Sam Jaques @sejaques.bsky.social · 01/10/2026Watching people argue with Dan Bernstein online, it's like: you come at the king, you best not miss 100
Sam Jaques @sejaques.bsky.social · 26/09/2026I've long suspected GPUs could speed up the NFS (it's an outlier in mem/processor in HPC and not many people work on it) so I'm excited to see if this also improves at non-$100k-compute scales 031
Sam Jaques @sejaques.bsky.social · 26/09/2026We overproduce and overuse industrial nitrogen not because we need that much nitrogen to feed the world, but because it's necessary for highly-automated capital-intensive farming practices. A quantum computer is (at best!) a bandaid fix for one of the problems this situation creates. 030
Sam Jaques @sejaques.bsky.social · 26/09/2026My narrative: monocultures can be easily mechanized, and modern agriculture is labour-constrained and favours large-scale, capital-intensive techniques. It's an ongoing expense to pay people to harvest crops, but machines are mostly a one-time capital expense. 100
Sam Jaques @sejaques.bsky.social · 26/09/2026If we believe doi.org/10.14237/ebl..., the three sisters produce 12 mega-calories/hectare; modern corn (with industrial fertilizer!) gets about 16 (and the three sisters give you the nutrients of beans and squash!). Why not just plant the three sisters and forget industrial fertilizer?doi.org Food Yields and Nutrient Analyses of the Three Sisters: A Haudenosaunee Cropping System | Ethnobiology Letters 110
Sam Jaques @sejaques.bsky.social · 26/09/2026The linked post explains that even the basic physical premise might be wrong (bacteria might *less* efficient than industrial processes). But we've known how to match the efficiency of bacteria for centuries: get bacteria to do it. Indigenous Americans used "The Three sisters" (corn, bean, squash) 120
Sam Jaques @sejaques.bsky.social · 26/09/2026I'll rant even more about FeMoCo: plants need nitrogen in the form of ammonia or nitrate. Industrial agriculture produces these but it's energy-intensive. Symbiotic bacteria do it quite efficiently; can we decipher their enzymes (via FeMoCo), copy what they do, and save a bunch of energy? 100
Sam Jaques @sejaques.bsky.social · 26/09/2026Will quantum computers actually outperform classical techniques on real chemistry problems, and even if they do, will it matter? Great read: quantumfrontiers.com/2026/03/12/t...quantumfrontiers.comThe FeMo-cofactor and classical and quantum computingRecently, my coworkers and I put out a preprint “Classical solution of the FeMo-cofactor model to chemical accuracy and its implications’’ (Zhai et al. 2026). It is a bit unusual to write comm… 141
Reposted by Sam JaquesFaine Greenwood @faineg.com · 31/07/2026I used to do some work on the ethical use of satellite and drone imagery for aid and disaster response, and it is genuinely hard to express in words what a dangerous, stupid thing Google is doing by making it easy to use GenAI to create faked satellite imagery:digitaldigging.orgHow to plant a nuclear plant in IranThe question is: what on earth is Google doing? 742393894
Sam Jaques @sejaques.bsky.social · 28/07/2026"you fucked up a perfectly good Markov chain is what you did. look at it. its got anxiety" 110
Reposted by Sam JaquesePrint Updates @eprint.ing.bot · 23/07/2026The supersingular isogeny problem in time and memory p^(1/3 + o(1)) (Benjamin Wesolowski) ia.cr/2026/1486 01511
Sam Jaques @sejaques.bsky.social · 23/07/2026(technically it's a mini split heat pump, but those are also undeniably air conditioners) 020
Sam Jaques @sejaques.bsky.social · 23/07/2026Genuinely why are Europeans so scared of air conditioning? This is in a hotel in England. The thing on the wall is undeniably an air conditioner. 120
Sam Jaques @sejaques.bsky.social · 22/07/2026I'm realizing that I haven't given boomers enough credit for living through the ongoing threat of nuclear annihilation and staying mostly sane 020
