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Safe zero-copy operations in C#

news.ycombinator.com Unknown 2025-09-29 23:12:36

My attempt at talking about one of the most underrated features of C#. C# is a versatile language. You can write mobile apps, desktop apps, games, websites, services and APIs with it. You can write it like Java with all the abstractions and AbstractionFactoryClassProvider s. But differently from Java, you can write low-level and unsafe code too. When I say low-level, I mean without the GC, with raw pointers. Low-level code is usually required for performance or interoperability with C librarie

Topics: array edx int span sum

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This French VC went from posting on YouTube to raising a $12M fund for Y Combinator startups

techcrunch.com Tage Kene-Okafor 2025-09-30 20:00:36

Venture capital is filled with investors who claim they’ve got inside access to the next big thing. Meanwhile, Gabriel Jarrosson, a French engineer-turned-YouTuber-turned-investor, has built his VC firm around a single filter: if it isn’t a Y Combinator company, he won’t invest in it. That discipline pushed Jarrosson from filming scrappy venture explainers in Paris to managing more than $12 million in assets at Lobster Capital, with a larger second fund already in the works, according to recent

Topics: fund jarrosson million startups yc

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Harrods suffers new data breach exposing 430,000 customer records

bleepingcomputer.com Unknown 2025-10-01 16:19:43

UK retail giant Harrods has disclosed a new cybersecurity incident after hackers compromised a third-party supplier and stole 430,000 records with sensitive e-commerce customer information. In a statement for BleepingComputer, the luxury department store noted that the latest incident is not related to the May cyberattack, which was attributed to Scattered Spider. Harrods is a London-based luxury goods department store. It operates a full-featured e-commerce platform catering to international

Topics: company compromised customer customers harrods

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The Weird Concept of Branchless Programming

news.ycombinator.com Unknown 2025-10-02 00:40:53

THE WEIRD CONCEPT OF 'BRANCHLESS PROGRAMMING' 2025-07-08 01:37 • 19+ min read • #c #branchless DISCLAIMERS If you came for readable code, sorry, branchless programming is basically code golf with caffeine. Code examples are going to be ran in C code. Drastic measures (e.g. -O3 -ffast-math -march=native -fomit-this-entire-function ) were taken. 0×00 FUNKY INTRODUCTION Modern CPUs are predictive creatures. They guess what you're about to do, like a nosy algorithm trying to sell you sneakers

Topics: arr data int mask min

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Larry Ellison’s quest to run the world

theverge.com Terrence O'Brien 2025-10-02 03:32:05

For most of his career Larry Ellison has been content to quietly let Oracle be the company, behind the company, behind the technology that makes headlines. Its biggest products being cloud computing and database products that it sells to enterprise customers like DHL, Northwell Health, and Fanatics. But, now in his 80s, Ellison has begun a second act shifting from Silicon Valley pioneer, to media mogul. Compared to many of the other people at the top of the Forbes Billionaires list, Larry Ellis

Topics: company ellison larry media oracle

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China Finds Ingenious Solution for Its Decommissioned Wind Turbine Blades

gizmodo.com Margherita Bassi 2025-10-02 03:00:32

Many wind turbine blades in China are approaching retirement, and researchers have come up with a creative way to reuse the giant components. In a study published earlier this summer in the journal International Soil and Water Conservation Research, scientists suggest repurposing decommissioned wind turbine blades in sand control measures. Namely, in sand barriers. The approach could be the solution to two problems: dealing with old blades and finding optimal sand control measures. “Wind turbi

Topics: barriers blades sand turbine wind

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Dutch teens arrested for trying to spy on Europol for Russia

bleepingcomputer.com Unknown 2025-10-01 18:17:44

Two Dutch teenage boys aged 17, reportedly used hacking devices to spy for Russia, have been arrested by the Politie on Monday. According to De Telegraaf, the two used a WiFi sniffer device near Europol and Eurojust offices, as well as the Canadian embassy in The Hague. BleepingComputer has contacted Europol to confirm the reports, and a spokesperson acknowledged the incident, noting there are no signs of a compromise on the agency’s systems. “We are in close contact with the Dutch authoritie

