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New Knot Theory Discovery Overturns Long-Held Mathematical Assumption

Scanning the crowd at a fancy soiree may reveal a wide array of neckties, each fastened with a highly complex mathematical object masquerading as fashion. An entire field of mathematics is devoted to understanding mathematical knots, which one can obtain from any traditional knot by gluing the loose ends together. Mathematicians long believed that if you attach cut ends of two different knots to each other, the new knot will be just as complex as the sum of the individual knots’ complexity. But

What is it like to be a bat?

1974 philosophy paper by Thomas Nagel Thomas Nagel argues that while a human might be able to imagine what it is like to be a bat by taking "the bat's point of view", it would still be impossible "to know what it is like for a bat to be a bat". "What Is It Like to Be a Bat?" is a paper by American philosopher Thomas Nagel, first published in The Philosophical Review in October 1974, and later in Nagel's Mortal Questions (1979). The paper presents several difficulties posed by phenomenal consci

Instagram Finally Debuts Native iPad App. It Only Took 15 Years

Following earlier rumors in 2025, iPad users finally saw a dedicated Instagram app arrive on their devices on Wednesday. Since the iPad's original release 15 years ago, Instagram had never been available in the App Store as a download for Apple's tablet. Instead, users had been stuck with the workaround mobile version, which awkwardly failed to stretch to the iPad's larger screen size. It's not clear why Instagram took so long to appear on the iPad. (We're baffled by it just as much as you are.

Today's NYT Connections Hints, Answers and Help for Sept. 4, #816

Looking for the most recent Connections answers? Click here for today's Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections: Sports Edition and Strands puzzles. Today's NYT Connections puzzle features a fun mix of words, but some people might think the yellow category is rushing a certain holiday season. Read on for clues and today's Connections answers. The Times now has a Connections Bot, like the one for Wordle. Go there after

Today's NYT Strands Hints, Answers and Help for Sept. 4 #550

Looking for the most recent Strands answer? Click here for our daily Strands hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections and Connections: Sports Edition puzzles. Today's NYT Strands puzzle is a tough one. Some of the answers are really difficult to unscramble. If you need hints and answers, read on. I go into depth about the rules for Strands in this story. If you're looking for today's Wordle, Connections and Mini Crossword answers

Onion CEO Ben Collins Hasn't Given Up on Print—or Buying Infowars

Ben Collins made a big bet. A year ago, just a few months after he’d been named CEO of The Onion, he relaunched its print edition. Once a favorite on university campuses, The Onion hadn’t published a physical issue since 2013. Common wisdom said that readership, and advertising dollars, just weren’t there for newspapers. But Collins, a fan of the satirical paper since childhood, thought “that’s dumb.” Readers celebrated The Onion’s relaunch and the ability to read all of its bitingly funny head

You can finally scroll Instagram on your iPad - after 15 years

Jason Hiner/ZDNET Follow ZDNET: Add us as a preferred source on Google. ZDNET's key takeaways Meta just announced a native app version of Instagram for iPadOS 15.1 and later. The app is free and available in the App Store now. It looks different than the mobile version, with some interesting ways to curate your feed. At long last, you can now scroll Instagram on your iPad. After years of requests by iPad users, it will be available in the App Store for iPadOS 15.1 and later starting Septem

Instagram App Finally Appears on iPads, After 15 Years of Neglecting Apple's Tablet

After rumors earlier in 2025, iPad users finally saw the Instagram app arrive on their devices on Wednesday, appearing in the App Store after 15 years of avoiding the iPad. Since its original release, Instagram has never been available as a download for Apple's larger screen. While it's not certain why Instagram took so long to appear on the iPad, we've tested out the app and found it ready to download and fully functional. However, Instagram has made a few changes that indicate its latest prio

Voyager – An interactive video generation model with realtime 3D reconstruction

中文阅读 We introduce HunyuanWorld-Voyager, a novel video diffusion framework that generates world-consistent 3D point-cloud sequences from a single image with user-defined camera path. Voyager can generate 3D-consistent scene videos for world exploration following custom camera trajectories. It can also generate aligned depth and RGB video for efficient and direct 3D reconstruction. Sep 2, 2025: 👋 We release the code and model weights of HunyuanWorld-Voyager. Download. Join our Wechat and Discor

Speeding up PyTorch inference on Apple devices with AI-generated Metal kernels

Speeding up PyTorch inference by 87% on Apple devices with AI-generated Metal kernels tl;dr: Our lab investigated whether frontier models can write optimized GPU kernels for Apple devices to speed up inference. We found that they can: our AI-generated Metal kernels were 1.87x faster across 215 PyTorch modules, with some workloads running hundreds of times faster than baseline. Why use AI to generate kernels for Apple devices? AI models execute on hardware via GPU kernels that define each oper

What Is It Like to Be a Bat?

