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Nicholas Mancuso

@nmancuso.bsky.social
1.7K followers 1.3K following 2.2K posts

Associate Professor at USC. Statistical genetics of gene regulation and complex traits. Genetics/Stats/ML. Husband and father. GA➡️CA. He/him. Views are mine. www.mancusolab.com

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Nicholas Mancuso @nmancuso.bsky.social · 7h
Builders/creatives clasping hands meme
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Nicholas Mancuso @nmancuso.bsky.social · 10h
gutless cowards
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Nicholas Mancuso @nmancuso.bsky.social · 11h
"In any case, what really matters is that the true inner sanctum of human creativity hasn’t been breached and probably never will be, and also, that Sam Altman and Dario Amodei are contemptible little nerds." scottaaronson.blog?p=10169
scottaaronson.blog
The Mathocalypse
Last night my 9-year-old son was taunting my wife, complexity theorist Dana Moshkovitz, as follows: “mommy, I heard you got cooked! I heard that a robot solved the math problem you worked on …
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Will Ratcliff @wcratcliff.bsky.social · 14h
Out today in @nature.com: our review on how single cells evolve into multicellular organisms. With Ozan Bozdag, @kaitong25.bsky.social, Peter Yunker, and @matthewherron.bsky.social. rdcu.be/9ZuiKow9twKa For an overview, check out the video below.
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Quanta Magazine @quantamagazine.org · 20h
Last month, Dor Minzer and his graduate students rushed to post a milestone result in theoretical computer science, hoping to get ahead of a rumored AI proof. They were just in time. OpenAI put out a proof of a related conjecture yesterday. www.quantamagazine.org/as-ai-closed...
quantamagazine.org
As AI Closed In on ‘Unique Games’ Proof, Researchers Raced to Beat the Machines | Quanta Magazine
In the shadow of a rumored AI proof of one of the biggest problems in their field, three computer scientists rushed to publish their own milestone result.
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Nicholas Mancuso @nmancuso.bsky.social · 19h
This rules, okay
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GOLIKEHELLMACHINE @golikehellmachine.com · 19h
all the promo stuff for this show is so much fun (for a change) — i will have more official flyers with details later, but, lol
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bioRxiv Genetics @biorxiv-genetic.bsky.social · 21h
Placental cis-eQTL analysis identifies preeclampsia-dependent genetic regulation at promoters www.biorxiv.org/content/10.64898/20…
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Ben Recht @beenwrekt.bsky.social · 21h
I have no idea if this one is true, but all this result proves is the absurdity of big-O notation.
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Nicholas Mancuso @nmancuso.bsky.social · 22h
Ive been out of the CS game for far too long to try and judge the veracity of the proofs. Given UGC longstanding importance to cs theory it'll be valuable if it holds up, but I'll wait until (if at all) it's verified by experts.
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Hélianthe @helianthe.net · 07/10/2026
i think it's fundamentally because closed source software is sad in a mirror universe where openai released the weights, training data, and logs reproducibly, then we could all do science together on what's actually a miraculous machine instead they want to be secret wizards, so it's sad
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Carl T. Bergstrom @carlbergstrom.com · 07/10/2026
Terry Tao @teorth.bsky.social: Indiscriminate brute-force application of AI to mathematics is depleting the field of good questions without renewing this resource or providing commensurate value. OpenAI: We hear you. Here's a .zip file with 377 hasty AI solutions to important open problems.
nytimes.com
OpenAI Releases Findings on 377 Math Problems, Further Roiling Field (Gift Article)
After a previous solution angered mathematicians, the company characterized the new release as being more responsive to concerns about A.I. disrupting research.
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
Heaven forbid this was pointed out independent of any value of that statement bc lemme tell you
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Steve Huntsman @stevehuntsman.bsky.social · 07/10/2026
I think they fucked up again Not impressed by the spamming Plenty of answers look interesting but now I fear much of the earth has been salted. Who is gonna want to do the mop up work? What are we gonna learn about constructions and techniques that isn’t shallow?
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
Nigh time
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
Ok there is a LOT of variability in quality re the writeups. Some aren't bad?