Topics: arrested boys europol used wifi

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Can you get a good deal with a lesser-known prepaid brand, or is it too risky?

androidauthority.com Unknown 2025-10-01 23:00:40

Joe Maring / Android Authority The big postpaid carriers have been the dominant force in the cellular market since its inception, but rising prices and increasing competition are pushing more consumers toward prepaid. These options now range from bare-bones budget plans to services nearly identical to postpaid, yet the sheer number of prepaid brands can be overwhelming. Some advertise heavily, but many remain obscure. Are these lesser-known carriers worth your attention, or is the risk too high

Topics: carrier carriers known mobile prepaid

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Doctors Blame Cannabis for Healthy Woman’s Sudden Cardiac Arrest

gizmodo.com Ed Cara 2025-10-02 16:50:24

A healthy 26-year-old woman’s sudden loss of heart function appears to have had an unusual cause: cannabis. In a recent report, her doctors described what they believe to be a rare case of cannabis-induced cardiac arrest. Doctors at the WellStar Spalding Health System in Georgia detailed the strange incident earlier this week in the American Journal of Case Reports. The woman appeared to have no preexisting heart problems or other reasons for her heart stopping outside her cannabis use, the doc

Topics: arrest cannabis cardiac doctors heart

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Cracker Barrel Outrage Was Almost Certainly Driven by Bots, Researchers Say

gizmodo.com Aj Dellinger 2025-10-02 20:05:53

Did something feel…off about the whole Cracker Barrel debacle to you? Did you, in the midst of the endless stream of outrage directed at the Southern country-style restaurant, pause and think, “There’s just no way anyone cares about Cracker Barrel’s logo this much, right?” Well, you might have been onto something. According to data compiled by intelligence platform PeakMetrics, nearly half of the early posts about Cracker Barrel’s logo change appeared to be generated by bots. PeakMetrics grabbe

Topics: barrel cracker logo peakmetrics posts

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Trump Adviser Admits Larry Ellison Is “Shadow President of the United States”

futurism.com Frank Landymore 2025-10-03 16:25:26

Oracle co-founder, CTO and Executive Chairman Larry Ellison, accompanied by U.S. President Donald Trump in the Roosevelt Room of the White House. Photo by Andrew Harnik / Getty Images. Elon Musk may have blown up his relationship with Donald Trump like a Tesla battery that caught fire, but there’s another centibillionaire out there with deep influence in the Oval Office: Larry Ellison. The Oracle cofounder — who drooled last year that omnipresent AI surveillance will ensure “citizens will be o

Topics: ellison larry news oracle trump

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Show HN: A little notebook for learning linear algebra with Python

news.ycombinator.com Unknown 2025-10-03 16:46:13

Chapter 1. Vectors, scalars, and geometry 1. Scalars, Vectors, and Coordinate Systems Let’s get our hands dirty! This lab is about playing with the building blocks of linear algebra: scalars and vectors. Think of a scalar as just a plain number, like 3 or -1.5 . A vector is a small list of numbers, which you can picture as an arrow in space. We’ll use Python (with NumPy) to explore them. Don’t worry if this is your first time with NumPy - we’ll go slowly. Set Up Your Lab import numpy as np nump

Topics: array color norm np plt

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Show HN: The Little Notebook for Learning Linear Algebra with Python

news.ycombinator.com Unknown 2025-10-04 07:46:13

Chapter 1. Vectors, scalars, and geometry 1. Scalars, Vectors, and Coordinate Systems Let’s get our hands dirty! This lab is about playing with the building blocks of linear algebra: scalars and vectors. Think of a scalar as just a plain number, like 3 or -1.5 . A vector is a small list of numbers, which you can picture as an arrow in space. We’ll use Python (with NumPy) to explore them. Don’t worry if this is your first time with NumPy - we’ll go slowly. Set Up Your Lab import numpy as np nump

