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Alternative Blanket Implementations for a Single Rust Trait

news.ycombinator.com Serhii Potapov 2026-02-07 00:48:56

July 01, 2025 #rust #traits #patterns Serhii PotapovJuly 01, 2025 Rust's trait system is famously powerful - and famously strict about avoiding ambiguity. One such rule is that you can't have multiple blanket implementations of the same trait that could potentially apply to the same type. What Is a Blanket Implementation? A blanket implementation is a trait implementation that applies to any type meeting certain constraints, typically via generics. A classic example from the standard librar

Topics: adapter fn result self state

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Young, not dumb, and broke? Amazon is giving you 6 months of Prime for free

androidauthority.com Unknown 2026-02-10 16:27:41

Edgar Cervantes / Android Authority TL;DR Amazon’s new Prime for Young Adults membership is now available with a free six-month trial. Anyone between the ages of 18 and 24 is eligible for membership. The trial offers all the benefits of a Prime membership, including six months of free Prime Video streaming. Amazon’s Prime Day sale is almost here, and it’s already raining deals and offers. Not only has Amazon already started discounting its own devices early, it’s also now offering a very exc

Topics: adults amazon membership prime trial

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New Research Debunks Myth That Brain Cells Stop Growing After Childhood

gizmodo.com Ed Cara 2026-02-11 17:00:50

You’ve probably heard the old canard that new brain cells simply stop forming as we become adults. But research out today is the latest to show that this isn’t really true. Scientists in Sweden led the study, published Thursday in Science. They found abundant signs of neural stem cells growing in the hippocampus of adult brains. The findings reveal more about the human brain as we get older, the researchers say, and also hint at potential new ways to treat neurological disorders. “We’ve found

Topics: adult brain cells neurogenesis new

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Deal: Narwal Freo Pro robot cleaner plummets to $400, a new record-low price

androidauthority.com Unknown 2026-02-11 02:20:19

Jonathan Feist / Android Authority Here at Android Authority, we are big fans of Narwal cleaning robots. In fact, our top pick in our list of the best robot vacuums is a Narwal high-end model. Not everyone wants to spend well over a grand on a cleaning robot, though. The Narwal Freo Pro is a fantastic option if you want something more affordable. It competes against much more expensive alternatives, and is currently at a record-low price of just $399.99. Buy the Narwal Freo Pro for just $399.99

Topics: freo narwal pro robot ultra

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Apple CarPlay Ultra vs. Google Built-In: How the Next-Gen Auto Software Rivals Compare

cnet.com See Full Bio 2026-02-11 22:00:03

I'd spent an hour driving a $250,000-plus Aston Martin up the Los Angeles coast when my hunger pangs became impossible to ignore, and as I've done many times before, I asked Siri (through Apple CarPlay) to find me a taco place. But then I did something no other car on the planet allows: I asked Siri to blast the AC and make the air colder. That's because the 2025 Aston Martin DBX I drove was the first vehicle to come with Apple CarPlay Ultra, the upgraded version of the company's car software.

Topics: apple car carplay google ultra

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This Pro-Level Controller Is Great, but It Comes at a Price

cnet.com See Full Bio 2026-02-13 09:00:06

Turtle Beach is no stranger to making high-performance gaming hardware, either through its PDP brand or its own in-house accessories. The company is perhaps best known for its gaming headsets but has leveraged its decades of experience to bring us other great gaming accessories like the Stealth Ultra wireless controller. Well, mostly great, as we'll see. What I like about the Stealth Ultra Jason Cockerham/CNET Turtle Beach didn't try to reinvent the wheel with the Stealth Ultra. The standard

Topics: beach controller like stealth ultra

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Stale or strategic? Galaxy S26 Ultra’s camera and battery specs could disappoint fans

androidauthority.com Unknown 2026-02-13 10:28:13

Joe Maring / Android Authority TL;DR The upcoming Galaxy S26 Ultra is rumored to feature a 5,000mAh battery, the same as that of previous Galaxy S Ultra flagships since 2020. The primary camera on the Galaxy S26 Ultra is expected to retain a 200MP sensor, potentially marking three generations without a significant upgrade to this component. These early leaks suggest the Galaxy S26 Ultra could feature only minor hardware upgrades again, which might disappoint fans. Samsung is gearing up to la