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Quantian @quantian.bsky.social · 07/10/2026
Are you fucking kidding me with this one
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
I mean, I don't think there is anything wrong with using it, provided its made clear that results/math/etc were obtained with AI's help. I use it frequently, but in bio we have enough runway due to needing experiments to keep AI at bay for a bit
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
Yeah the math/cs fields are getting the brunt of this rn and like any paradigm shift (*shudders*) its going to be a while until researchers figure out how to adapt and integrate it [if at all].
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
Donald Duck in Mathslopic land
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
Yeah this sucks. I mean a ton of cool results, but its just garbage writeups, no human involvement to curate and improve arguments. Just a data dump.
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
Paper is the most AI written monstrosity ever. Just straight into the proof, no motivation, no connection to other areas, no implications for what this means and why its important.
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
god the write ups are... well... technically write ups
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
Okay. I'm much less excited about -how- these results have been released, but between yesterday's 3SUM/APSP and now UGC? I feel conflicted bc I want to be very excited about these results while not wanting to give free advertising to OpenAI that just said 'let er rip' w/o human involvement
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
Precisely because here the authors spent time to produce *understanding*. I would be shocked if additional work isn't built upon these results both by AI and researchers alike. It's not my field and I could easily be wrong however.
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
Yeah I'm not 100% sold on this to be clear, and the marketing aspect is precisely why my enthusiasm was dampened. But as I mentioned downthread, if these companies/tools aren't going away this seems like a better approach compared with previous 'ai solves problem here is incomprehensible paper'
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
Theres litany of other issues that arise with using/releasing math from ai models that range from moral/ethical and I wont pretend to be an expert and claim this is how things -should- be done. But if these systems really aren't going away, this seems like a step in the + direction compared to prev
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
For all the recent AI-math results lately, I think if companies are going to be involved, and experts are willing, this not such a bad model imo. The authors clarified and expanded up on the core results, and released work that presents that understanding alongside the idea.
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
As far as COI goes, I'm not quite sure. Academics are paid consultants all the time, provided that is reported to their Universities. The article was quite upfront about it, so I can't read that as anything resembling misconduct.
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
I can't really answer on behalf of the authors and its pointless to speculate tbh. As I mentioned in another thread, my enthusiasm was somewhat diminished (minor!) when I realized this was the result of Anthropic reaching out to the authors, rather than the authors using it themselves.
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bioRxiv Genetics @biorxiv-genetic.bsky.social · 06/10/2026
Linkage disequilibrium moderates how evolving genetic background shapes variant-level architecture www.biorxiv.org/content/10.64898/20…
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Hanbin Lee @epigenci.bsky.social · 06/10/2026
We studied the evolution of genome-wide linkage disequilibrium and its influence on genetic architecture with genetic drift. We found that the Bulmer effect is population size and demography dependent. For nerds: genetic architecture follows from solving PDEs.
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Nicholas Mancuso @nmancuso.bsky.social · 07/10/2026
I'm reading that as Anthropic compensated the authors. Given the statements about how this work is independent of their work at University [maybe for ownership legality reasons?], it reads as if this was consulting work. That is my interpretation, and the authors would be the ones to contact tho
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Daniel Swain @weatherwest.bsky.social · 06/10/2026
Just did some number crunching using latest (Oct 1) ECMWF seasonal data, and I must say that I've never seen such high predictive confidence in a very wet California winter. This is a truly extraordinary forecast amid a record-strength El Niño event. [Thread: please read to end.]
Model-relative sea surface temperature anomalies for November 2026–January 2027. The supplied grid is displayed without added smoothing or coastal filling. Beige marks land and gray marks missing ocean values. The main colour scale spans -2 to +10°F, with white at zero. Hot pink marks anomalies above +10°F. This map does not establish an operational ENSO category.
