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Lukas Graf

@lukasmathgraf.bsky.social

21 followers 110 following 22 posts

https://lukasmgraf.de/ PostDoc at the University of Passau, working in game theory (he/him)

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Political science 56%

Education 19%

Posts Media Videos Starter Packs

Reposted by Lukas Graf

WIRED @wired.com · 3d

At OpenAI’s Developer Day, CEO Sam Altman showed off apps that run entirely inside the chat window—a new effort to turn ChatGPT into a platform.

OpenAI Wants ChatGPT to Be Your Future Operating System

At OpenAI’s Developer Day, CEO Sam Altman showed off apps that run entirely inside the chat window—a new effort to turn ChatGPT into a platform.

www.wired.com

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Lukas Graf @lukasmathgraf.bsky.social · 13d

Not-Breaking Knot-News: @standupmaths.bsky.social proves 3+3=5 using rope, scissors and tape:
www.youtube.com/watch?v=Dx7f-nGohVc
Also contains a great sentence-template more journalists should use: "Next we need to understand what X is - and, then, we can get to the breaking news"

A century-old knot conjecture was wrong all along

YouTube video by Stand-up Maths

www.youtube.com

Reposted by Lukas Graf

Retraction Watch @retractionwatch.com · 15d

Math has publication fraud, too.

For a long time, mathematicians thought that as long as they keep away from predatory journals or paper mills, the problem does not affect them. This turned out to be wrong.

Math has publication fraud, too

Ilka AgricolaCredit: Thorsten Richter Scholarly publishing in mathematics is unlike many other fields, marked by fewer papers, fewer coauthors per paper and fewer citations. But that doesn’t mean t…

retractionwatch.com

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Lukas Graf @lukasmathgraf.bsky.social · 16d

When a typo in the abstract makes you more likely to read the paper :-)

The picture consists of two parts:
On the top a screenshot from a paper on arxiv. The title reads "Spectral extrema of graphs of given even size forbidding H(4,3)", the abstract below starts with the following text "A graph is sad to be H-free if it does not contain H..."
Below is a handdrawn image with the title "Without H everything is sad" and a drawing of a graph resembling a sad smiley face. Next to it is an arrow pointing to it with the text "grap(h) sad"

Reposted by Lukas Graf

Alanah Pearce @charalanahzard.bsky.social · 17d

It’s time to wake up — if you aren’t using ChatGPT to optimize your work (and your life!) you’re getting left behind. Watch this for 5 simple, lesser-known ChatGPT prompts that geniuses use!

youtu.be/IS65dBNlng8

5 Secret Ways to Use ChatGPT Like an AI Pro (2025 easy prompt guide!)

YouTube video by Charalanahzard

youtu.be

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Reposted by Lukas Graf

Marcel Dirsus @marceldirsus.com · 18d

America's captains of industry already behave as if the country were a dictatorship, so why would they be more likely to oppose the government if that government can imprison them? The CEOs won't save democracy. If anything, they'll sponsor its destruction

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Reposted by Lukas Graf

PharmBlog @pharmblog.bsky.social · 22d

Meiner Universität, der Uni Leipzig, fehlen 16 Mio. Euro, und es könnte sogar noch mehr werden. Das soll größtenteils über Einsparungen beim Personal ausgeglichen werden. Und da sind Wissenschaftler:innen wegen ihrer sowie schon unsicheren Beschäftigungssituation besonders vulnerabel. 1/

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Reposted by Lukas Graf

Thomas Kahle @tomkalei.bsky.social · Sep 6

In geometry we call something 'generic' if there is nothing special about the situation. E.g, 3 generic points in the plane don't lie on a single straight line.

If you prove a theorem for the generic situation, you have proved it in a special case only because you disregarded the special cases. 🤯

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Reposted by Lukas Graf

Florian Aigner @florianaigner.at · Sep 3

"40h pro Woche arbeiten. Das ist doch weniger als ein Viertel! Da geht doch mehr!"
Man hört das Argument von Wirtschaftstreibenden, jetzt auch vom deutschen Kanzler. Das Missverständnis dahinter: Viel arbeiten ist in erster Linie ein Privileg - das für viele einfach außer Reichweite liegt (Thread)

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Reposted by Lukas Graf

Johannes Kager @johk.bsky.social · Sep 2

Sorry to break it to you, aber Bielefeld gibt es wirklich! And it‘s actually lovely 😃

(Die Stadt, die tatsächlich nicht existiert, ist Leifers.)

