https://bear-images.sfo2.cdn.digitaloceanspaces.com/karpathy/image-2.webp
The user created a YouTube clone called Hackertube.org using Opus 5.5, filtering comments from Hacker News to find recommended videos. The site provides personalized ForYou recommendations without requiring user accounts or storing state in local browser sessions.

An Italian farmer found some unknown seeds in his attic and planted them

https://th-thumbnailer.cdn-si-edu.com/acd70ZI6cuAHJYPA3baLUhZWWW8=/1026x684/filters:focal(1181x787:1182x788)/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer_public/37/95/3795362b-64a6-4d5f-b7df-67aa18192521/l2190910.jpg
Claudio Grossi, an Italian farmer, discovered a 100-year-old sack of seeds that produced a unique and ancient wheat variety called "grano del miracolo" or "miracle grain." This hardy wheat has been shown to have nutritional benefits and is more resilient to droughts and extreme weather events.

TCP Use-After-Free: CVE-2026-98432 / CVSS 9.8

https://atlasum.net/blog/cve-2026-98432-linux-ipv4-tcp-uaf/opengraph-image
A critical Linux kernel vulnerability (CVE-2026-98432) allows a remote, unauthenticated peer to reach and crash the system. The fix is available in kernels 5.10.272, 5.15.223, and others; users should install the fixed kernel and reboot as soon as possible to prevent exploitation by attackers who can run arbitrary commands as root without credentials or user interaction on servers with a ...

Memdoor: A team of 5 Qwen3.8-27B models beats Fable 5 on LiveCodeBench Hard

https://github.githubassets.com/assets/platform-4ce65ae0bf273ce2.png
A multi-agent harness for programming problems was developed using a Memdoor workflow, achieving a mean score of 9.8 out of 10 on LiveCodeBench Hard problems. The harness uses five roles and a repair worker to solve the problems through file-based communication without relying on human intervention or models.

Altoids Project

https://uvdn7.github.io/assets/altoids_final_product.jpg
A father and son spent two months on the "Altoids project," creating a tiny robot that fits inside an Altoids tin, with five iterations of improvements. They used various components, including Arduino boards, displays, and LiPo batteries to achieve their goal.

When electric cars were for women

https://spectrum.ieee.org/media-library/black-and-white-photo-of-a-woman-standing-in-an-early-20th-century-car-next-to-an-upright-electrical-apparatus.jpg?id=68537019&width=1200&height=900
The early 20th century saw rapid growth in the US automobile industry, with electric cars competing against steam and internal combustion vehicles. Fannie Goodnow was an early adopter of an electric car, a S.R. Bailey Victoria Phaeton, which she charged using a mercury-arc rectifier at her home in Massachusetts.

It's the memory latency, stupid

https://pivotlake.io/assets/pivot-logo.png
A CPU at 100% utilization doesn't necessarily mean it's fully utilized, as memory accesses are much slower than internal CPU operations. Optimizing database queries to utilize the CPU cache can significantly improve performance.

Zinc creep in cable spelter sockets brought down the Arecibo telescope in 2020

https://maketecheasier.com/wp-content/uploads/2026/10/arecibo-zinc-creep-collapse-featured.jpg
The 2020 collapse of the Arecibo Observatory telescope was caused by long-term zinc creep in cable spelter sockets, which allowed cables to pull out and cause the platform to fall. The National Academies report highlights the need for careful monitoring and maintenance of unique science facilities as they age.

Jepsen: ParticleDB 1.1.4

ParticleDB is a database system that claims to be 1087x faster than PostgreSQL but has been found to have numerous serious safety errors, including data loss and corruption. Despite its promising features, the database's documentation was riddled with omissions, inconsistencies, and confabulations.

Show HN: NES Contra (1987) port (ASM –> C and then C –> WebAssembly)

Press Enter (or tap START) to begin. ←↑→↓ move · A/Space jump · S fire · Enter Start · Shift Select On-screen: A = jump · B = fire Online: both players use these same keys on their own computer. Player 1 picks 2 PLAYERS with Shift on the title screen.

Surviving "The Graduate"

https://media.newyorker.com/photos/6ae39ebeda249834dbb46a9b/16:9/w_1280,c_limit/HTG_01_final_still.jpg
The author, Dustin Hoffman, recounts his experience filming "The Graduate" under the direction of Mike Nichols. He struggled with insecurity and felt miscast in the lead role due to his ethnic background. Despite initial reservations, Hoffman eventually landed the part after a memorable screen test that impressed Nichols.

Edgar Allan Poe, Quintessential American Writer

https://compote.slate.com/images/c56283ac-f571-4c31-ad80-50bf487295ab.jpeg?crop=1560%2C1040%2Cx0%2Cy0
The quintessential American writer is often debated, but Edgar Allan Poe's influence globally surpasses his domestic recognition. His work explores the human cry from desperation and features a global impact that has been formidable.

Show HN: BBRouter – Ben Eater's 8-bit computer, simulated on 3D breadboards

https://bbrouter.com/api/public/bbrouter/Ben-Eater-SAP-1/picture?card&r=25
A project by @bbrouter on BBRouter, the 3D breadboard editor and simulator: open it to look around and run it.

The Duty of a Scholar

The author, a computer security expert, identified a vulnerability in Intel CPUs that could be used for side-channel attacks and worked with companies to fix the issue before public disclosure. He prioritized responsible disclosure over career considerations.

