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A Fast, Growable Array with Stable Pointers in C

news.ycombinator.com Unknown 2025-12-09 18:21:28

August 5, 2025・6 minute read My last article about generic data structures in C was written to set the stage for today’s topic: A data structure that can be used in place of dynamic arrays, has stable pointers, and works well with arena allocators. It’s been independently discovered by different programmers over the years and so goes by different names. A 2001 paper called it a “levelwise-allocated pile” (bleh). Others call it an “exponential array”. I use the name “segment array”. I use C in

Topics: array items sa segment segments

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Companies Find Potential Way to Avoid Trump Tariffs and Keep Prices Low

gizmodo.com Lucas Ropek 2025-12-09 18:35:50

Donald Trump’s tariff regime has been scoffed at by business leaders and world economists (Larry Summers, for instance, called it both “crazy” and “dumb”), but the White House hasn’t backed down from its highly unconventional program. The tariffs, which are taxing American businesses on their imports, are reportedly generating billions of dollars in revenue for the federal government on a month-to-month basis. Many businesses aren’t happy about it, however, and now several lawsuits are threateni

Topics: administration businesses government tariffs trump

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OpenAI Announces Massive US Government Partnership

wired.com Zoë Schiffer 2025-12-10 04:48:11

OpenAI is partnering with the US government to make its leading frontier models available to federal employees. Under the agreement, federal agencies can access OpenAI’s models for $1 for the next year, per a Wednesday announcement from the company and the General Services Administration (GSA). The partnership is the culmination of months of effort on the part of OpenAI CEO Sam Altman and other OpenAI executives, who have been cozying up to the Trump administration since before President Donald

Topics: agencies ai government openai trump

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Tim Cook expected at White House event, Apple ‘largely unaffected’ by India tariffs

9to5mac.com Zac Hall 2025-12-10 09:50:37

Two quick updates to a couple of stories from this morning involving Apple, the Trump administration, and increased India tariffs. First, CNBC reports that the $100 billion U.S. investment increase (over four years) announcement is currently scheduled for 4:30 ET today. Apple CEO Tim Cook is expected to appear alongside President Trump at what is said to be a televised event out of the Oval Office at the White House. It’s no coincidence that Apple will reportedly be “largely unaffected” by the

Topics: announcement apple increase tariffs trump

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Apple to announce $100B further commitment for US manufacturing

techcrunch.com Dominic-Madori Davis 2025-12-10 08:30:45

In Brief Apple plans to increase its commitment to U.S. manufacturing, according to a White House official cited and first reported by Reuters. The tech giant is set to announce Wednesday another $100 billion in spending to help boost production of its products here in the U.S., after previously committing to invest $500 billion in the country over the next four years. The $500 billion commitment includes opening a new advanced manufacturing facility in Houston to produce servers that support

Topics: 500 apple billion commitment manufacturing

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Citizen Lab director warns cyber industry about US authoritarian descent

techcrunch.com Lorenzo Franceschi-Bicchierai 2025-12-10 09:01:00

The director of Citizen Lab, one of the most prominent organizations investigating government spyware abuses, is sounding the alarm to the cybersecurity community and asking them to step up and join the fight against authoritarianism. On Wednesday, Ron Deibert will deliver a keynote at the Black Hat cybersecurity conference in Las Vegas, one of the largest gatherings of information security professionals of the year. Ahead of his talk, Deibert told TechCrunch that he plans to speak about what

Topics: cybersecurity deibert government security teams

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Disney+ will unhinge its jaw and swallow Hulu in 2026

engadget.com Unknown 2025-12-10 14:44:58

It’s almost the end of the road for Hulu as a standalone app. Now that it fully owns Hulu , Disney will entirely integrate the streaming service into Disney+. It will roll out a new, unified app next year. This doesn’t necessarily mean that the price of a Disney+ subscription is going to skyrocket in 2026. A Disney spokesperson told Variety the company will still offer standalone plans for Disney+ and Hulu. Disney CEO Bob Igor said on an earnings call that having Disney+ and Hulu on the same t

Topics: advertisement app disney hulu services

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Apple to announce $100B further commitment for U.S. manufacturing

techcrunch.com Dominic-Madori Davis 2025-12-10 14:30:45

In Brief Apple plans to increase its commitment to U.S. manufacturing, according to a White House official cited and first reported by Reuters. The tech giant is set to announce Wednesday another $100 billion in spending to help boost production of its products here in the U.S., after previously committing to invest $500 billion in the country over the next four years. The $500 billion commitment includes opening a new advanced manufacturing facility in Houston to produce servers that support