Topics: battery galaxy s26 samsung ultra

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Deal: Narwal Fro Pro robot cleaner plummets to $400, a new record-low price

androidauthority.com Unknown 2026-02-13 08:20:19

Jonathan Feist / Android Authority Here at Android Authority, we are big fans of Narwal cleaning robots. In fact, our top pick in our list of the best robot vacuums is a Narwal high-end model. Not everyone wants to spend well over a grand on a cleaning robot, though. The Narwal Freo Pro is a fantastic option if you want something more affordable. It competes against much more expensive alternatives, and is currently at a record-low price of just $399.99. Buy the Narwal Freo Pro for just $399.99

Topics: freo narwal pro robot ultra

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That XOR Trick (2020)

news.ycombinator.com Unknown 2026-02-10 20:32:41

There are a whole bunch of popular interview questions that can be solved in one of two ways: Either using common data structures and algorithms in a sensible manner, or by using some properties of XOR in a seemingly hard to understand way. While it seems unreasonable to expect the XOR solutions in interviews, it is quite fun to figure out how they work. As it turns out, they are all based on the same fundamental trick, which we will derive in a bottom-up way in this post. Afterwards we will lo

Topics: elements missing result values xor

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Former Ubisoft executives convicted in France

engadget.com Unknown 2026-02-14 12:49:19

French video game giant Ubisoft has been embroiled in a multiyear saga regarding a toxic company culture , multiple sexual harassment investigations and harassment suits filed by former employees. In 2023, five former Ubisoft executives were arrested on various charges related to these investigations. On Wednesday, a French court sentenced three of them to suspended sentences for enabling a culture rife with sexual and psychological harassment. Former editorial vice president Thomas Francois wa

Topics: culture harassment sexual toxic ubisoft

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Marvel Rivals Season 3: New Phoenix Trailer Had Me Screaming 'What?!'

cnet.com See Full Bio 2026-02-14 12:12:00

As Marvel Rivals gets ready to kick off season 3 next week, we're getting our first glimpse at some of the upcoming changes. And, with respect to my poor beleaguered Blade bros, the biggest news for me is that Jean Grey, original member of the X-Men and sometimes terror of the cosmos, is joining the roster as Phoenix. There's plenty more coming, including Blade in Season 3.5 next month, but Phoenix is the headliner for me, and here's our first look at what she can do. Phoenix's abilities in Ma

Topics: new phoenix rivals season ultimate

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Double Is Winding Down

news.ycombinator.com Unknown 2026-02-14 21:33:09

Double is a registered investment adviser with the US Securities and Exchange Commission (SEC). While such registration does not imply a certain level of skill, it does require us to follow federal regulations that protect you, the investor. By law, we must provide investment advice that is in the best interest of our client. Please refer to Double'sfor important additional information.The publicly available portions of the Platform (i.e., the sections of the Platform that are available to indiv

Topics: does double investment results tax

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The Ultrahuman Ring Air Shamed Me Into Ditching Unhealthy Habits

cnet.com See Full Bio 2026-02-14 17:00:00

This is a little embarrassing to admit as someone who reviews wearables for a living, but the Ultrahuman Ring Air is my first-ever smart ring. I've tested just about every smartwatch and fitness tracker on the market, but never a ring. And honestly, that probably makes me the perfect person to review it -- not as a biohacking pro, but as someone who went into this exactly how most buyers would: curious, slightly skeptical and wondering whether it would make me ditch my smartwatch. Better yet, wo

Topics: data like ring tracking ultrahuman

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The Roku Ultra streaming device gave my TV 4K superpowers - and it's 20% off

zdnet.com Maria Diaz 2026-02-15 03:11:43

ZDNET's key takeaways The Roku Ultra is a streaming device available for $100. The Roku Ultra is the perfect streaming device for anyone who doesn't want to commit to team iOS with an Apple TV 4K or team Android with a Google TV Streamer. There are a few drawbacks to getting a Roku Ultra, like the lack of a headphone jack on the remote. $79 at Amazon $79.99 at B&H Photo-Video $99.99 at Roku more buying choices The Roku Ultra streaming device is on sale for $79, the lowest price we've ever see

