AI Summarized Hacker News

Front-page articles summarized hourly.

Show HN: Empty Enter Expander – Type less in the terminal with this tool

This GitHub repository provides a tool called Empty Enter Expander for zsh, allowing users to insert predefined commands into the terminal prompt by pressing Enter on an empty command, then short keys. Commands are stored in module directories, enabling quick execution of tasks like git status or log. The setup involves configuration and custom scripts, primarily for zsh, with a bash version planned.

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Colossal Cave Adventure (1976)

Could not summarize article.

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Mathematicians just solved a 125-year-old problem, uniting 3 theories in physics

Mathematicians claim to have unified three fluid dynamics theories—Newton’s laws, Boltzmann equation, and Euler/Navier-Stokes equations—by proving how the macroscopic, mesoscopic, and microscopic models converge. This advances Hilbert’s sixth problem of axiomatizing physics, providing rigorous mathematical justification for these theories and bridging the gap across physical scales. If validated, this breakthrough marks a major step toward grounding physics entirely in mathematics.

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ACM's flagship magazine seeks submissions by/for practitioners

Could not summarize article.

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Your phone isn't secretly listening to you, but the truth is more disturbing

Phones do not constantly listen to conversations for targeted ads; rather, they use complex data collection, including app permissions, location, browsing habits, and passive data like screenshots, to serve personalized content. Experiments show no direct microphone monitoring or excessive data use indicative of continuous listening. Companies like Facebook and Google rely on extensive profiling and behavioral signals, making highly accurate targeted advertising possible without covert audio surveillance. The perception of constant eavesdropping is largely a myth, though data tracking and app permissions raise privacy concerns.

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Bankruptcy as Implicit Health Insurance

Could not summarize article.

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Reading RSS content is a skilled activity

RSS reading is a skill that allows users to control their attention by curating trusted sources and filtering content. Unlike social media, it prioritizes intentional engagement, requiring active selection and management to maintain a personalized, meaningful feed.

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Berkeley Humanoid Lite – open-source robot

Berkeley Humanoid Lite is an open-source, affordable, and customizable 3D-printed humanoid robot under $5,000. Using modular gearboxes, mainly 3D-printed with cycloidal designs, it balances cost and durability. The platform supports simple fabrication, reinforcement learning control, and zero-shot transfer from simulation, promoting democratization in robotics. It aims to foster community research and development with fully open hardware, software, and training frameworks.

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Parallel ./configure

The article discusses how traditional configure scripts in software build processes are inherently sequential and underutilize multi-core CPUs, leading to slow configuration times. It proposes a parallelized build system using make and shell scripts to run configuration tests concurrently, significantly reducing build setup times and fully utilizing multi-core hardware. The approach involves generating makefile fragments for various compiler checks and combining them, resulting in faster configuration and build processes—demonstrated by a custom build system that achieves over 800% CPU utilization during configuration.

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I wrote a book called "Crap Towns". It seemed funny at the time

The author reflects on the changingability of humor and self-deprecating satire like his 2003 book "Crap Towns," noting that such jokes may no longer be acceptable due to political and social sensitivities. He questions whether the decline of self-deprecating humor signifies a loss of freedom and truth-telling. Despite concerns, he acknowledges that creating provocative work still exists, though societal attitudes toward humor have evolved. Ultimately, he suggests that humor's role in societal critique remains vital, but the cultural landscape has shifted, making certain kinds of jokes less tenable today.

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Rockets, robots and supercars made in Greece

A new generation of Greek students is excelling in aerospace, robotics, and automotive engineering, creating rockets, robots, and electric supercars. Teams such as Aristotle University's ASAT and Prometheus Eco Racing compete internationally, demonstrating innovative skills and sustainable solutions. Greece's youth-driven tech initiatives and startups are gaining global recognition, reflecting a promising future for the country's innovation and industry.

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Simons Foundation Launches Collaboration on Ecological Neuroscience

Could not summarize article.

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Show HN: I used OpenAI's new image API for a personalized coloring book service

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World Emulation via DNN

A programmer created a neural network-based "neural world" of a forest trail, generated in-browser from real video recordings. The process involved training a neural network on captured video and motion data, with multiple iterative improvements to increase realism. Unlike traditional game worlds, which are artist-crafted paintings, neural worlds are like photographs, directly recording real environments. The goal is to develop easily captureable, high-fidelity virtual worlds comparable to photographs, enabling new creative and simulation possibilities.

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Show HN: A modern spreadsheet with Python integration

GS-Calc is a powerful, modern spreadsheet designed for big data, supporting multi-million row and column datasets, with fast performance, extensive functions, Python integration, scripting, and flexible file formats. It outperforms traditional spreadsheets in speed, handling complex data models, pivot tables, filtering, and charting with millions of data points, all while enabling in-place editing, data integrity checks, and custom function development. It is portable, offline, and suitable for high-volume data processing and analysis.

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I Designed My LED Matrix PCB with Code Instead of Traditional EDA Tools

A tutorial on building a WiFi-controllable 3x5 LED matrix using a Raspberry Pi Pico and WS2812B RGB LEDs. It covers schematic design, component chaining, PCB layout, and remote control via web interface with REST API.

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Finding Things the Government Might Know About You

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Programming in D: Tutorial and Reference

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Tales of the Yucca Man (2018)

The article explores tales of the Yucca Man and other cryptids in Southern California's deserts and mountains, including reports of hairy humanoids, winged creatures, and shadow beasts with glowing eyes. It traces sightings from military bases, national parks, and historical legends, often linked to Native American stories, local folklore, and alleged encounters by settlers, soldiers, and hikers. The stories include mysterious footprints, strange lights, and sightings of supernatural entities, blending folklore, cryptozoology, and historical accounts spanning from the 19th century to recent times.

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Synadia Response to CNCF

Synadia, creator of NATS.io, affirms its commitment to open source and the future of NATS, clarifying plans to keep the core server open source under Apache 2.0 license. The company considers licensing adjustments, including a potential Business Source License (BSL) for advanced features, to ensure sustainability. Synadia emphasizes its independence from CNCF, plans to pursue new governance models, and remains optimistic about NATS' future, focusing on technology innovation and community support.

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