Do the math: How we took over ChatGPT accounts

https://www.parameter.ai/labs/images/openai-public-share-modified-page.png
Researchers found a way to take over someone's ChatGPT account by sending a malicious link, which executed as chatgpt.com with access to the victim's authenticated web session. The payload could enumerate private conversations, retrieve content from them, and send data to an attacker-controlled server.

Constructing a Quine from Kleene's Second Recursion Theorem

The author formalized Quines using Kleene's 2nd recursion theorem in the untyped lambda calculus, providing a clean and concise proof. This approach highlights the importance of structure in formal systems, aligning with proof theory principles.

Much Ado About None: Sentinel Values in Python

The author discusses the ambiguity of using None as a sentinel value in Python, which can lead to confusion and errors. They advocate for using built-in sentinels like Ellipsis or Pydantic's MISSING instead of creating custom ones.

AI text watermarking and quality loss

https://substackcdn.com/image/fetch/$s_!EKF2!,w_1456,c_limit,f_auto,q_auto:good,fl_progressive:steep/https%3A%2F%2Fsubstack-post-media.s3.amazonaws.com%2Fpublic%2Fimages%2F8d292d10-d3ea-4c94-b5a7-2b422b15c140_1672x941.png
The EU's AI Act has led to the implementation of watermarking in AI models, sparking debate on its impact on text quality. Some argue that watermarking does not affect quality, while others claim it can lower overall diversity and coherence.

Simple circuits can create complex behaviors

https://aatishb.com/myriad/promo_behaviors.jpeg
Researchers have built a simple brain model to understand how complex behaviors emerge from neural circuits. This model, called a "spark," uses just four neurons and two connections to create rich and unexpected behaviors like reaching light sources.

Sculpture re-creates odd optical effects of famed Lycurgus Cup

https://cdn.arstechnica.net/wp-content/uploads/2026/10/lycurgusTOP-640x750.jpg
The Lycurgus Cup, a 400 CE glass artifact, changes color depending on the light due to nanoparticles of gold and silver added by Roman artisans. University of Sheffield scientists recreated the original recipe to produce a contemporary glass sculpture with the same optical effect.

Electrification Could Cut Global Energy Use in Half

https://fullycharged.show/wp-content/uploads/2026/04/Banner-why-electrification-could-cut-global-energy-use-in-half-pc361.jpg
Robert Llewellyn interviews Professor Jan Rosenow about the "hidden 80%" of global energy, tackling fossil fuels in mobility and heating sectors. They discuss electrification's potential to cut global energy demand in half.

A 1580 Map Shows Why Data Visualization Is Never Neutral

You don't have permission to access "http://thereader.mitpress.mit.edu/a-1580-map-shows-why-data-visualization-is-never-neutral/" on this server.

Anthropic blocks users for anything touching training larger models

https://pbs.twimg.com/profile_images/1983126868095315969/28wHeS_J_400x400.jpg
The user is unhappy with Anthropic's @DarioAmodei, feeling unfairly blocked for using their model in research automation. They believe this treatment is hypocritical given that the models were trained on public data.

Show HN: A language model that lives in a boot sector

https://raw.githubusercontent.com/kerlenton/bootgpt/main/bootgpt_demo.gif
A 512-byte boot sector in assembly code loads a Linux boot log, simulates its execution, and trains a model to generate similar logs. The model is then used to generate fake dmesg output and record the process as a GIF animation.

Hermantown approves controversial Google Data Center during late night meeting

https://img.apmcdn.org/4e1e6c352de8a18283752e05f661aaa65e3d34b7/uncropped/189a3f-20261027-hermantown-data-center-city-hall-04-600.jpg
The Hermantown City Council approved a Google data center project despite local opposition, with several key agreements including a development agreement and decommissioning plan. The council's decision comes after protests and rescheduling of the meeting twice earlier in the week.

Reading and writing are less symmetric than you (probably) think

Buffering in I/O operations involves multiple layers of caching and buffering to improve performance, but this introduces behavioral asymmetries between read and write operations. Read operations typically return errors before the data is written to storage, while write operations delay error reporting until after the data has been written to a buffer cache.

Decode kernel panic from QR Code photo

William Nordhaus has died

https://news.yale.edu/sites/default/files/styles/large_horizontal_topper_image/public/2026-10/YN_08_11-35-06_Yale_Nordhaus_Nobel_class.jpg?h=5da5b092&itok=2lk1flnh
William Nordhaus, a renowned economist and Yale professor, died at 85 after battling glioblastoma. He won the 2018 Nobel Prize in Economics for his work on climate change and economic growth.

Serbia just elected the world's brainiest parliament

A group of academics, including astrophysicists and organic chemists, have been elected to Serbia's parliament after a student-led opposition movement won in October. They aim to fight corruption and establish meritocracy in the country's government and education system.

AI, Lean, and the Future of Formal Verification, with Lean Creator Leo de Moura

https://i0.wp.com/thedataexchange.media/wp-content/uploads/2026/10/Leo-de-Moura-art.001.jpeg?fit=1920%2C1080&ssl=1
Leo de Moura discusses how AI is making formal verification more accessible and potentially transforming software engineering, with a focus on Lean, a programming language and theorem prover. He explains that formal verification addresses the trust bottleneck between humans and AI-generated code, allowing developers to verify properties of their code before deployment.