Topics: device roku streaming tv ultra

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Apple Watch Ultra 3 release date: When to expect the new model

9to5mac.com Ryan Christoffel 2026-02-15 08:09:53

It’s been almost two years since a brand new Apple Watch Ultra model launched, but that drought is almost over. Apple Watch Ultra 3’s release date is fast approaching, here’s when to expect the new model. Apple Watch Ultra 3 expected to launch in September Last year, Apple did not launch a new Ultra model. Instead, it just released a new satin black titanium finish for the Ultra 2. But reporting from various sources indicates this is the year for a brand new model. Apple Watch Ultra 3 is exp

Topics: apple new september ultra watch

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Why I recommend this Hisense's QLED TV over pricier OLED models - especially at $900 off

zdnet.com Chris Bayer 2026-02-17 03:13:00

ZDNET's key takeaways The Hisense U8QG is available from 55-inch to 100-inch, with most models currently on sale. It offers arresting HDR picture quality and brightness. However, this set lacks some premium features like four HDMI ports and an ultra-thin frame. View now at Amazon View now at Best Buy View now at Walmart more buying choices The Hisense U8QG is one step down from the company's flagship TV, (the U9QG), and it's currently on sale for about $1,275 at major retailers (normally $2,2

Topics: 4k hisense tv u8qg ultra

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Xbox's first Game Pass additions for July include Tony Hawk’s Pro Skater 3 + 4

engadget.com Unknown 2026-02-18 03:42:33

Several titles are returning to the service, including Little Nightmares II and Rise of the Tomb Raider. Xbox has confirmed the first batch of Game Pass additions for July. The headliner this time around is Tony Hawk’s Pro Skater 3 + 4, which is coming to Game Pass Ultimate and PC Game Pass on July 11, which is the game’s release day. It was already known that this remake bundle was going to arrive on Game Pass on day one, but hey, there’s nothing wrong with a little reminder. The rest of the

Topics: game july pass pc ultimate

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Can this cheap Amazon multitool get the job done? Here's my expert advice

zdnet.com Adrian Kingsley-Hughes 2026-02-18 20:30:15

ZDNET's key takeaways Amazon Basics' 15-in-1 stainless steel multitool is available at Amazon for about $13. It's a well-made 15-in-1 with a myriad of useful tools, and the price can't be beat. Not every tool will be useful for everyone - I've never used a fish scaler or hook remover. $11.89 at Amazon The Amazon Basics 15-in-1 stainless steel multitool with a pocket knife is currently on sale for $10, or 22% off its original price. I've been covering lots of budget multitools lately -- the s

Topics: 15 multitool tools ve zdnet

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CarPlay Ultra hands-on reveals its standout best new feature

9to5mac.com Ryan Christoffel 2026-02-20 12:30:18

iOS 26 is one of CarPlay’s biggest updates in years, but we shouldn’t forget that Apple has another major CarPlay launch this year. CarPlay Ultra has officially arrived, and a hands-on published today identifies its strengths. Customization is the biggest strength of CarPlay Ultra Bradley Iger at The Verge got to spend some time with CarPlay Ultra in the Aston Martin DBX707. It’s currently one of the only vehicles that offers CarPlay Ultra—and it took years to get to this point. Aston Martin

Topics: apple carplay cluster gauge ultra

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Save $400 on this LG 5K display and get a free smart monitor - here's how to qualify

zdnet.com Taylor Clemons 2026-02-20 12:52:28

Looking to upgrade your work-from-home setup or need a high-end display for graphic design and other creative work? Right now at LG, you can save $400 on the 40-inch UltraWide 5K2K curved monitor, bringing the price down to $1,400. Through July 6, you can also get a 27-inch My View smart monitor for free when you bundle with the UltraWide, or you can save up to an additional 10% if you bundle two or more UltraWide 5K2K monitors. Also: The best Prime Day 2025 monitor deals live now Of course, t

