Brian Weatherson
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bweatherson.bsky.social
Brian Weatherson
@bweatherson.bsky.social

Philosopher at University of Michigan. https://brian.weatherson.org/

Brian Weatherson is the Marshall Weinberg Professor of Philosophy at the University of Michigan. He specializes in epistemology and philosophy of language.

Source: Wikipedia
Philosophy 47%
Psychology 20%
Pinned
This is a thread of things I've recently published, starting with my book from last year, with Open Book Publishers, defending the claim that knowledge is interest-relative.

I'll continue this thread when new stuff comes out.

www.openbookpublishers.com/books/10.116...
Knowledge: A Human Interest Story
In this book the author argues for a groundbreaking perspective that knowledge is inherently interest-relative. This means that what one knows is influenced not just by belief, evidence, and truth, bu...
www.openbookpublishers.com
Fifteen Years

xkcd.com/3172/

Mostly for natural language semantics but partially for higher-order logic.

Sorry meant informally that talking up the stuff I do.

That’s close to what Sarah Moss covers on our main upper-level/grad formal course.

websites.umich.edu/~ssmoss/Phil...
websites.umich.edu

I'm talking my book a little here, but I think a really careful modal logic course (or unit) is a pretty good mix of translation between natural and formal language, proofs (in various guises) and modeling.

Where I am the dispute is whether you should have a C20 style metatheory/Gödel course as the compulsory course, or something that did modal logic(s), maybe some second-order logic, plus a bunch of probability and lambda calculus stuff.

We call the latter formal methods and I think it's more helpful

Yep. Put another way, the sin, or at least externality, it’s trying to reduce is road usage.

A Bad Debt Follows You
Bachelor Kisses
Spring Rain
Right Here
Love Goes On
Top 5 Side 1, Track 1s

You see a bunch of people saying that papers should include acknowledgments of all uses of "AI". I never know whether the people who say this intend to include the uses of LLMs as search engines.

Sections II.2 and II.3 of this are good on the strengths and weaknesses of LLMs as they stand.

In II.2, the LLM functions as a better search engine than any previously developed.

In II.3, it reports as a novel proof something it simply learned from scraping arXiv.
People on BlueSky: AI is useless! A stochastic parrot!

Mathematicians/biologists/physicists: It is already helping us do frontier technical research and in some cases solve open problems arxiv.org/pdf/2511.16072

(There are of course, as always, many caveats, but the paper is genuinely remarkable)
arxiv.org
People on BlueSky: AI is useless! A stochastic parrot!

Mathematicians/biologists/physicists: It is already helping us do frontier technical research and in some cases solve open problems arxiv.org/pdf/2511.16072

(There are of course, as always, many caveats, but the paper is genuinely remarkable)
arxiv.org
Top 5 Side 1, Track 1s

In U.S. philosophy an annoying norm has developed that reference letters aren't taken seriously unless they are padded out with pages of description of the candidate's file. This signals some familiarity with the file, but it's mostly tedious to read/write. Maybe that will go away with LLMs.

Reposted by Brian Weatherson

Completely separately, there is a very interesting Wojtowicz and DeDeo paper - arxiv.org/pdf/2407.14452 - arguing that LLMs make it harder to signal sincere willingness to cooperate across a variety of social situations, by making it cheaper to send previously costly signals.
arxiv.org

It's hard to get a single volume that attempts anything like what Russell did. The volumes that @histphilosophy.bsky.social is doing based on his podcast, e.g, this one, are great, and accessible without doing a philosophy major. But you'd need to read a lot more to cover what Russell covers.
Classical Philosophy: A History of Philosophy Without Any Gaps, Volume 1
A History of Philosophy Without Any Gaps, Volume 1
bookshop.org

Reposted by Brian Weatherson

it is the year 2025
Has no one in the BBC heard of the Streisand effect?

Did everyone think, "oh, Rutger Bregman, he'll be cool with this"?
I wish I didn’t have to share this. But the BBC has decided to censor my first Reith Lecture.