Topics: array color norm np plt

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History of Telecommunications T-Carrier

news.ycombinator.com Unknown 2025-10-02 18:30:36

Few aspects of commercial telecommunications have quite the allure of the T-carrier. Well, to me, at least, but then I have very specific interests. T-carrier has this odd, enduring influence on discussion of internet connections. I remember that for years, some video game installers (perhaps those using Gamespy?) used to ask what kind of internet service you had, with T1 as the "highest" option. The Steam Hardware Survey included T1 among the options for a long time. This was odd, in a lot of

Topics: carrier channels internet t1 telephone

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Jimmy Kimmel returns, calls FCC chairman an embarrassment to Republicans

arstechnica.com Unknown 2025-10-07 02:47:52

Much to President Trump's dismay, Jimmy Kimmel returned to TV last night. In a wide-ranging monologue met with near-constant applause, Kimmel discussed the comments that got him suspended and Federal Communications Commission Chairman Brendan Carr's attempts to silence speech the president doesn't like. "Brendan Carr is the most embarrassing car Republicans have embraced since this one, and that's saying something," Kimmel said, showing a photo of a Tesla Cybertruck painted with the American fl

Topics: carr disney fcc kimmel said

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The Download: accidental AI relationships, and the future of contraception

technologyreview.com Charlotte Jee 2025-10-08 11:10:00

It’s surprisingly easy to stumble into a relationship with an AI chatbot The news: The first large-scale computational analysis of the Reddit community r/MyBoyfriendIsAI, which is dedicated to discussing AI relationships, found that many people formed those relationships unintentionally while using AI for other purposes. In fact, only 6.5% of them said they’d deliberately sought out an AI companion. Why it matters: The study found that AI companionship provides vital support for some but exace

Topics: ai mit narrated review technology

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Man arrested in connection with cyber-attack on airports

feeds.bbci.co.uk Unknown 2025-10-09 01:53:42

Man arrested in connection with cyber-attack on airports 7 minutes ago Share Save Imran Rahman-Jones Technology reporter and Joe Tidy Cyber correspondent, BBC World Service Share Save Getty Images A person has been arrested in connection with a cyber-attack which has caused days of disruption at several European airports including Heathrow. The National Crime Agency (NCA) said a man in his forties was arrested in West Sussex "as part of an investigation into a cyber incident impacting Collins

Topics: aerospace arrested check collins cyber

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Inside Charlie Kirk’s megachurch memorial service

theverge.com Tina Nguyen 2025-10-09 07:58:43

Hello and welcome to Regulator. According to a rough transcript of Charlie Kirk’s memorial service, the word “martyr” was uttered less than 10 times. But to the 90,000-plus people watching live in Glendale, Arizona, and the 100 million who reportedly watched the livestream, it didn’t have to be stated so explicitly. As every speaker at the four-hourlong service repeatedly exhorted, the 31-year-old Turning Point USA co-founder had died as a faithful servant of Christ, bringing the gospel to coll

Topics: carr just people think trump

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The New ‘Welcome to Derry’ Trailer Welcomes You to Hell on Earth

gizmodo.com James Whitbrook 2025-10-10 04:00:14

Our previous looks at It: Welcome to Derry focused on some more grounded, realer evils lurking at the heart of a small town in ’60s Maine—cops, racism, sexism, the titular Derry has them all. But now we’re getting closer to the show’s debut, HBO wants to remind you that things are going to get somehow even worse for the residents of Derry. Much, much worse. Just over a month before the show hits streaming, today HBO dropped our biggest look yet at It: Welcome to Derry, unveiling a glimpse at th

