Pratyush Mishra

Pratyush Mishra

@pratyush.zip

Current: Asst Professor at Penn CIS Past: Cryptographer at Aleo Crypto and computer security PhD, UC Berkeley he/him Website: pratyush.zip Photoblog: photos.pratyush.zip

725 followers651 following331 posts

Pratyush Mishra reposted

An internal model at OpenAI has produced a claimed refutation of ETH! Russell Impagliazzo, Mohan Paturi, and I have been asked to help organize an open and independent examination of this claim. 1/4

Might be difficult to find a piece of literature with more net societal damage per unit time than Harry Potter...

jenny tightpants@jtp.bsky.social

"the author of that harry potter story leads an insane cult that's captured much of the media in this country" is a different person if you're in the UK or the US

Pratyush Mishra reposted

A world without open problems Here are some that fell today: K-server: arxiv.org/abs/2609.15979 Matroid Secretary: arxiv.org/abs/2609.145... Matrix Spencer: arxiv.org/abs/2609.15025 (Well Matrix Spencer was maybe also a few weeks ago, but who's counting? arxiv.org/abs/2608.28816 )

arxiv.orgThe $k$-server conjecture is trueThe $k$-server conjecture states that a deterministic online algorithm can achieve competitive ratio $k$ on every metric space. We prove the conjecture. Specifically, we show that the work function al...
Aaron Roth@aaroth.bsky.social

So we are clearly moving to a world that will be without open problems, but this doesn't mean math is going away. Interesting work will correspond to discovering new questions and coherent theoretical frameworks. Well defined agreed-to-be-interesting problems won't last long.

This will sound rude, but we have AI systems autonomously hacking and finding real vulnerabilities and solving mathematical problems, and people still are saying that it "doesn't work". Like come on, maybe it won't kill us (yet), but it is a rather capable tool. Update your threat models.

Pratyush Mishra reposted

Over the years I have come to the conclusion that ORCID doesn't really solve any problem that we have other than to occasionally distinguish authors who have very similar names. The current wave to require ORCID authentication feels like flailing in the wind.

Pratyush Mishra reposted

Huge news! Police Predators now has an interactive map! You can click each dot to see the officer, their most recent department, job title, case status, original charges, and final charges (if applicable). Give it a look and let me know if you have any feedback! dash.geocod.io/maps/share/l...

Pratyush Mishra reposted

I wrote about the Trojan horse, and what we can learn from her mouth about different cultural attitudes towards deception and violence. As someone comments below, the phrase GIFT ARTICLE is pretty scary in this context.

Chris Suellentrop@suellentrop.bsky.social

Turns out @emilyrcwilson.bsky.social knows a lot about ancient epics www.theatlantic.com/ideas/2026/0...

Pratyush Mishra reposted

Replying to @chrispeikert.bsky.social

2/ Strangely, Astra didn't optimize the polynomial approx factor! 1min with GPT-5.6 suggests that n^c -CVP is hard for **any c < 1/14** (not just c=1/400), simply by tightening up the bookkeeping. (Recall that c=1/2 is a fundamental barrier, where n^c-CVP is in NP \cap coNP.)

Pratyush Mishra reposted

Some initial thoughts, and a complicated mix of feelings. Wow. I mean, Erdos problems are cool (I genuinely mean that), I didn't know about the Jacobian conjecture before it got disproved. But this newest batch from OpenAI hits home in a way the previous announcements did not.

Pratyush Mishra reposted

"We're all worried," as what it means to do research (in my field, Theoretical CS) seems to be shifting, and shifting fast. What to do? Senior researchers must lead by example, knowing that not everything will pan out. What I'm suggesting below may not work everywhere, but here's my own advice: 1/

Pratyush Mishra reposted

If you have an academic in your life, please be gentle with them this weekend because they're probably freaking the fuck out.

Joseph M. Adelman@jmadelman.bsky.social

Because the 1st is a Saturday, “How is it August already?!” will be observed today, Friday, July 31, 2026. Please panic accordingly.

This is obviously morally stupid. It's also an economic and strategic fail. Intl students: inject money into local economies; are, on avg, pretty strong; and are a captive & paying audience for US viewpoints and propaganda (I'm exaggerating ofc, but only partially) Why lose all that?

Karin Fischer@karinfischer.bsky.social

NEW: The Trump administration is considering levying a $100K fee on optional practical training, the postgraduate work program for international students. It could discourage students, many of whom want work experience in addition to a degree, from coming to the U.S. www.wsj.com/politics/pol...