Topics: display monitor smart ultrawide view

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Apple CarPlay Ultra hands-on: more continuity, less disruption

theverge.com Bradley Iger 2026-02-20 17:00:31

It’s been more than a decade since Apple unveiled the original version of CarPlay. In that time, the system has become indispensable for countless drivers all over the world. But while new iterations of iOS have introduced user interface tweaks and some additional customization features, its basic functionality hasn’t advanced much since that announcement back in March 2014. This changes with the introduction of CarPlay Ultra. First shown at WWDC 2022 and now available on any iPhone 12 or newer

Topics: aston carplay like martin ultra

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Millions of Brother Printers Are Full of Hackable Bugs

gizmodo.com Lucas Ropek 2026-02-21 08:00:35

Brother makes some solid, reliable printers. Indeed, for several years running, The Verge named it the best printer you should buy. Unfortunately, the company’s devices appear to be riddled with new zero-day bugs that could allow a savvy cybercriminal to hijack them. The vulnerabilities were discovered by cybersecurity firm Rapid7, which published a blog about the bugs last week. The blog explains that, after some research, Rapid7’s cyber pros came across a total of eight new zero-day vulnerabi

Topics: brother default devices password researchers

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Xbox Brought These Call of Duty and Warcraft Games to Game Pass in June

cnet.com See Full Bio 2026-02-21 18:00:05

The Call of Duty franchise got its start as a first-person shooter set during World War II. Game Pass subscribers can now return to that war and take part in historical battles in Call of Duty: WWII. Xbox Game Pass Ultimate, a CNET Editors' Choice award pick, offers hundreds of games you can play on your Xbox Series X, Xbox Series S, Xbox One and PC or mobile device for $20 a month. A subscription gives you access to a large library of games, with new titles, including Doom: The Dark Ages, adde

Topics: game pass play subscribers ultimate

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Hundreds of Brother printer models have an unpatchable security flaw

theverge.com Jess Weatherbed 2026-02-21 17:20:23

Serious security flaws have been found in hundreds of Brother printer models that could allow attackers to remotely access devices that are still using default passwords. Eight new vulnerabilities, one of which cannot be fixed by patching the firmware, were discovered in 689 kinds of Brother home and enterprise printers by security company Rapid7. The flaws also impact 59 printer models from Fujifilm, Toshiba, Ricoh, and Konica Minolta, but not every vulnerability is found on every printer mode

Topics: brother default device printer security

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Ultrasound toothbrush promises painless checks for hidden gum problems

news.ycombinator.com American Chemical Society 2026-02-17 15:20:52

This article has been reviewed according to Science X's editorial process and policies . Editors have highlighted the following attributes while ensuring the content's credibility: The toothbrush-shaped ultrasound transducer (left image) features a small head size (right image), allowing easy access to premolars and molars in the back of the mouth. Credit: Adapted from ACS Sensors 2025, DOI: 10.1021/acssensors.5c00521 When visiting the dentist, you might remember being poked and prodded by a t

Topics: gum teeth toothbrush transducer ultrasound

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Jon Watts Left ‘Fantastic Four’ to Get His Groove Back

gizmodo.com Justin Carter 2026-02-21 11:30:24

Before Matt Shakman took over directing duties for the MCU’s first Fantastic Four movie, Jon Watts was in charge. The director of the Spider-Man: Home trilogy dropped out in 2022, and his reasons for leaving are completely valid: he had to take a much-needed break. During a recent storytelling class at the Mediterrane Film Festival, Watts revealed he was basically “out of gas” by the time he was wrapping Spider-Man: No Way Home, which was shot in the early days of the pandemic. Following the nu

Topics: difficult fantastic great make watts

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Is being bilingual good for your brain?

news.ycombinator.com Unknown 2026-02-20 21:50:19

R eams of papers have been published on the cognitive advantages of multilingualism. Beyond the conversational doors it can open, multilingualism is supposed to improve “executive function”, a loose concept that includes the ability to ignore distractions, plan complex tasks and update beliefs as new information arrives. Most striking, numerous studies have even shown that bilinguals undergo a later onset of dementia, perhaps of around four years, on average. But some of these studies have faile