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Lukas Graf @lukasmathgraf.bsky.social · Sep 2

Guess where my train crossed the border from Austria to Germany:

A screenshot from the Deutsche Bahn App showing the journey of a train from Vienna to Frankfurt. Up to Passau all times are green, afterwards all times are red

Lukas Graf @lukasmathgraf.bsky.social · Sep 1

UI design from hell (well, Editorial Manager - but what's the difference anyway):
Can anyone explain to me what the first check box means?

Headline: "Required Questions"
Below: "Please respond to any questions below and click Continue:"
Below that an empty checkbox, a red asterisk and the text "Please select your area of interest from the Classifications list: (1) Select one item each from "Discipline" and "Method" (2) Select up to two items from "Topics""
Below "Please click on the question below and Continue:"
Below that another empty checkbox, a red asterisk and the text "I accept the Publisher's Terms and Conditions and Privacy Policy and the Aries Privacy Policy."

Reposted by Leonhard Dobusch, Daniel Stein, Manuel Puppis , and 2 more Leonhard Dobusch, Daniel Stein, Manuel Puppis, Lukas Graf, Johanna Laakso

Florian Aigner @florianaigner.at · Aug 20

Ich habe geschrieben, dass das Gerede von "woker Cancel Culture" bloß eine Verschwörungstheorie ist, und dass echte Meinungsunterdrückung viel eher von autoritären Regimes ausgeht. Das hat einige Leute schwer getriggert. Und das ist auch gut so. Aber ein paar Anmerkungen sind noch wichtig:

Man darf ja nichts mehr sagen!

„Cancel Culture“ ist ein Mythos. Beschränkungen der Meinungsfreiheit gibt es aber tatsächlich – darüber sollten wir reden.

futurezone.at

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Reposted by Suresh Venkatasubramanian, Scott C. Doney, Anna Nagurney , and 8 more Suresh Venkatasubramanian, Scott C. Doney, Anna Nagurney, Robert W. Wallace, Philippe Huneman, Joshua Goodman, Erol Akçay, Juan Rocha, Brian Weatherson, Susan Strasser, Lukas Graf

Terence Tao @teorth.bsky.social · Aug 18

I wrote an op-ed on the world-class STEM research ecosystem in the United States, and how this ecosystem is now under attack on multiple fronts by the current administration: newsletter.ofthebrave.org/p/im-an-awar...

I’m an award-winning mathematician. Trump just cut my funding.

The “Mozart of Math” tried to stay out of politics. Then it came for his research.

newsletter.ofthebrave.org

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Lukas Graf @lukasmathgraf.bsky.social · Aug 8

PhD-level intelligence my ass #GPT-5

A screenshot from a chat with ChatGPT featuring a table called "summary table" with two columns: The left one is called "berry name" the right one is called "count of 'b'". In it are the following lines:
Boysenberry 2
Blackberry 1
Blueberry 1
Olallieberry 2
Chehalem berry 1
Marionberry 1

Lukas Graf @lukasmathgraf.bsky.social · Aug 8

Had to test it myself and am happy to report: Berry-based Turing tests still work for #GPT-5:

A screenshot from a conversation with ChatGPT: The question reads "Are there any berries that have a name with three bs?".
The answer reads "You’re looking for a berry whose name contains three letter B’s—which is quite a rare linguistic quirk! I dug around, and here's what I found:
The only real berry (i.e., a fruit) that fits that description is:
Worcesterberry – a name for Ribes divaricatum, a type of gooseberry native to the Pacific Coast of North America. Conveniently, it contains exactly three “b” characters: Worcesterberry. "

Reposted by Lukas Graf

eevee @eev.ee · Jul 4

down with Whatever eev.ee/blog/2025/07...

The rise of Whatever

This was originally titled “I miss when computers were fun”. But in the course of writing it, I discovered that there is a reason computers became less fun, a dark thread woven through a number of eve...

eev.ee

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Reposted by Dorothy Bishop, Mark E. Schaffer, Ian Hall , and 11 more Dorothy Bishop, Mark E. Schaffer, Ian Hall, Carlos Nunes Silva, Holger Nehring, Amy W. Ando, Erol Akçay, Joanna Tai, Paul Fisher, Larry W. Hunter, Jack Stilgoe, Lukas Graf, Julie Novkov, Debora Weber-Wulff

Opal @opalescentopal.bsky.social · Jul 27

With Tom Lehrer's passing, I suppose this is a moment to share the story of the prank he played on the National Security Agency, and how it went undiscovered for nearly 60 years.

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Reposted by Lukas Graf

Florian Aigner @florianaigner.at · Jul 9

Der Nationalratsabgeordnete Rudolf Taschner, ein Mathematiker, wettert im Parlament gegen ein Projekt der Musik und Kunst Privatuniversität. Er bezeichnet die Förderung als "verbranntes Geld". Ich schätze Taschner eigentlich sehr, aber ich denke, hier hat er sich verrannt. Ein Thread.

