plain_simon's profile picture. Mathematician (algebraic geometry, motives & friends, singularities in statistics and ML). 

'Geometry is successful magic' (R. Thom) 

University of Amsterdam.

Simon Pepin Lehalleur

@plain_simon

Mathematician (algebraic geometry, motives & friends, singularities in statistics and ML). 'Geometry is successful magic' (R. Thom) University of Amsterdam.

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"Pessimism of the Algebra, optimism of the Geometry"


Simon Pepin Lehalleur 已轉發

My coworker showed this to me and I've been cackling since


Simon Pepin Lehalleur 已轉發

OH NO HE DIED

What’s a line delivery you’ll never forget?



Simon Pepin Lehalleur 已轉發

Wow, someone in the Trump administration blatantly insider trading Swamp drained libtard

SOMEONE JUST OPENED A #BITCOIN SHORT 30 MINS BEFORE TRUMP'S TARIFF ANNOUNCEMENT AND JUST CLOSED WITH $88,000,000 PROFIT HE OPENED THIS ACCOUNT TODAY 👀

Vivek4real_'s tweet image. SOMEONE JUST OPENED A #BITCOIN SHORT 30 MINS BEFORE TRUMP'S TARIFF ANNOUNCEMENT AND JUST CLOSED WITH $88,000,000 PROFIT 

HE OPENED THIS ACCOUNT TODAY 👀


Simon Pepin Lehalleur 已轉發

We're like 99% sure that's not where it came from but

What if Cain actually ate Abel and that’s where the word Cannibal came from



Simon Pepin Lehalleur 已轉發

this bothered me so much that i bought a novelty domain name and built naive sgd + a simple mlp classifier in javascript in order to try to convey the concept

dystopiabreaker's tweet image. this bothered me so much that i bought a novelty domain name and built naive sgd + a simple mlp classifier in javascript in order to try to convey the concept

i think it’s important to know that the vast majority (99.999..%) of people in the world believe that models such as Claude are intentionally programmed by humans, and that they find the supposition that they are instead grown or evolved to be absurd science fiction.



Simon Pepin Lehalleur 已轉發

I, too, made the mistake of *checks notes* taking OpenAI's charitable mission seriously and literally. In return, got a knock at my door in Oklahoma with a demand for every text/email/document that, in the "broadest sense permitted," relates to OpenAI's governance and investors.

TylerJnstn's tweet image. I, too, made the mistake of *checks notes* taking OpenAI's charitable mission seriously and literally.

In return, got a knock at my door in Oklahoma with a demand for every text/email/document that, in the "broadest sense permitted," relates to OpenAI's governance and investors.

One Tuesday night, as my wife and I sat down for dinner, a sheriff’s deputy knocked on the door to serve me a subpoena from OpenAI. I held back on talking about it because I didn't want to distract from SB 53, but Newsom just signed the bill so... here's what happened: 🧵

_NathanCalvin's tweet image. One Tuesday night, as my wife and I sat down for dinner, a sheriff’s deputy knocked on the door to serve me a subpoena from OpenAI.

I held back on talking about it because I didn't want to distract from SB 53, but Newsom just signed the bill so... here's what happened:
🧵


Simon Pepin Lehalleur 已轉發

🚨 What do reasoning models actually learn during training? Our new paper shows base models already contain reasoning mechanisms, thinking models learn when to use them! By invoking those skills at the right time in the base model, we recover up to 91% of the performance gap 🧵

cvenhoff00's tweet image. 🚨 What do reasoning models actually learn during training?

Our new paper shows base models already contain reasoning mechanisms, thinking models learn when to use them!

By invoking those skills at the right time in the base model, we recover up to 91% of the performance gap 🧵

Simon Pepin Lehalleur 已轉發

One Tuesday night, as my wife and I sat down for dinner, a sheriff’s deputy knocked on the door to serve me a subpoena from OpenAI. I held back on talking about it because I didn't want to distract from SB 53, but Newsom just signed the bill so... here's what happened: 🧵

_NathanCalvin's tweet image. One Tuesday night, as my wife and I sat down for dinner, a sheriff’s deputy knocked on the door to serve me a subpoena from OpenAI.

