frontpage.
newsnewestaskshowjobs

Made with ♥ by @iamnishanth

Open Source @Github

Elon Musk outlines AI-led Grok future for advertising on X

https://digiday.com/marketing/elon-musk-outlines-ai-led-grok-future-for-advertising-on-x/
1•mathattack•58s ago•0 comments

Why Conspiracy Theories Never Die, Review of Richard Hofstadter's Paranoid Style

https://medium.com/@guillaume.a.pignol/conspiracy-theories-the-paranoid-style-richard-hofstadters-x-ray-of-the-american-mind-3a50571d361a
1•light_triad•1m ago•0 comments

Show HN: Built my first proper SaaS and got the first customer

https://usesaki.com/
1•askides•2m ago•0 comments

A Treatise on AI Chatbots Undermining the Enlightenment

https://maggieappleton.com/ai-enlightenment/
1•sebg•5m ago•0 comments

AI Is a Time Machine

https://substack.com/home/post/p-170397551
1•muhneesh•8m ago•0 comments

Worktrees: Git's best kept secret (and why you should use them)

https://www.tomups.com/posts/git-worktrees/
1•handfuloflight•8m ago•0 comments

Show HN: GPT5 generated kayak weather forecaster

https://paddlecast.org/
2•kylenessen•9m ago•0 comments

Fallout's Memory Model [video]

https://www.youtube.com/watch?v=6kB_fko6SIg
1•nxobject•14m ago•0 comments

ATM Hacking: Past and Present (HOPE conference next week)

https://hope.net/talks.html
3•RomanPushkin•14m ago•1 comments

Achieving 10,000x training data reduction with high-fidelity labels

https://research.google/blog/achieving-10000x-training-data-reduction-with-high-fidelity-labels/
2•badmonster•15m ago•0 comments

Heretic and Hexen Restored and Updated – Official Launch Trailer [video]

https://www.youtube.com/watch?v=jnzow2f3Rt4
3•nomilk•15m ago•0 comments

Flipper Zero DarkWeb Firmware Bypasses Rolling Code Security

https://www.rtl-sdr.com/flipperzero-darkweb-firmware-bypasses-rolling-code-security/
4•lq9AJ8yrfs•15m ago•2 comments

Genetically tractable non-vertebrate system complete camera-type eye regen

https://www.nature.com/articles/s41467-025-61681-6
1•bookofjoe•16m ago•0 comments

The lawyer who beat Tesla is ready for 'round two'

https://www.theverge.com/tesla/720157/tesla-death-lawsuit-verdict-lawyer-brett-schreiber-interview
4•smy20011•16m ago•2 comments

Photovoltaic, photoluminescent and photometric wireless wearable sensors

https://www.nature.com/articles/s41467-025-60911-1
1•PaulHoule•17m ago•0 comments

Generative Models as Catalysts for Critical Thinking in Higher Education

https://chuahkeeman.substack.com/p/generative-models-as-catalysts-for
2•handfuloflight•19m ago•0 comments

Show HN: (YC S23) OCR that works on the messiest PDFs

https://www.trycardinal.ai/
10•devijha•19m ago•0 comments

Common statistical tests are linear models (or: how to teach stats)

https://lindeloev.github.io/tests-as-linear/
1•sebg•21m ago•0 comments

High Agency

https://www.highagency.com/
1•AnhTho_FR•21m ago•0 comments

79% of OpenBSD kernel source is AMD DRM

https://marc.info/?l=openbsd-misc&m=175313564329081
10•cnst•22m ago•1 comments

Rare events are hard to find

https://jesslgraves.github.io/posts/2025-08-02-rare-events-pt1/#rare-events-are-hard-to-find
2•sebg•22m ago•0 comments

Archaeologists Discover Lost City Inhabited by Maya Resisted Spanish Conquest

https://www.smithsonianmag.com/smart-news/archaeologists-in-mexico-discover-long-lost-city-inhabited-by-maya-rebels-who-resisted-the-spanish-conquest-180987123/
3•ulrischa•23m ago•0 comments

LLM Chess Text Input Benchmark

https://www.kaggle.com/benchmarks/kaggle/chess-text
1•simonpure•25m ago•0 comments

GPT-5's Router: how it works

https://www.latent.space/p/gpt5-router
1•maikakz•27m ago•0 comments

HBO Max to shut down password sharing "aggressively"

https://www.neowin.net/news/bad-news-for-hbo-max-users-the-companys-about-to-shut-down-password-sharing-aggressively/
2•bundie•27m ago•0 comments