Topics: 500 apple billion commitment manufacturing

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Rethinking DOM from first principles

news.ycombinator.com Steven Wittens 2025-12-10 10:51:13

In either case, there are also some roadblocks. I'll just mention three: text-ellipsis can only be used to truncate unwrapped text, not entire paragraphs. Detecting truncated text is even harder, as is just measuring text: the APIs are inadequate. Everyone just counts letters instead. can only be used to truncate text, not entire paragraphs. Detecting truncated text is even harder, as is just measuring text: the APIs are inadequate. Everyone just counts letters instead. position: sticky lets e

Topics: canvas elements good just text

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Wired Called Our AirGradient Monitor 'Not Recommended' over a Broken Display

news.ycombinator.com Unknown 2025-12-11 10:27:27

Two weeks ago, I had what I can only describe as a punch-to-the-stomach moment (which luckily doesn’t happen very often). The AirGradient ONE - our monitor that was recognized in one of the world’s most rigorous scientific evaluations - suddenly became “Not Recommended” by WIRED magazine in their The Best Indoor Air Quality Monitors review. Yes, this is the same monitor that got two awards from the AirLab micro sensor challenge , one of the most rigorous sensor testing programs, beating more th

Topics: air methodology product quality recommended

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HTML Is Dead, Long Live HTML

news.ycombinator.com Steven Wittens 2025-12-11 10:51:13

In either case, there are also some roadblocks. I'll just mention three: text-ellipsis can only be used to truncate unwrapped text, not entire paragraphs. Detecting truncated text is even harder, as is just measuring text: the APIs are inadequate. Everyone just counts letters instead. can only be used to truncate text, not entire paragraphs. Detecting truncated text is even harder, as is just measuring text: the APIs are inadequate. Everyone just counts letters instead. position: sticky lets e

Topics: canvas elements good just text

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Software Rot

news.ycombinator.com Unknown 2025-12-11 11:35:19

Software rot is generally thought of as degradation of software due to a changing environment. For example, a program written a decade ago may no longer work with new versions of the libraries it depends on because some of them have changed without retaining backwards compatibility. This kind of thinking encourages a culture where software becomes obsolete unless it is constantly maintained. A better approach might be to talk about the reliability of the environment the software depends on. Wou

Topics: constantly decade environment software written

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Germany's identity crisis: The trains no longer run on time

news.ycombinator.com Aaron Wiener 2025-12-12 04:32:58

BERLIN — Germany: the land of beer, sausage and trains that run on time. Actually, make that the land where 56 percent of trains run on time. More precisely (or imprecisely, depending on how much of a rush you are in), the land where 56 percent of trains arrive within six minutes of the scheduled time — which is the cushion Deutsche Bahn, the national railroad company, allows itself for an “on-time” arrival. In Germany, punctuality is part of the national ethos. So to hear Germans talk about it

Topics: advertisement germany said train trains

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Coinbase shares slide Tuesday as crypto play takes double-digit fall from July record

cnbc.com Tanaya Macheel 2025-12-12 14:47:43

Shares were last down more than 5%. The decline occurred as investors adopted a risk-off stance on Tuesday and the three major averages declined. Coinbase is now off more than 30% from its all-time high of $444.65, reached on July 18. Shares popped in mid-July as legislators voted on a series of crypto-related bills, ending with President Donald Trump signing the GENIUS Act stablecoin legislation — the nation's first-ever crypto law. Shares have been collapsing since then. Shares of the crypto

Topics: coinbase crypto investors momentum shares

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Best Vitamins and Supplements for Women in 2025

cnet.com See Full Bio 2025-12-12 12:01:00

Nature Made makes some of the most affordable vitamins available. The Nature Made women's multivitamin includes 23 nutrients essential for women, including 100% of the recommended daily value of iron. Iron is one of the most common deficiencies in women, especially when pregnant or menstruating. With Nature Made, you get over the recommended value of vitamin C, D3 and E, as well as minerals zinc, copper and chromium. So if you are not deficient in those areas, you could get too much of them. Co

Topics: iron multivitamin nature recommended women

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Why Professionals Say You Should Think Twice Before Using AI as a Therapist

cnet.com See Full Bio 2025-12-12 12:32:49

Amid the many AI chatbots and avatars at your disposal these days, you'll find all kinds of characters to talk to: fortune tellers, style advisers, even your favorite fictional characters. But you'll also likely find characters purporting to be therapists, psychologists or just bots willing to listen to your woes. There's no shortage of generative AI bots claiming to help with your mental health, but go that route at your own risk. Large language models trained on a wide range of data can be un

Topics: ai chatbots health mental said

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Show HN: Stagewise (YC S25) – Front end coding agent for existing codebases

news.ycombinator.com Unknown 2025-12-12 21:38:36

stagewise The frontend coding agent for production codebases About the project Welcome to stagewise — The frontend coding agent for production codebases 💬 Tell the agent what you want to change 🧠 Click on element(s) to let the agent know where a change should happen 💡 Let stagewise do the magic! Perfect for devs tired of pasting element information and folder paths into prompts. stagewise uses real-time, browser-powered context. Features ⚡ Works out of the box 🧩 Customize and extend fu