Topics: arrival derry going hbo welcome

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Alloy is bringing data management to the robotics industry

techcrunch.com Rebecca Szkutak 2025-10-10 17:00:00

Robotics companies often have to deal with a simple but confounding problem: Robots produce a lot of data. Even a simple robot can easily produce up to a terabyte of data per day, since they continuously capture data from cameras and sensors. Sydney, Australia-based Alloy thinks it can help with that issue: the startup is building data infrastructure for robotics companies to help them process and organize all the data their robots collect from various sources, including sensors and cameras. A

Topics: alloy companies data harris robotics

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Tado’s new AI features will adaptively heat your home

theverge.com Jess Weatherbed 2025-10-11 06:32:47

Adaptive Heating: Learns the unique heat-up and cool-down characteristics of each room with Tado AI. It fine-tunes the control of your Smart Radiator Thermostats to optimize comfort and energy efficiency. Preheat Before Arrival: Tado AI uses advanced machine learning to predict when you’ll return home and preheats your home in time for your arrival. Energy IQ : Uses AI-powered insights that reveal exactly where and how you’re using energy, enabling smarter decisions and bigger savings. Holida

Topics: ai arrival energy heating home

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The Cracker Barrel Hype(rreality)

news.ycombinator.com John Ganz 2025-10-11 20:15:06

He told you so. I know I said I was going on vacation, but I’m waiting for my laundry, and I don’t leave until this afternoon, and I had a thought that I wanted to share. If you’re not online all the time like I am, you may not know that there is a national uproar about the changing of Cracker Barrel’s logo from its old-timey original to something more sleek and corporate. On the left is the old branding, and on the right is the new branding: This an example of the simplification of corporate

Topics: barrel cracker old people power

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Lidar, optical distance and time of flight sensors

news.ycombinator.com Unknown 2025-10-10 20:05:58

A range of approaches exist to directly measure distance as the length of the reflected optical path from laser, to a target where it is reflected, and back to a sensor. These are commonly known by various names, including LIDAR and time of flight sensors, although there is actually overlap in principles between them. The main system types are summarized in the table below. They are principally defined by the following key parameters: Optical distance measurement principle : This is the method

Topics: approaches array depth main optical

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Could T-Mobile and other big carriers be heading toward an online-only future?

androidauthority.com Unknown 2025-10-13 03:00:59

Edgar Cervantes / Android Authority It’s no secret that customer service has been slowly but surely declining as the big three carriers look to cut costs, but in-store support has arguably taken the sharpest hit. All three carriers have closed at least some of their locations and made moves to reduce their reliance on third-party stores, all while raising sales goals to nearly unachievable levels. The result has been widespread burnout and high turnover. It’s clear that carriers now view retail

Topics: carriers customers mobile store stores

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The EU Just Killed ARR

news.ycombinator.com Unknown 2025-10-14 19:13:27

The EU Just Killed ARR Annual Recurring Revenue (ARR) has been the backbone of SaaS for two decades. It gave investors predictable growth curves. It gave founders leverage in fundraising. It let boards sleep at night. But ARR was never a really well defined metric. And now, it may be practically dead in Europe. With the EU Data Act (effective September 2025), every SaaS contract with an EU customer becomes a “cancel anytime” subscription. Customers can walk away with two months’ notice. No e

Topics: arr customer eu need saas

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Meta’s quest to own your face

theverge.com David Pierce 2025-10-15 00:47:06

is editor-at-large and Vergecast co-host with over a decade of experience covering consumer tech. Previously, at Protocol, The Wall Street Journal, and Wired. Posts from this author will be added to your daily email digest and your homepage feed. Meta obviously believes in smart glasses. It’s not alone: Google, Apple, Samsung, and others all appear to be heavily invested in the idea that the next big gadget will be on your face. But at least for now, it appears Meta is the company building the