Sam Jaques @sejaques.bsky.social · 09/07/2026Looks amazing! I have minor quibbles (who wouldn't?) but this has so many advantages over the current system 040
Sam Jaques @sejaques.bsky.social · 02/07/2026(3) knowing the structure of the system, researchers and funders can coordinate research agendas without any explicit communication, and disclosure rules incentivize them to do this I'm sure there's more, as well 010
Sam Jaques @sejaques.bsky.social · 02/07/2026To spell it out: (1) even if all parties are scrupulously honest, the PR firm's money exerts strong pressures on what gets done (2) anonymity is easy to break and impossible to repair 110
Sam Jaques @sejaques.bsky.social · 02/07/2026If you have only a basic understanding of how corruption works, this situation looks fine, if not ideal ("more money for research, no strings attached! yay!") 210
Sam Jaques @sejaques.bsky.social · 01/07/2026Impossible is a strange word here. My parents' house's windows don't really fit a window unit, but they have them anyway, with big plastic pieces cut to fit around the unit to seal up the window. 110
Sam Jaques @sejaques.bsky.social · 26/06/2026Great example here: Europeans in comments inventing excuses not to do something USA does effortlessly bsky.app/profile/tech... 010
Sam Jaques @sejaques.bsky.social · 17/06/2026reskeet if your h-index is, apparently, greater than Lov Grover 000
Sam Jaques @sejaques.bsky.social · 17/06/2026Whatever prankster set this up is my hero: scholar.google.com/citations?us... 110
Reposted by Sam JaquesPhilipp Muens @muens.io · 01/06/2026Wow! Alfred Menezes just published this 182 page "A Gentle Introduction to Lattice-Based Cryptography" paper. I just skimmed through it, but it looks like an invaluable resource if you want to study lattices and how they're used in (PQ) Cryptography. eprint.iacr.org/2026/1098eprint.iacr.orgA gentle introduction to lattice-based cryptographyWe present the quantum-safe Kyber key encapsulation mechanism (ML-KEM) and the Dilithium signature scheme (ML-DSA). We also develop the mathematical background on lattices needed to understand why Kyb... 1147
Sam Jaques @sejaques.bsky.social · 28/05/2026Me: hmm, what's the plural word for emeritus professors? My brain: Emiratis! Me: ... close enough 051
Sam Jaques @sejaques.bsky.social · 18/05/2026Was there ever much of a real market for legitimate Bitcoin users wanting to send cash to a Bitcoin address at a local convenience store? 010
Reposted by Sam JaquesCaitlin G. DeAngelis @caitlindeangelis.bsky.social · 14/05/2026Recently, FamilySearch digitized and uploaded tons of microfilmed records, including many from 18th-century Massachsuetts. They're using some sort of AI to transcribe/summarize the handwritten documents. I've noticed that the AI strips out references to race and enslavement in 18thc documents. 9235481780
Sam Jaques @sejaques.bsky.social · 14/05/2026I got asked "which makes a sound when plucked" and one was a picture of a construction crane, and, having half an ounce of imagination... 020
Reposted by Sam JaquesKevin Riggle @kevinr.free-dissociation.com · 13/05/2026I see that the new MacOS Tahoe 26.5 update releases *EIGHT* new emojis from Apple's strategic emoji reserve. Folks, I'm gonna go out on a limb and say that this is a software update that you really want to take somewhat urgently 22810
Sam Jaques @sejaques.bsky.social · 13/05/2026The privacy concern is still there: if the log files were sensitive, now Google has that data 110
Sam Jaques @sejaques.bsky.social · 13/05/2026Underrated Linux usability barrier: "I have this problem, how do I fix it?" "Post the log file and I can help" Then the log file is thousands of inscrutable lines that may or may not contain sensitive data about how you use your computer, that you as a beginner cannot understand 140
Sam Jaques @sejaques.bsky.social · 10/05/2026TIL moka pots follow a much different price:size function than I expected 010