Topics: agent app development license stagewise

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Beyond Retrieval: The Expanding Universe of Augmented Generation in AI

computer.org Laurel Tweed 2025-12-13 02:00:01

Introduction Standard large language models (LLMs) possess vast knowledge but struggle with limitations like hallucinations and accessing real-time information due to their static training data. This has spurred the development of dynamic AI architectures. Retrieval-Augmented Generation (RAG) has emerged as a key solution, integrating external knowledge into the generation process. However, the field is rapidly evolving beyond basic RAG. Newer models like RASG (Retrieval-Augmented Self-Generate

Topics: augmented generation knowledge rag retrieval

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Illinois is the first state to ban AI therapists

engadget.com Unknown 2025-12-13 09:57:56

Illinois Governor JB Pritzker has signed a bill into law banning AI therapy in the state. This makes Illinois the first state to regulate the use of AI in mental health services. The law highlights that only licensed professionals are allowed to offer counseling services in the state and forbids AI chatbots or tools from acting as a stand-alone therapist. HB 1806, titled the Wellness and Oversight for Psychological Resources Act, also specifies that licensed therapists cannot use AI to make “th

Topics: ai illinois mental state use

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Genie 3: A new frontier for world models

news.ycombinator.com Unknown 2025-12-13 09:08:52

Given a text prompt, Genie 3 can generate dynamic worlds that you can navigate in real time at 24 frames per second, retaining consistency for a few minutes at a resolution of 720p. Towards world simulation At Google DeepMind, we have been pioneering research in simulated environments for over a decade, from training agents to master real-time strategy games to developing simulated environments for open-ended learning and robotics. This work motivated our development of world models, which are

Topics: agents environments genie models world

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Researchers Press Pause on AI Therapy Bot After Reports of AI Psychosis in Similar Products

futurism.com Unknown 2025-12-13 14:12:12

A vitiligo research group has "hit pause" on its forthcoming AI therapy bot after learning about negative mental health effects that other chatbots have been having on users. The Vitiligo Research Foundation, a nonprofit dedicated to raising awareness and helping sufferers of the pigment-loss skin condition, cited recent news stories about so-called "AI psychosis" — the unofficial group of symptoms, including paranoid delusions, that AI seems to induce in certain users — as its rationale for pa

Topics: ai bot mental therapy vitiligo

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After a Deluge of Mental Health Concerns, ChatGPT Will Now Nudge Users to Take ‘Breaks’

gizmodo.com Lucas Ropek 2025-12-13 14:05:00

It’s become increasingly common for OpenAI’s ChatGPT to be accused of contributing to users’ mental health problems. As the company readies the release of its latest algorithm (GPT-5), it wants everyone to know that it’s instituting new guardrails on the chatbot to prevent users from losing their minds while chatting. On Monday, OpenAI announced in a blog post that it had introduced a new feature in ChatGPT that encourages users to take occasional breaks while conversing with the app. “Starting

Topics: chatbot chatgpt man mental users

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ChatGPT can no longer tell you to break up with your boyfriend

zdnet.com Sabrina Ortiz 2025-12-14 03:59:59

Elyse Betters Picaro/ZDNET ZDNET's key takeaways OpenAI adds reminders to take a break. ChatGPT will also have improved functions for mental health support. The company is working with experts, including physicians and researchers. As OpenAI prepares to drop one of the biggest ChatGPT launches of the year, the company is also taking steps to make the chatbot safer and more reliable with its latest update. Also: Could Apple create an AI search engine to rival Gemini and ChatGPT? Here's how

Topics: chatgpt company health mental openai

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OpenAI Admits ChatGPT Missed Signs of Delusions in Users Struggling With Mental Health

futurism.com Unknown 2025-12-14 04:12:59

After over a month of providing the same copy-pasted response amid mounting reports of "AI psychosis", OpenAI has finally admitted that ChatGPT has been failing to recognize clear signs of its users struggling with their mental health, including suffering delusions. "We don't always get it right," the AI maker wrote in a new blog post, under a section titled "On healthy use." "There have been instances where our 4o model fell short in recognizing signs of delusion or emotional dependency," it

Topics: chatbot chatgpt mental openai users

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Palantir is extending its reach even further into government

news.ycombinator.com Makena Kelly 2025-12-14 06:44:49

President Donald Trump’s administration has dramatically expanded its work with Palantir, elevating the company cofounded by Trump ally Peter Thiel as the government’s go-to software developer. Following massive contract terminations for consulting giants and government contractors like Accenture, Booz Allen, and Deloitte, Palantir has emerged ahead. Now the data analytics firm is partnering with those companies—offering them a lifeline while consolidating its own power. Palantir has become one

