30 PM
Reposted by Juan Murillo Vargas
You can't live your life based on hate - that way lies madness and bitterness - but allowing yourself to slip into hater mode from time to time is a lovely little treat, like a drunk cigarette or a decadent slice of cake
November 9, 2025 at 1:09 AM
Reposted by Juan Murillo Vargas
there was some discussion on here recently about the scientific legitimacy of cognitive dissonance research. as someone who has spent years investigating this literature, i wanted to make a thread to explain why pessimism is not justified by careful inspection of the evidence

1/
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 8, 2025 at 11:58 PM
Reposted by Juan Murillo Vargas
Good news everyone: #Duke Summer Seminars in Neuroscience and Philosophy (SSNAP) are back!! We are now accepting applications for SSNAP 2026, which will take place from May 26 to June 6, 2026. #neuroscience #philosophy #brain Please spread the word! ssnap.submittable.com/submit
SSNAP Applications Manager
SSNAP Applications Manager Powered By Submittable - Accept and Curate Digital Content
ssnap.submittable.com
November 7, 2025 at 11:58 AM
Reposted by Juan Murillo Vargas
since it's come up, i really like jake's paper about cognitive dissonance—i learned a lot reading it!

philpapers.org/archive/QUIU...
philpapers.org
November 6, 2025 at 3:52 PM
Reposted by Juan Murillo Vargas
Now out in an issue! ~~ www.cell.com/trends/cogni...
November 6, 2025 at 2:29 PM
Reposted by Juan Murillo Vargas
🧠 New paper alert! Can people infer others’ values not from what they choose, but simply from what comes to mind? Across four studies, we show they can—drawing on an intuitive theory of how options are generated.
doi.org/10.1016/j.cognition.2025.106238
👇
Redirecting
doi.org
November 5, 2025 at 7:31 PM
Reposted by Juan Murillo Vargas
For Halloween I have become my worst fear (an expected epistemic utility theory apologist)
October 31, 2025 at 6:49 PM
Reposted by Juan Murillo Vargas
Reposted by Juan Murillo Vargas
We're excited to announce that Cognitive Science at Dartmouth is recruiting PhD students to work collaboratively with me, Steven Frankland, and Fred Callaway. Come study the principles and mechanisms that enable us to understand, plan, and act in the world! Info: sites.dartmouth.edu/cogscigrad/
Cognitive Science Graduate Admissions – Information about graduate admissions from the cognitive science faculty
sites.dartmouth.edu
October 23, 2025 at 5:30 PM
Reposted by Juan Murillo Vargas
Language Of Thought's Wife
October 23, 2025 at 4:58 PM
Reposted by Juan Murillo Vargas
A new paper w/ the inimitable Sebastian Holt (now at N.Western w/ Dedre Gentner). Kids are slow to learn rules that govern number words. We ask: is this because young kids CAN'T learn such rules, or b/c of the kinds of (base-10) systems they're exposed to? royalsocietypublishing.org/doi/epdf/10....
Can preschoolers learn the syntax of number? Using rules to combine familiar and novel number words
royalsocietypublishing.org
October 20, 2025 at 4:11 PM
Reposted by Juan Murillo Vargas
Jobs: Cognitive Science, General Linguistics, Philosophy of Language, Pragmatics, Semantics: Postdoctoral Researcher (3.5 years) Philosophy of Language / Pragmatics / Logic / Cognitive Science, University of Tübingen
Jobs: Cognitive Science, General Linguistics, Philosophy of Language, Pragmatics, Semantics: Postdoctoral Researcher (3.5 years) Philosophy of Language / Pragmatics / Logic / Cognitive Science, University of Tübingen
Description: We are looking for a highly motivated postdoctoral researcher to support a large-scale interdisciplinary research initiative on the topic of "Common Ground" at the University of Tübingen. The project seeks to investigate the notion of common ground in linguistic communication by taking an interdisciplinary perspective, incorporating insights from, e.g., the philosophy of language, the cognitive language sciences, linguistic pragmatics, and/or formal logic or epistemology. The ide
dlvr.it
October 20, 2025 at 9:14 AM
Reposted by Juan Murillo Vargas
New paper on formats of representation in LLMs. I defend pluralism both about the vehicles of representation in ANNs (e.g. neurons, polytopes, embeddings) and about the formats of representation (e.g. nominal, analogue, structural). Hope it’s useful to someone. philpapers.org/rec/MALFOR-2
Fintan Mallory, Formats of Representation in Large Language Models - PhilPapers
This paper argues for a pluralist approach to representation in large language models. There are two parts to this pluralism, the first is that we should recognise more than one vehicle ...
philpapers.org
October 19, 2025 at 3:20 PM
Reposted by Juan Murillo Vargas
Any linguists/philosophers of language on here thought about this?

