PM Modi Red Fort Speech: अभिजीत दीपके ने अब कौन सी ऑनलाइन मुहिम छेड़ी, पीएम के 13वें भाषण में क्या खास होगा?

PM Modi Red Fort Speech: अभिजीत दीपके ने अब कौन सी ऑनलाइन मुहिम छेड़ी, पीएम के 13वें भाषण में क्या खास होगा?---CJP Founder Abhijeet Dipke Urges PM Modi to Address Youth on Education, Jobs in Independence Day Speech

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New top story on Hacker News: U.S. Department of Energy Launches the Genesis Open Models Initiative

U.S. Department of Energy Launches the Genesis Open Models Initiative
6 by moelf | 3 comments on Hacker News.

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Explainer: सुप्रीम कोर्ट में जजों की संख्या बढ़ाने वाले विधेयक पर बवाल क्यों, कानून से कितनी बदलेगी व्यवस्था?

Explainer: सुप्रीम कोर्ट में जजों की संख्या बढ़ाने वाले विधेयक पर बवाल क्यों, कानून से कितनी बदलेगी व्यवस्था?

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New top story on Hacker News: Spin audit of SQD/QSCI quantum-chemistry benchmarks on iron–sulfur clusters

Spin audit of SQD/QSCI quantum-chemistry benchmarks on iron–sulfur clusters
3 by purestatelabs | 0 comments on Hacker News.
Author here. Background, for anyone who hasn't followed this fight: IBM's iron–sulfur SQD results (Sci. Adv. 2025) are one of the flagship "quantum computers are useful for chemistry now" claims, and a published critique (arXiv:2501.07231) argues the quantum samples never beat classical selected-CI at matched cost. That argument is still live. Both sides have been arguing about energies. Neither measured which electronic state these calculations actually converge to. So I measured it. ⟨S²⟩ comes out between 4.7 and 7.0 depending on the system and the subspace size, where the target these papers name is a singlet at ⟨S²⟩ = 0. Every starting guess I tried lands in the same place, and the error at convergence is about the size of the spin-state ladder itself, which is the physics under dispute. IBM ships a mitigation for this. Run exactly as shipped, using their driver, their recovery loop and their own spin_square() diagnostic, it moves the ground energy by under a nanohartree while making the subspace 4.00x bigger: 194,481 determinants against 48,600. It makes a singlet representable. It never produces one. Their solver also takes a spin_sq argument that would target the singlet directly, and the default pipeline never sets it. I filed that narrow part on their tracker yesterday, before posting this: https://ift.tt/JGYLnd8 . A maintainer answered and closed it the same day, and his answer is the useful part. The flag, in his words, augments the sampled subspace by using alpha CI strings as beta strings and vice versa. That is a statement about which determinants span the space, not about what spin the returned state comes out in, which is exactly what the measurement says. He did not contest the numbers. The second question, whether the default path is meant to reach spin_sq at all, is still unanswered. The obvious objection is that this is all my own reimplementation, so here's the part that isn't. IBM's data-availability archive for the flagship paper contains the raw hardware measurement records: 2,457,600 shots on [2Fe-2S] from December 2023, 3,163,742 outcomes on [4Fe-4S] from April 2024, plus the integrals and the optimized circuit's parameters. Running their shots through their own pipeline, [2Fe-2S] reaches low ⟨S²⟩ but sits 248 mHa off their own reference, and [4Fe-4S] converges to a spin-pure triplet, Var(S²) = 3e-6, a genuine S=1 eigenstate: a clean state, and the wrong one, 1,438 mHa from their reference. Two things in that archive need no analysis from me at all. Their uniform-random null control matches or beats the hardware samples in every published [2Fe-2S] comparison. And their largest [4Fe-4S] runs, at subspace dimension 10⁸, trail their own classical HCI file by 149 mHa. On the AI angle, since that's half of why this is on HN: Claude did the initial audit end to end in about 72 hours under my direction, and it's been through many rounds of adversarial review since. The part I'd defend as actually interesting isn't the speed. It caught five defects in its own work through pre-registered validation gates, one of them by cross-checking against IBM's own published energy tables, and it retracted its own strongest pro-quantum finding when the new instrument showed that result was a spin-sector artifact. AUDIT_TRAIL.md has the timeline. REPRO_MAP.md maps every claim to a file and a command that regenerates it. If you want to kill this, and I mean that, here's how. Exhibit any state in a spin-completed ground manifold of these benchmarks with ⟨S²⟩ < 1. Or show me a quantum-sampled subspace at matched determinant count whose spin-identified energy beats HCI or CIPSI. Or get any shipped-pipeline run on IBM's archived samples to land ⟨S²⟩ < 1 and error under 50 mHa at once, with no spin penalty. The harness is in the archive and I'll publish whatever comes back, including if it's me who's wrong. Preprint: https://doi.org/10.26434/chemrxiv.15006382/v1 The limitations section is real: comparison dimensions are fixed, the [4Fe-4S] reference is approximate, and the 58.6M "samples" file is deduplicated, so the shot-level distribution of their optimal-circuit numerics isn't publicly auditable. It's short. Worth reading before the hot take.