Sam Jaques @sejaques.bsky.social · 06/05/2026I don't expect to win the political battle against age verification (honestly I'm not sure I even want to). I do hope I could push for good cryptography to make the privacy-reliability tradeoff better 100
Sam Jaques @sejaques.bsky.social · 06/05/2026I'm not convinced there is *no* way to defeat proxies, esp. if our goal is high-but-not-perfect reliability. But these aren't new problems with anonymous credentials. My original question was where the state-of-the-art is, essentially 300
Sam Jaques @sejaques.bsky.social · 06/05/2026If the government issues my anonymous credentials, they already have my passport. Even in private hands, a few issuers can be held to stringent data handling regulations that would be impractical to enforce on *every* company 000
Sam Jaques @sejaques.bsky.social · 06/05/2026Bad terminology, maybe, but I mean something like: can you verify age to access social media without uploading a photo of your passport? 200
Sam Jaques @sejaques.bsky.social · 06/05/2026Do you know who/what is leading in terms of cryptographic, privacy enhancing identification technologies? 100
Sam Jaques @sejaques.bsky.social · 29/04/2026One of the benefits of travelling is seeing other cultures coordinate to effortlessly do something your culture thinks is impossible 110
Reposted by Sam JaquesAlex Wellerstein @wellerstein.bsky.social · 17/04/2026On DOOMSDAY MACHINES, this week I dive into the idea of “atomic bombs” before the discovery of nuclear fission made them actually feasible. I’ve long thought it makes for an interesting case study — a fateful intersection of scientific fact and science fiction. doomsdaymachines.net/p/strange-ev...doomsdaymachines.net"Strange even to the men who used them""Atomic bombs" before the discovery of fission 03614
Reposted by Sam JaquesFredrik Dahlgren @fegge.bsky.social · 17/04/2026Two weeks ago, Google published a paper proving in zero-knowledge that they had an efficient implementation of Shor's algorithm. Today, Trail of Bits can prove that we have an even better implementation which beats Google's on all metrics! 🫢 blog.trailofbits.com/2026/04/17/w... 18230
Sam Jaques @sejaques.bsky.social · 10/04/2026Yeah they got a bit of a roasting on scirate over that. Though their 10,000 qubit ECC is only 1000 days. I still didn't include it because (a) 1000 days already gets us to 2029; (b) by the time they finish a computation that long, I suspect another company could build a 26,000 qubit machine 171
Sam Jaques @sejaques.bsky.social · 09/04/2026Overdue quantum landscape update: sam-jaques.appspot.com/quantum_land... A 2d chart can only say so much. tl;dr new results are still overhyped, but definitely worth taking seriously. This chart is based on surface codes and a big question now is whether new codes can be practical (=>useless chart) 15122
Sam Jaques @sejaques.bsky.social · 02/04/2026Ah okay, like if I had an encoded circuit and wanted to measure the X value, I can do it just fine by measuring X on all physical qubits. And in any intro qc course it's explained that "measure-X" projects onto |+/-> (which Stim does!), but this assumption breaks for the code; we need state prep 000
Sam Jaques @sejaques.bsky.social · 02/04/2026If the "transversal" X measurement doesn't preserve the codespace, in what sense is it transversal? 100
Sam Jaques @sejaques.bsky.social · 18/03/2026Hot take: IACR submission guidelines should eliminate appendices, bump the page limit to 70 pages, but have an earlier deadline for any paper longer than 30 pages 220
Reposted by Sam JaquesNadim Kobeissi @nadim.computer · 12/03/2026I was deeply humbled by the unbelievably positive reaction to my talk at Real World Crypto 2026 in Taipei about my experiences teaching applied cryptography in post-crisis Lebanon. The full video for the talk is now available: www.youtube.com/watch?v=z_Hx...youtube.comReal World Crypto 2026: Lessons from Teaching Applied Cryptography in Post-Crisis LebanonYouTube video by Nadim Kobeissi 2243