(1) I’m imagining that it’s raining, but I don’t think it is
(2) ?? I imagine that it’s raining, but I don’t think it is
(3) I often imagine that it’s raining, but I never think it is
October 18, 2025 at 2:06 PM
Reposted by Juan Murillo Vargas
In philosophy of perception, we find different intuitions pulling people in opposing directions

New studies from Eugen Fischer et al. show something important about that opposition:

It is not different people having different intuitions; it's each individual person having *conflicting intuitions*
Scientific or naïve? Perceptions of direct and indirect realism, and why they matter
Philosophical debates about the nature of perception are standardly informed by an empirical assumption about folk beliefs: They assume there is such a thing as “the” common-sense conception of visio...
onlinelibrary.wiley.com
October 15, 2025 at 7:34 PM
Reposted by Juan Murillo Vargas
Conversational turn-taking feels effortless, but it's a complex dance. We find social context—who you're talking to and what you're talking about—fundamentally changes conversational dynamics in both autistic & TD children. 1/

onlinelibrary.wiley.com/doi/10.1111/... w @chrismmcox.bsky.social
Social Context Matters for Turn‐Taking Dynamics: A Comparative Study of Autistic and Typically Developing Children
Engaging in fluent conversation is a surprisingly complex task that requires interlocutors to promptly respond to each other in a way that is appropriate to the social context. In this study, we dise...
onlinelibrary.wiley.com
October 15, 2025 at 9:28 AM
Reposted by Juan Murillo Vargas
my latest investigation for @consumerreports.org is based on months of reporting and 60+ lab tests of leading protein supplements

we found that most protein powders and shakes have more lead in one serving than our experts say is safe to have in a day (🧵)

www.consumerreports.org/lead/protein...
Protein Powders and Shakes Contain High Levels of Lead - Consumer Reports
CR tests of 23 popular protein powders and shakes found that most contain high levels of lead.
www.consumerreports.org
October 14, 2025 at 4:37 PM
Reposted by Juan Murillo Vargas
🚨New Preprint: We develop a novel task that probes counterfactual thinking without using counterfactual language, and that teases apart genuine counterfactual thinking from related forms of thinking. Using this task, we find that the ability for counterfactual thinking emerges around 5 years of age.
October 13, 2025 at 7:58 PM
Reposted by Juan Murillo Vargas
This is a big one! A 4-year writing project over many timezones, arguing for a reimagining of the influential "core knowledge" thesis.

Led by @daweibai.bsky.social, we argue that much of our innate knowledge of the world is not "conceptual" in nature, but rather wired into perceptual processing. 👇
October 9, 2025 at 4:31 PM
Reposted by Juan Murillo Vargas
Our paper in annual review of dev psych is out! It's a big-picture look at the development of social cognition from a computational perspective: compdevlab.yale.edu/docs/2025/an...
compdevlab.yale.edu
October 9, 2025 at 3:21 PM
Reposted by Juan Murillo Vargas
Do AI reasoning models abstract and reason like humans?

New paper on this from my group:

arxiv.org/abs/2510.02125

🧵 1/10
Do AI Models Perform Human-like Abstract Reasoning Across Modalities?
OpenAI's o3-preview reasoning model exceeded human accuracy on the ARC-AGI benchmark, but does that mean state-of-the-art models recognize and reason with the abstractions that the task creators inten...
arxiv.org
October 6, 2025 at 9:27 PM