Every GPT-5 coding example implemented with Opus 4.1

https://gpt-5-vs-opus-4-1-coding-examples.vercel.app/
5•sgk284•28m ago•1 comments

Alan Sugar of Amstrad Speaks to Practical Computing (1985)

https://computeradsfromthepast.substack.com/p/practical-computing-interviewed-alan
1•whobre•30m ago•0 comments

Cursor CLI

https://cursor.com/cli
14•gonzalovargas•32m ago•2 comments

Show HN: Correct Horse Battery Staple

https://chbs.kripy.com/
1•kripy•32m ago•2 comments

Pre-testing GPT-5 by Claire Vo [video]

https://www.youtube.com/watch?v=NCvW28UY7tk
1•ishita159•35m ago•0 comments
Open in hackernews

Show HN: Student attempt at proving P ≠ NP using geometry and lattices

https://zenodo.org/records/16759468
3•LaghZen•2h ago
Hi everyone,

I’m a student with a strong interest in computer science and complexity theory. Recently, I worked on a manuscript attempting to prove that P ≠ NP.

I know how this sounds — it’s one of the hardest and most debated problems in CS, and many have tried and failed. I don’t claim to have the final answer, but I believe the approach I used might at least offer some fresh perspective or provoke useful critique.

The idea involves geometric separation between deterministic and nondeterministic computation, using high-dimensional lattice constructions and some physics-inspired intuition. The full argument is technical, but I tried to keep it logically structured.

The preprint is 93 pages long. It was originally written in Russian, and I created an English version via machine translation, so apologies in advance for awkward wording or formatting.

DOI and full paper (both languages): https://doi.org/10.5281/zenodo.16759468

I’m genuinely open to feedback — whether it’s pointing out flaws, questioning assumptions, or just explaining why this approach doesn’t work. Any form of critical input is welcome.

If there’s interest, I can also create a short video explanation in simple terms to walk through the core ideas — even though I don’t have a channel or any audience yet.

Thanks in advance for taking the time, even if it’s just to skim or tell me what to fix!

Comments

doormatt•2h ago
Just to clarify, how exactly does proving exponential lower bounds for Algphys translate into a proof that no polynomial time algorithm exists for NP-complete problems in the standard Turing model?

Isn’t it possible that your "hard" instances could be solvable in polynomial time by some algorithm that doesn’t rely on geometric modeling or Hamiltonian dynamics?

How do you justify that every polynomial-time Turing machine algorithm can be modeled as a trajectory in your Hamiltonian system?

LaghZen•1h ago
Hi! Thanks for the question!

1. Algphys is shown to be equivalent to P, meaning any polynomial-time Turing algorithm can be modeled in Algphys. The paper constructs "frustrated" 3-SAT instances requiring exponential time in Algphys due to high combinatorial complexity and spectral properties (e.g., Hessian eigenvalues growing as ~ 2^n). Since Algphys = P, this implies no polynomial-time Turing algorithm can solve NP-complete problems.

2. The equivalence of Algphys and P means any polynomial-time algorithm, regardless of approach, can be modeled in Algphys. The exponential lower bound for these instances in Algphys applies to all polynomial-time Turing algorithms, suggesting these "hard" instances are inherently exponential, no matter the method.

3. The paper establishes P ~ Algphys by mapping Turing machine states to points on a symplectic manifold, with the cost function H encoding computation steps. The Hamiltonian dynamics (γ̇(t) = J∇H(γ(t))) simulate the algorithm’s execution path, ensuring every polynomial-time algorithm corresponds to a trajectory in Algphys.

doormatt•1h ago
Thanks for the reply! Just to clarify, your proof is relying on the assumption that if an algorithm can be modeled in Algphys, then its execution time in Algphys reflects its true time complexity, right? But can you point to where you prove that modeling a polynomial-time Turing machine in Algphys necessarily results in a polynomial-time trajectory in your framework, across all problem instances? Specifically, how do you rule out the possibility that the mapping itself introduces exponential distortion in some cases?
LaghZen•1h ago
Thanks for the follow-up!

Equivalence of P and Algphys: Section 2.3 and Appendix D show any polynomial-time algorithm can be modeled in Algphys with preserved complexity.

Polynomial Mapping: Section 2.2 and Appendix C detail symplectomorphic reductions, ensuring mappings like those for 3-SAT are polynomial-time computable.

No Exponential Distortion: Appendix F (Elimination of Objections) addresses concerns like exponential precision, confirming mappings don’t inflate complexity for polynomial algorithms.

The exponential bounds come from the inherent structure of NP-complete problems, not the mapping itself.