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Nicholas Mancuso @nmancuso.bsky.social · 06/10/2026
We're lucky enough to live within 3 blocks of our kids elementary school. But the sad reality is that I dont feel comfortable with them walking/biking themselves because they need to cross a 4-lane street where cars regularly speed ~ 50mph with no crossing guards! It's unreal. 😡
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Mark Peifer (He, him) @peiferlabunc.bsky.social · 06/10/2026
Please find 5 minutes today to draft your response to this drastic change in NIH Peer review. The deadline is October 13. I pasted my own response below as an example--please share widely 🧪
I am an NIH-funded scientist who has run a lab for 34 years.  I have served on literally dozens of NIH peer-review study sections, most recently this past June.  I also have served in Council for both NIGMS and for CSR.  I thus am very familiar with the current review process from both the prospective of an applicant and a reviewer.  I strongly oppose the proposed changes.  While NIH peer review is not perfect, it is the best system thus far devised, and is the envy of colleagues in other countries. Three experts in the field spend hours reviewing each proposal, using their knowledge of important issues to rank proposals by signficance, feasibility and impact.  Then they present their opinions to a panel of 20 or more expert sin the broader field, and a spirited discussion ensues.  Thus each proposal is put through  very stringent process, and the resulting ranking has substantial value in times when funding is limited.  Having review many times, I know that the proposed binning would provide equal "scores" to proposals that were greet with substanailly different degrees of enthusiasm.  Further, grants binned just bowl and just above the 25% cutoff would be subsequently viewed as if the enthusiasm for them quite divergent, certainly not an accurate summary.  The current fine-grained system avoids these issues.  Removing it will  make the task of NIH Program officers more difficult.   Binning also allows non-scientific issues to take on disproportionate weight in funding, an issue that will be accentuated if political appointees are making the ultimate decisions.  Please retain the current system.
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Nicholas Mancuso @nmancuso.bsky.social · 06/10/2026
dont get mad in my mentions about *a joke that is in regard to the lack of a TOC*. chill
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Arun Durvasula @arundurvasula.bsky.social · 06/10/2026
cool stuff from @trevorcousins.bsky.social, Richard Durbin, and @regev.bsky.social academic.oup.com/genetics/adv...
academic.oup.com
Deep coalescent history of the hominin lineage
Abstract. Coalescent-based methods are widely used to infer population size histories, but existing analyses have limited resolution at deep time scales (&
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Nicholas Mancuso @nmancuso.bsky.social · 06/10/2026
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Nicholas Mancuso @nmancuso.bsky.social · 06/10/2026
Yup, much to my shock last night! Still blown away by this. bsky.app/profile/nman...
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Damien C-C @dccc-phd.bsky.social · 06/10/2026
"You can teach a man what consent looks like but you can’t force him to care about it. It follows, I think, that we need radical solutions here: abolishing all-male institutions where such misogyny proliferates and festers and is fastidiously protected."
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Nicholas Mancuso @nmancuso.bsky.social · 06/10/2026
Glad to see the media finally being responsible for once
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Nicholas Mancuso @nmancuso.bsky.social · 06/10/2026
To be clear I'm not accusing the authors of any misconduct whatsoever. I saw the abstract and was floored initially, given the history of these problems and hypotheses. Making my way through the introduction I was further blown away by the fact that the spark to this work was due to AI.
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Rep. Judy Chu @chu.house.gov · 06/10/2026
This is outrageous. The millions of American lives in L.A. and San Diego are not “a small price to pay.” This is not normal, and this is not leadership.
latimes.com
Trump suggests letting Iran 'take out' Los Angeles and San Diego at campaign rally
Trump made the remarks during a rambling speech in which he said gas prices would be lower soon, touted his ouster of Venezuela’s dictator, and made attacks on news outlets.
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Nicholas Mancuso @nmancuso.bsky.social · 06/10/2026
Damn! Hadn't gotten that far yet (still making through html version on phone) . I was really hoping this wouldn't be another PR case for them. Still excited by the result however.
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Nicholas Mancuso @nmancuso.bsky.social · 06/10/2026
Now whether or not the lean proof encodes the problem at hand is another story, is that what you're getting at?
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Nicholas Mancuso @nmancuso.bsky.social · 06/10/2026
Lean is the verifier here. It won't compile if the proof is wrong. It could be an awkward or uninformative proof, but it shouldn't be wrong (barring bugs in the compiler)
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Nicholas Mancuso @nmancuso.bsky.social · 06/10/2026
Im not sure i follow, the proof was written in lean. Are you saying that a separate LLM should write the formal proof? Sorry just trying to make sure I better understand
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Nicholas Mancuso @nmancuso.bsky.social · 06/10/2026
Oh, not sure. It wrote it's proof for lean, couldn't have been done using agents? What's the argument for diff llm here?
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