Pratyush Mishra reposted

Nolan's THE ODYSSEY (2026) is a relatively loose reinterpretation of the original poem, but it makes a deliberate effort to engage with the Trojan War's historical context; the Late Bronze Age Collapse of the 1200s BCE, and the implosion of Mycenaean and Hittite civilization. Let's talk about that.

nathangoldwag.wordpress.comDid Odysseus Cause the Bronze Age Collapse?We were all set for The Odyssey to be our summer discourse. Battle lines had been drawn, takes had been prepared. Christopher Nolan’s adaptation of Homer’s 8th century BCE epic poem was…

Pratyush Mishra reposted

literally these are books that would be pulped if not bought for 10 cents on the dollar. do rare books sometimes make it into there? yeah, if someone is careless, but that's *upstream* of what happens on sale, not *downstream*. you fundamentally are rescuing something from the fucking pulper.

This post is unavailable.

Pratyush Mishra reposted

Replying to @lizthegrey.com

I literally worked on Google Books scanops SRE, ama the same guy who ran Google Books now has the equivalent job at Anthropic and I can promise you that all of us handled every library book with the utmost care, returning them with not even a single ripped page or ding. but destructive scanops...

Pratyush Mishra reposted

What combat did to him - somehow I'm much more concerned about what he did to civilians in the combat zones that he chose to be in, in the dirty wars that he talked about enjoying

The New Yorker@newyorker.com

How much of Graham Platner’s behavior should be read through the lens of what combat did to him, and how much of it is simply who he is, independent of war? www.newyorker.com/news/the-pol...

Pratyush Mishra reposted

Fuck it, we ball!

Adam Aaronson@adamaaronson.bsky.social

Yes, this is real: LeBron James is joining the Sixers. First of several stories coming today on absolutely stunning news: after two bizarre years, the Sixers suddenly have a five-headed monster and real title aspirations. It actually happened. What now?! www.phillyvoice.com/sixers-news-...

Pratyush Mishra reposted

This is Chubbers. He is catching a wave. But more importantly, catching a vibe. 14/10 (IG: nataliepaigebentley)

Pratyush Mishra reposted

Replying to @kimkelly.bsky.social

fuck it, I need to buy some more lidocaine patches, my Venmo is KimMKelly if this interests anyone

Pratyush Mishra reposted

it’s only people who picked the bad language who say both languages have pros and cons

Pratyush Mishra reposted

Wonderful article

John Kelly@mashedradish.bsky.social

Mythic origin of ODYSSEUS given in Odyssey is HATED (BY GODS & MEN). Folk etymology, though heavy with valences. Actual origin? Obscure. Could be Pre-Greek *OD/LUKYEU-, probably referring to some Bronze Age dude who did a thing, hero worship ballooning from there. mashedradish.com/2026/07/18/o...

I got into a conversation with claude to verify the new jacobian conjecture counterexample and deviated into a discussion about how it felt that essentially a twin discovered the proof, but my claude session had no memory of it, and claude's reply was a little saddening

Pratyush Mishra reposted

Domestic and gender-based violence is one of the top predictors of people who are going to be violent in other contexts. Taking domestic violence seriously is part of making a safer world for everyone. And that means no one with a background of DV should ever be in law enforcement.

Jacqueline Sweet@jsweetli.bsky.social

NEW: A second ex-wife of David Brouillette, the ICE agent who killed Joan Durán Guerrero in Maine, Lucinda Brouillette, issued a statement this morning. "If you were to ask me whether I believe David Brouillette is capable of this level of extreme violence, my answer is unequivocally yes." /

Cops really need to be boycotted in every way possible

Sophie Hurwitz@hurwitz.bsky.social

A cop in Wisconsin used Flock to search his ex’s license plate information 200 times. Months later, the officer assigned to investigate him was criminally charged for doing the same thing. www.motherjones.com/politics/202...

Pratyush Mishra reposted

The "liberalism" that plotted underground, stormed the prisons, and executed kings had drive and passion, but they saw themselves in a grand historical struggle between liberty and power. The modern liberalism Klein represents is DEFINED by its hostility to such. It's the Party of Order.

Paul-tergeist Crider@paulcrider.liberalcurrents.com

This is a common refrain, but I don't think it's true, at least not at the moment. The problem is that when liberals *do* advance a positive vision, we're condemned as illiberal by other liberals (when we advance social justice). Or we're dinged as utopians (when we promote, say, open borders).