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Lex Fridman PodcastLuís and João Batalha: Fermat's Library and the Art of Studying Papers | Lex Fridman Podcast #209
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WHAT IT’S REALLY ABOUT
Fermat’s Library, Backstories, And Reimagining How We Do Science Online
- Lex Fridman talks with Luís and João Batalha, co‑founders of Fermat’s Library, about how we read, share, and build on scientific papers. They argue that the human backstory behind breakthroughs—Feynman’s wobbling plate, Goodfellow’s bar‑room GANs idea, Perelman’s protest via arXiv—makes science both more memorable and more honest. A large part of the conversation critiques today’s journal/paywall/peer‑review ecosystem, exploring preprints, open annotation, crowd review, and how metrics like impact factor distort incentives. They also dive into how Fermat’s Library works, how to actually read and annotate papers, why math/physics are inherently “democratic,” and even use sports and Game of Thrones to illustrate scientific thinking.
IDEAS WORTH REMEMBERING
5 ideasHuman backstories make scientific ideas more understandable and memorable.
Knowing that Feynman’s QED work started from watching plates wobble, or that GANs came from a bar conversation, reframes papers as chapters in a longer, messy story rather than isolated eureka moments. This context helps students remember both the result and why it matters.
Fermat’s Library aims to turn dense PDFs into living, annotated documents.
Through Journal Club, the Margins app, and the Librarian browser overlay on arXiv, Fermat’s Library lets anyone add LaTeX/Markdown annotations, clarify missing steps, and discuss papers at the locus of the text, gradually making seminal work more accessible over time.
The current journal/paywall model misaligns incentives and wastes public funding.
Governments fund research, scientists write and review for free, then publicly funded universities buy the same content back from for‑profit publishers. Impact factors turn citations into a gameable currency, pushing researchers toward hype and quantity rather than durable quality.
Preprints and overlay journals show viable paths toward open, faster science.
ArXiv and bioRxiv let results appear years before journal publication, enabling rapid iteration in fields like machine learning. Overlay journals (e.g., Discrete Analysis, Quantum) layer transparent peer review and curation on top of preprints without re‑locking content behind paywalls.
Reading papers well requires embracing confusion, iteration, and strategic skimming.
The Batalhas emphasize that papers are not optimized for clarity. Techniques like reading conclusions and related work first, hopping through references, and tolerating long “lost” periods before a sudden understanding can make unfamiliar areas tractable.
WORDS WORTH SAVING
5 quotesPapers are not optimized for clarity; they’re optimized for fitting into a few journal pages.
— Luís Batalha
If you’re struggling to read a paper, it might not mean the material is that hard.
— João Batalha
We might be past the event horizon for paywalled journals. The model just doesn’t make sense.
— Luís Batalha
You’re the best possible teacher for your future self right after you’ve understood something.
— João Batalha
I really believe it’s possible to get everyone to love math or physics. It’s not a function of the student; it’s a function of how you reveal the hidden beauty.
— Luís Batalha
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