Topics: ability arrives beliefs multilingualism studies

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If only this Android camera powerhouse was easy to buy, I’d recommend it in a heartbeat

androidauthority.com Unknown 2026-02-21 04:30:20

OPPO Find X8 Ultra The OPPO Find X8 Ultra is one of the best Android phones for photography and videography, but it's ultra difficult for most of us to find and purchase due to its regional exclusivity. I’ve been waiting a long time for this, but finally, I spent some time with the OPPO Find X8 Ultra. I was a big fan of the Find X8 Pro that preceded it, especially its camera capabilities, and the Ultra builds on that, so I was eager to give it a spin. Unfortunately, this is the Chinese model s

Topics: android camera oppo ultra x8

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This EcoFlow power station just kept my lights on during an outage (and it's $1,399 off)

zdnet.com Maria Diaz 2026-02-22 03:24:01

ZDNET's key takeaways The EcoFlow Delta Pro Ultra battery and inverter unit is available now for $6,299 while the Smart Home Panel 2 is available for $1,899. The single unit has a 6kWh capacity and supports a 7,200W output and 5.6kW solar input, allowing it to run an entire home, especially when stacked with other units for increased capacity. The Delta Pro Ultra is a decidedly expensive solution for a home backup system, and though portable, its hefty weight could affect portability. View now

Topics: ecoflow home power pro ultra

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Supreme Court upholds Texas's porn site age verification law

engadget.com Unknown 2026-02-22 04:42:37

The US Supreme Court has upheld a Texas law that could have broad implications for online free speech. The court ruled 6-3 in affirming Texas law HB 1181, which requires websites that host adult content to implement age verification. The nonprofit Free Speech Coalition petitioned the top court in April 2024 to review the law. (The organization represents the adult industry.) Texas was one of many states passing age-verification laws aimed at porn websites. Pornhub has exited 17 states due to si

Topics: adults age content court law

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Latest Tech News

Alternative Blanket Implementations for a Single Rust Trait

Young, not dumb, and broke? Amazon is giving you 6 months of Prime for free

New Research Debunks Myth That Brain Cells Stop Growing After Childhood

Deal: Narwal Freo Pro robot cleaner plummets to $400, a new record-low price

Apple CarPlay Ultra vs. Google Built-In: How the Next-Gen Auto Software Rivals Compare

This Pro-Level Controller Is Great, but It Comes at a Price

Stale or strategic? Galaxy S26 Ultra’s camera and battery specs could disappoint fans

Deal: Narwal Fro Pro robot cleaner plummets to $400, a new record-low price

That XOR Trick (2020)

Former Ubisoft executives convicted in France

Marvel Rivals Season 3: New Phoenix Trailer Had Me Screaming 'What?!'

Double Is Winding Down

The Ultrahuman Ring Air Shamed Me Into Ditching Unhealthy Habits

The Roku Ultra streaming device gave my TV 4K superpowers - and it's 20% off

Apple Watch Ultra 3 release date: When to expect the new model

Why I recommend this Hisense's QLED TV over pricier OLED models - especially at $900 off

Xbox's first Game Pass additions for July include Tony Hawk’s Pro Skater 3 + 4

Can this cheap Amazon multitool get the job done? Here's my expert advice

CarPlay Ultra hands-on reveals its standout best new feature

Save $400 on this LG 5K display and get a free smart monitor - here's how to qualify

Apple CarPlay Ultra hands-on: more continuity, less disruption

Millions of Brother Printers Are Full of Hackable Bugs

Xbox Brought These Call of Duty and Warcraft Games to Game Pass in June

Hundreds of Brother printer models have an unpatchable security flaw

Ultrasound toothbrush promises painless checks for hidden gum problems

Jon Watts Left ‘Fantastic Four’ to Get His Groove Back

Is being bilingual good for your brain?

If only this Android camera powerhouse was easy to buy, I’d recommend it in a heartbeat

This EcoFlow power station just kept my lights on during an outage (and it's $1,399 off)

Supreme Court upholds Texas's porn site age verification law

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