ÖVP-Abgeordneter Taschner attackiert Uni und Wissenschaftsfonds: "Verbranntes Geld"

In einer Rede schmähte der ÖVP-Wissenschaftssprecher ein Forschungsprojekt. Der Uni-Rektor ist empört und ortet "billige Vorurteile". Wissenschaftsministerin Holzleitner betont Autonomie des FWF

www.derstandard.at

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Reposted by Lukas Graf

Holly Gramazio @hollygramazio.bsky.social · Jul 6

Incredible article about a bunch of children - now in their 50s and 60s - who were taught to read using a doomed alternate alphabet invented by a Tory MP www.theguardian.com/education/20...

A Ladybird easy-reading book but it's all spelled very weird, eg the easy of "easy-reeding" is two strange E letters, a backwards Z, then a y.

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Lukas Graf @lukasmathgraf.bsky.social · Jul 5

Usually, a single counter example isn't enough to disprove any theory about how our society works - but Elon #Musk alone should be enough to forever discredit the idea that there is any connection between being rich and being intelligent.
#AmericaParty

Lukas Graf @lukasmathgraf.bsky.social · Jul 5

This perfectly captures why using LLMs feels so wrong (and I still have to find any situation where I would actually *want* to use one).

eevee @eev.ee · Jul 4

down with Whatever eev.ee/blog/2025/07...

The rise of Whatever

eev.ee

Lukas Graf @lukasmathgraf.bsky.social · Jul 1

Always a good sign when the emails from the typesetting department of a publisher are so badly typeset that they are barely readable...

Lukas Graf @lukasmathgraf.bsky.social · Jun 30

This is so dumb, I had to double check it's not a joke. But, no it's Google's #AI that's the joke.

To be fair, the AI did now add a source for its claim ... which is an Instagram post ridiculing this very AI summary 🤦

A screenshot from a Google search for the term "what did bob dylan weigh".
The response says: "Enthält auch Ergebnisse für what did bob dylan weight".
Then the AI summary reads "There's no official record of Bob Dylan's weight. However, based on observations of his physique in photos and videos, many fans speculate that he weighed around 6 or 7 pounds, according to a discussion on Instagram. Some people have also noted his thin build, which reinforces this idea." where the words "according to a discussion on Instagram" is a link

Reposted by Lukas Graf

Tagesschau Bot @tagesschau.bsky.social · Jun 29

"Müssen neutral sein, auch wenn das manchmal weh tut"#BerichtausBerlin#Klöckner#Regenbogenflagge

"Müssen neutral sein, auch wenn das manchmal weh tut"

Bundestagspräsidentin Klöckner verteidigte ihre Entscheidung, die Regenbogenflagge nicht zu hissen.

www.tagesschau.de

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Reposted by Lukas Graf

Florian Aigner @florianaigner.at · Jun 12

NYT 2028:
While it may certainly be called unorthodox to adorn the Capitol Rotunda with severed heads on spikes, the fact that not only the Democratic Caucus was decapitated, but also several Republican representatives, makes this a bipartisan symbol that could perhaps even be seen as a compromise.

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Lukas Graf @lukasmathgraf.bsky.social · Jun 10

Apparently the easiest way of deactivating Google's AI is to adding swear words to the search string.

Two screenshots from a google search, one (top) with the search term "pythagoras in unitary spaces" and one (bottom) with the search term "pythagoras in unitary spaces -fuckAI". For the former the top result is an answer by Google's AI Gemini. For the latter there are only actual search results.

Lukas Graf @lukasmathgraf.bsky.social · Jun 1

I really "love" how #YouTube 's AI has apparently decided that I want all video titles translated badly into German and all ads dubbed awfully into English.
(no, this numberphile video is not about the shortest newspapers of all times...)

A Screenshot from YouTube with a video from Numberphile titled "Die kürzesten Zeitungen aller Zeiten - Numberphile"

Reposted by Lukas Graf

Aaron Roth @aaroth.bsky.social · May 17

Check out the terrific set of EC 2025 accepted papers! ec25.sigecom.org/program/acce...

EC 2025 Accepted Papers - EC 2025

1. Optimality of Non-Adaptive Algorithms in Online Submodular Welfare Maximization with Stochastic Outcomes Authors: Rajan Udwani (University of California, Berkeley) 2. Investment and misallocation i...

ec25.sigecom.org

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Lukas Graf @lukasmathgraf.bsky.social · May 1

Also - and I know that this is the least problematic aspect of this utterly incomprehensible word salad pretending to be journalism, but - whether an average sexy-score of 6,23 for politicians is, as the article puts it, "not so bad" kinda depends on the overall distribution (which it doesn't show)