Topics: accenture companies government palantir trump

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BioShock 4 loses direction again as 2K fires top leadership

techspot.com Cal Jeffrey 2025-12-14 23:54:00

Facepalm: Take-Two's BioShock 4 has been stuck in development hell for over a decade. Now, executives have fired the studio head, demoted the creative director, and ordered a full rewrite, putting the project's future in doubt. Fans have long wondered when the game will launch - but maybe the real question is: will it? Take-Two is overhauling the long-delayed next installment in the BioShock series after an internal review left top executives at 2K Games dissatisfied with the game's progress. T

Topics: 2k bioshock development game studio

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Tim Cook hints Apple’s product roadmap is its most exciting ever

9to5mac.com Ryan Christoffel 2025-12-14 23:19:38

Apple CEO Tim Cook has long been skilled at talking up the company’s products. But in new remarks made just days ago, Cook hinted that he’s never been as excited about Apple’s product roadmap as now. Cook has ‘never felt so much excitement’ about Apple’s product pipeline Last week Apple leadership held an all-hands meeting with staff that covered a wide range of subjects. AI was a major focus, including updates on Siri’s delayed upgrades. The meeting also reportedly came with some classic Tim

Topics: apple cook excitement product products

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Fine-tuned small LLMs can beat large ones with programmatic data curation

news.ycombinator.com Unknown 2025-12-15 05:55:19

{ "systemInstruction" : { "role" : "system" , "parts" : [ { "text" : "# Retail agent policy As a retail agent, you can help users cancel or modify pending orders, return or exchange delivered orders, modify their default user address, or provide information about their own profile, orders, and related products. - At the beginning of the conversation, you have to authenticate the user identity by locating their user id via email, or via name + zip code. This has to be done even when the use

Topics: order parts payment role user

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In Desperate Bid to Get Elon Musk to Stay, Tesla Awards Him $29 Billion

futurism.com Unknown 2025-12-15 22:16:59

After many months of plummeting sales and disastrous earnings, Tesla has awarded its controversial CEO a whopping $29 billion worth of its shares in a bid to keep him at the helm of the carmaker. After a Delaware judge threw out his astronomical pay package last year, which was worth $56 billion at the time, shareholders are terrified that his incredibly damaging leadership could soon come to an end. While continuing to attempt to get the pay package reinstated, the board granted him a "good f

Topics: board company musk statement tesla

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New Plague Linux malware stealthily maintains SSH access

bleepingcomputer.com Unknown 2025-12-16 04:42:06

A newly discovered Linux malware, which has evaded detection for over a year, allows attackers to gain persistent SSH access and bypass authentication on compromised systems. Nextron Systems security researchers, who identified the malware and dubbed it "Plague," describe it as a malicious Pluggable Authentication Module (PAM) that uses layered obfuscation techniques and environment tampering to avoid detection by traditional security tools. This malware features anti-debugging capabilities to

Topics: authentication environment linux malware obfuscation

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Latest Tech News

A Fast, Growable Array with Stable Pointers in C

Companies Find Potential Way to Avoid Trump Tariffs and Keep Prices Low

OpenAI Announces Massive US Government Partnership

Tim Cook expected at White House event, Apple ‘largely unaffected’ by India tariffs

Apple to announce $100B further commitment for US manufacturing

Citizen Lab director warns cyber industry about US authoritarian descent

Disney+ will unhinge its jaw and swallow Hulu in 2026

Apple to announce $100B further commitment for U.S. manufacturing

Rethinking DOM from first principles

Wired Called Our AirGradient Monitor 'Not Recommended' over a Broken Display

HTML Is Dead, Long Live HTML

Software Rot

Germany's identity crisis: The trains no longer run on time

Coinbase shares slide Tuesday as crypto play takes double-digit fall from July record

Best Vitamins and Supplements for Women in 2025

Why Professionals Say You Should Think Twice Before Using AI as a Therapist

Show HN: Stagewise (YC S25) – Front end coding agent for existing codebases

Beyond Retrieval: The Expanding Universe of Augmented Generation in AI

Illinois is the first state to ban AI therapists

Genie 3: A new frontier for world models

Researchers Press Pause on AI Therapy Bot After Reports of AI Psychosis in Similar Products

After a Deluge of Mental Health Concerns, ChatGPT Will Now Nudge Users to Take ‘Breaks’

ChatGPT can no longer tell you to break up with your boyfriend

OpenAI Admits ChatGPT Missed Signs of Delusions in Users Struggling With Mental Health

Palantir is extending its reach even further into government

BioShock 4 loses direction again as 2K fires top leadership

Tim Cook hints Apple’s product roadmap is its most exciting ever

Fine-tuned small LLMs can beat large ones with programmatic data curation

In Desperate Bid to Get Elon Musk to Stay, Tesla Awards Him $29 Billion

New Plague Linux malware stealthily maintains SSH access

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