I held back on talking about it because I didn't want to distract from SB 53, but Newsom just signed the bill so... here's what happened:
🧵

Simon Pepin Lehalleur 已轉發

"I used to feel guilty in Cambridge that I spent all day playing games, while I was supposed to be doing mathematics. Then I realized that playing games is math." John H. Conway Made with #python #numpy #matplotlib


Simon Pepin Lehalleur 已轉發

Here's a joke a Cambridge mathematician once told me: Why do algebraic topologists struggle with Bott periodicity? Because they can't count to 8.

A friend of mine won an IMO gold, went on to obtain a PhD in algebraic topology, and now works at a frontier AI lab. This guy, however, doesn't know how to do integration by parts. He knows the principle, but treats those tricks as below him. AI models today give the same vibe.



Simon Pepin Lehalleur 已轉發

An amazing lecture for anyone who loves math! Fields Medalist Mike Freedman (known for his proof of the 4D Poincaré conjecture) talks about Perelman's proof of the 3D Poincaré conjecture at @HarvardMath University, @HarvardCMSA . Here’s the link: youtube.com/watch?v=60X5M1…

Saman_Habibi_E's tweet image. An amazing lecture for anyone who loves math! Fields Medalist Mike Freedman (known for his proof of the 4D Poincaré conjecture) talks about Perelman's proof of the 3D Poincaré conjecture at @HarvardMath University, @HarvardCMSA . Here’s the link: youtube.com/watch?v=60X5M1…

Simon Pepin Lehalleur 已轉發

From: Labyrinth Labyrinthos (1987), dir. Rintaro, Madhouse


Simon Pepin Lehalleur 已轉發

It gets you funding, support, and training to do that. Alec Radford has done a lot obviously but this is kind of like a rich person laughing at someone for not having money. “So just go get a bunch of money!” Kind of silly and facile.

I said this to Alec Radford and he laughed in my face and said "what would a phd get you? just solve problems"



Simon Pepin Lehalleur 已轉發

New research with the UK @AISecurityInst and the @turinginst: We found that just a few malicious documents can produce vulnerabilities in an LLM—regardless of the size of the model or its training data. Data-poisoning attacks might be more practical than previously believed.

AnthropicAI's tweet image. New research with the UK @AISecurityInst and the @turinginst: 

We found that just a few malicious documents can produce vulnerabilities in an LLM—regardless of the size of the model or its training data.

Data-poisoning attacks might be more practical than previously believed.
AnthropicAI's tweet image. New research with the UK @AISecurityInst and the @turinginst: 

We found that just a few malicious documents can produce vulnerabilities in an LLM—regardless of the size of the model or its training data.

Data-poisoning attacks might be more practical than previously believed.

Simon Pepin Lehalleur 已轉發

“I’ll declare war on you if you don’t give me the peace prize” is an incredible bit

jdcmedlock's tweet image. “I’ll declare war on you if you don’t give me the peace prize” is an incredible bit

Simon Pepin Lehalleur 已轉發

Are you a high-agency, early- to mid-career researcher or engineer who wants to work on AI interpretability? We're looking for several Research Fellows and Research Engineering Fellows to start this fall.

GoodfireAI's tweet image. Are you a high-agency, early- to mid-career researcher or engineer who wants to work on AI interpretability?

We're looking for several Research Fellows and Research Engineering Fellows to start this fall.

Simon Pepin Lehalleur 已轉發

Some people genuinely believe that biological consciousness is magic and the same people will tell you with a straight face that believing in non-biological consciousness is magic

the only answer to to "why machines will never be sentient" is "because animals are magic"



Simon Pepin Lehalleur 已轉發

“sorry for trauma dumping” bro i literally love and care for you? it’s an honour to learn about the complex and subtle ways that life has shaped you? i hope to be your trusted friend and confidant for the rest of my days?


Simon Pepin Lehalleur 已轉發

Why do Buddhists only use shampoo? Because they recognize the pain of conditioning.


Simon Pepin Lehalleur 已轉發

Tasmanian devils are endangered because 30 years ago one of them developed a universally fatal *contagious cancer* thats been ripping through the population ever since

schwarzposter_'s tweet image. Tasmanian devils are endangered because 30 years ago one of them developed a universally fatal *contagious cancer* thats been ripping through the population ever since
schwarzposter_'s tweet image. Tasmanian devils are endangered because 30 years ago one of them developed a universally fatal *contagious cancer* thats been ripping through the population ever since

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