They deleted the line in which I describe Donald Trump as “the most openly corrupt president in American history.” /1
latest sham investigation just dropped

My favorite heuristic about LLMS that they're usually unhelpful when they give you 1 option, and usually helpful when they give you more. Exceptions in both directions of course, but it's a good heuristic.

I don’t think they are uploading their own papers with the prompt “Tell me some objections to this”; that would be interesting to see how they found it.

If they are they haven’t told me. The most I’ve heard is that some use it as super-Google, asking for explanations of unfamiliar terminology. I assume it’s not 100% reliable, but probably better than guessing or random web searching.

This week with bonus @philimprint.bsky.social content thanks to @devinsanchezcurry.com.
An "honest" book review. Formal methods in philosophy. Poetry against the machine. Who disagrees w/ scientific consensus? Folk psychology, science, & IQ. AI girl/boyfriends as "dependency-fostering products". Nancy Sherman answers "why philosophy?"
Mini-Heap - Daily Nous
New links... “It is not uncommon to open an analytic philosophy paper written during the past century and find logical symbols and mathematical notation among the prose… Why do analytic philosophers d...
dailynous.com

Reposted by Brian Weatherson

An "honest" book review. Formal methods in philosophy. Poetry against the machine. Who disagrees w/ scientific consensus? Folk psychology, science, & IQ. AI girl/boyfriends as "dependency-fostering products". Nancy Sherman answers "why philosophy?"
Mini-Heap - Daily Nous
New links... “It is not uncommon to open an analytic philosophy paper written during the past century and find logical symbols and mathematical notation among the prose… Why do analytic philosophers d...
dailynous.com

One role it can play right now is being something like a thesis advisor. It's not very good at that role, and it's fragile - it depends on being asked the right questions in a way a good advisor doesn't. But it's not useless, and getting better.

And I hope thesis advisors help people learn.

There have been one or two cases in history where rage against the rich and powerful has been used to left wing ends. The results are sometimes a bit more dramatic than intended, but that’s the nature of rage.

I agree these are important to the US higher ed system, but the parenthetical about other countries is weird.

The Australian system is nothing but equivalents of the big US state universities. That doesn’t undermine the value of the big US state universities.
Really important to stress that the Crown Jewels of the US higher education system were never the Ivies or elite SLACs (other countries have equivalents of these) but the well-funded, large, cheap, and excellently staffed public state university systems bringing high quality education to the masses.
One of the bragging rights that the US ed system had in the 20th century is that we didn't have education tracks. Essentially, any kid could go to a CC or state school & major in whatever they wanted to (obviously an oversimplification). I fear this aspect of the American dream is dying.
Really important to stress that the Crown Jewels of the US higher education system were never the Ivies or elite SLACs (other countries have equivalents of these) but the well-funded, large, cheap, and excellently staffed public state university systems bringing high quality education to the masses.
One of the bragging rights that the US ed system had in the 20th century is that we didn't have education tracks. Essentially, any kid could go to a CC or state school & major in whatever they wanted to (obviously an oversimplification). I fear this aspect of the American dream is dying.

Reposted by Richard Pettigrew

Nice example of Simpson’s Paradox in this post.

Minor league umpires have a higher accuracy rate on ball-strike calls than major league umpires but

(a) they are worse on easy calls and
(b) they are worse on hard calls.

blogs.fangraphs.com/your-final-p...
Your Final Pre-Robo-Zone Umpire Accuracy Update
This is the last time we’ll get to judge umpire accuracy without the ABS challenge system. Where do umpires stand, and how might we expect their accuracy to change once the robots get involved?
blogs.fangraphs.com

FotMob.com is good for real time xG, though I don’t know anything about the company behind it.
FotMob
FotMob is the essential app for matchday. Get live scores, fixtures, tables, match stats, and personalised news from over 500 football leagues around the world.
FotMob.com

Reposted by Brian Weatherson

We the Would-be-goods shall release a new album on 13 February, *Tears Before Bedtime*. At our Bandcamp page you can listen to ‘The Gallopers’, a single from the album, and watch the first ever Would-be-goods video . . .

would-be-goods.bandcamp.com/album/tears-...
Tears Before Bedtime, by Would-Be-Goods
14 track album
would-be-goods.bandcamp.com