Topics: carr discuss episode meta talk

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Trump Says TV Networks That Criticize Him Should Lose Their Licenses

gizmodo.com Matt Novak 2025-10-15 08:45:47

ABC suspended the show Jimmy Kimmel Live indefinitely on Wednesday under pressure from FCC Chairman Brendan Carr, setting off a national discussion about whether the president should be able to dictate what Americans see on TV. And Trump made his threats against free speech even more explicit Thursday, telling reporters that any TV channel that was critical of him should lose its broadcasting license. Trump was asked on Air Force One about Carr, who had made threats against ABC while speaking

Topics: carr people president said trump

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These Are the 15 New York Officials ICE and NYPD Arrested in Manhattan

wired.com Dell Cameron 2025-10-15 20:18:10

Police arrested more than a dozen New York state and city elected officials Thursday at 26 Federal Plaza, the Manhattan immigration court and an Immigration and Customs Enforcement (ICE) field office, many as they pressed to gain access to the building’s 10th-floor lockup, where recent court rulings—including a temporary restraining order—directed ICE not to cram immigrants into overcrowded, unsanitary conditions. The lawmakers and other officials, arrested around 3:45 pm local time, say they w

Topics: arrested assembly member new officials

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Show HN: I created a small 2D game about an ant

news.ycombinator.com Unknown 2025-10-15 23:54:06

Use the arrow keys to collect all the apples! Help the ant get fed! Game repository: https://github.com/aanthonymax/ant-and-apples Made partially with hmpl-js out of boredom in a couple of days :)

Topics: aanthonymax ant apples arrow boredom

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FCC derided as “Federal Censorship Commission” after pushing Jimmy Kimmel off ABC

arstechnica.com Unknown 2025-10-16 15:10:54

ABC pulled Jimmy Kimmel's show off the air yesterday, shortly after Federal Communications Commission Chairman Brendan Carr urged the Disney-owned company to take action against Kimmel or face consequences at the FCC over Kimmel's comments about Charlie Kirk's killer. Carr appeared on right-wing commentator Benny Johnson's podcast yesterday and said, "We can do this the easy way or the hard way. These companies can find ways to change conduct, to take action, frankly on Kimmel, or there's going

Topics: abc carr fcc kimmel said

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Latest Tech News

Safe zero-copy operations in C#

This French VC went from posting on YouTube to raising a $12M fund for Y Combinator startups

Harrods suffers new data breach exposing 430,000 customer records

The Weird Concept of Branchless Programming

Larry Ellison’s quest to run the world

China Finds Ingenious Solution for Its Decommissioned Wind Turbine Blades

Dutch teens arrested for trying to spy on Europol for Russia

Can you get a good deal with a lesser-known prepaid brand, or is it too risky?

Doctors Blame Cannabis for Healthy Woman’s Sudden Cardiac Arrest

Cracker Barrel Outrage Was Almost Certainly Driven by Bots, Researchers Say

Trump Adviser Admits Larry Ellison Is “Shadow President of the United States”

Show HN: A little notebook for learning linear algebra with Python

Show HN: The Little Notebook for Learning Linear Algebra with Python

History of Telecommunications T-Carrier

Jimmy Kimmel returns, calls FCC chairman an embarrassment to Republicans

The Download: accidental AI relationships, and the future of contraception

Man arrested in connection with cyber-attack on airports

Inside Charlie Kirk’s megachurch memorial service

The New ‘Welcome to Derry’ Trailer Welcomes You to Hell on Earth

Alloy is bringing data management to the robotics industry

Tado’s new AI features will adaptively heat your home

The Cracker Barrel Hype(rreality)

Lidar, optical distance and time of flight sensors

Could T-Mobile and other big carriers be heading toward an online-only future?

The EU Just Killed ARR

Meta’s quest to own your face

Trump Says TV Networks That Criticize Him Should Lose Their Licenses

These Are the 15 New York Officials ICE and NYPD Arrested in Manhattan

Show HN: I created a small 2D game about an ant

FCC derided as “Federal Censorship Commission” after pushing Jimmy Kimmel off ABC

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