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Explainer: एफसीआरए संशोधन पर क्यों उठ रहे हैं सवाल? क्या हैं नए नियम और सरकार का क्या है पक्ष?

Explainer: एफसीआरए संशोधन पर क्यों उठ रहे हैं सवाल? क्या हैं नए नियम और सरकार का क्या है पक्ष? Why Is the FCRA Amendment Facing Criticism? What Are the Proposed Changes and the Govt's Stand?

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New top story on Hacker News: Pi's Minimalism Is Its Advantage

Pi's Minimalism Is Its Advantage
16 by luispa | 2 comments on Hacker News.

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New top story on Hacker News: Frame selection is the whole game: notes on making LLMs watch video

Frame selection is the whole game: notes on making LLMs watch video
4 by cortexosmain | 0 comments on Hacker News.

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बिहार की राजनीति में खुला नया विकल्प: बांकीपुर से प्रशांत किशोर की जीत बड़ा उभार, क्या NDA-RJD के लिए संदेश?

बिहार की राजनीति में खुला नया विकल्प?: बांकीपुर से प्रशांत किशोर का उभार, NDA-RJD दोनों के लिए बड़ा संदेश---Prashant Kishor Open a New Political Alternative in Bihar Bankipur Bypoll Sends Big Message to NDA and RJD

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Weather Forecast 04 Aug 2026: देखिए क्या है आपके यहां मौसम का हाल | Weather Report Today

Weather Forecast 04 Aug 2026: देखिए क्या है आपके यहां मौसम का हाल | Weather Report Today

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Explainer: दुनिया के पर्यावरण प्रदर्शन सूचकांक में भारत कहां, सुधार के लिए सरकार कर रही कौन से प्रयास?

Explainer: दुनिया के पर्यावरण प्रदर्शन सूचकांक में भारत कहां, सुधार के लिए सरकार कर रही कौन से प्रयास?  Where Does India Rank in the Global Environmental Performance Index, and What Is the Government Doing to Improve It?

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New top story on Hacker News: Show HN: Mu – Tools for Agents

Show HN: Mu – Tools for Agents
7 by asim | 1 comments on Hacker News.

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Top News: 13 स्वर्ण पदकों के साथ भारत CWG पदक तालिका में चौथे स्थान पर; CJP को विदेशी फंडिंग की जांच तेज

Top News: 13 स्वर्ण पदकों के साथ भारत CWG पदक तालिका में चौथे स्थान पर; CJP को विदेशी फंडिंग की जांच तेज

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New top story on Hacker News: Anime User Interfaces

Anime User Interfaces
25 by akyuu | 3 comments on Hacker News.

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