1974 philosophy paper by Thomas Nagel Thomas Nagel argues that while a human might be able to imagine what it is like to be a bat by taking "the bat's point of view", it would still be impossible "to know what it is like for a bat to be a bat". "What Is It Like to Be a Bat?" is a paper by American philosopher Thomas Nagel, first published in The Philosophical Review in October 1974, and later in Nagel's Mortal Questions (1979). The paper presents several difficulties posed by phenomenal consci

Speeding up PyTorch inference by 87% on Apple with AI-generated Metal kernels

Speeding up PyTorch inference by 87% on Apple devices with AI-generated Metal kernels tl;dr: Our lab investigated whether frontier models can write optimized GPU kernels for Apple devices to speed up inference. We found that they can: our AI-generated Metal kernels were 1.87x faster across 215 PyTorch modules, with some workloads running hundreds of times faster than baseline. Why use AI to generate kernels for Apple devices? AI models execute on hardware via GPU kernels that define each oper

Taylor Swift's Engagement Post Broke One Instagram Record and Is Still Climbing the Most-Liked List

Nobody is shaking this off: Pop superstar Taylor Swift and Kansas City Chiefs tight end Travis Kelce announced their engagement on Instagram just over a week ago, and the likes exploded like pyrotechnics at a concert. The post broke Instagram's record for reposts (though to be fair, reposting just started on Instagram in August). Still, the post hit 1 million reposts in less than 6 hours and earned 14 million likes in the first hour. By Wednesday this week, it had topped 36 million likes, vault

James Gunn’s Superman sequel is coming in 2027

is a reporter focusing on film, TV, and pop culture. Before The Verge, he wrote about comic books, labor, race, and more at io9 and Gizmodo for almost five years. Posts from this author will be added to your daily email digest and your homepage feed. James Gunn has been coy about his plans for a follow-up to this year’s excellent Superman movie, but the writer / director is finally sharing some concrete news about what’s next for the Man of Steel. Gunn announced in an Instagram post today that

Instagram launches official iPad app, now available on App Store

The day has finally arrived: Instagram for iPad is here. Though it seemed like it might never happen, the popular social media app now offers an official iPadOS version. Here are the details. Instagram for iPad rolling out to all users now Instagram’s iPad app is now rolling out to all users on the App Store. As you might expect, it includes access to your feed, stories, and most of the features you would expect. But Instagram has built its iPad app with a special emphasis on Reels. From th

Understanding Transformers Using a Minimal Example

The internal mechanisms of Transformer Large Language models (LLMs), particularly the flow of information through the layers and the operation of the attention mechanism, can be challenging to follow due to the vast amount of numbers involved. We humans can hardly form a mental model. This article aims to make these workings tangible by providing visualizations of a Transformer's internal state. Utilizing a minimal dataset and a deliberately simplified model, it is possible to follow the model's

A Random Walk in 10 Dimensions (2021)

Physics in high dimensions is becoming the norm in modern dynamics. It is not only that string theory operates in ten dimensions (plus one for time), but virtually every complex dynamical system is described and analyzed within state spaces of high dimensionality. Population dynamics, for instance, may describe hundreds or thousands of different species, each of whose time-varying populations define a separate axis in a high-dimensional space. Coupled mechanical systems likewise may have hundred

After 15 Years, Instagram Finally Releases an iPad App

Fact: the iPad launched 15 years ago in 2010. Steve Jobs famously made himself comfortable in a leather armchair and then proceeded to show everybody how “magical” the iPad was for browsing the web, looking at photos, and—yes—checking Facebook. Also fact: Instagram launched months later that fall, two years before Mark Zuckerberg would cut the app’s founders, Kevin Systrom and Mike Krieger, a fat check for $1 billion. In the decade and a half since establishing itself as the go-to place to share

The Instagram iPad App Is Finally Here

Apple debuted the iconic and now wildly popular iPad in 2010. A few months later, Instagram landed on the App Store to rapid success. But for 15 years, Instagram hasn't bothered to optimize its app layout for the iPad's larger screen. That's finally changing today: There's now a dedicated Instagram iPad app available globally on the App Store. It has been a long time coming. Even before Apple began splitting its mobile operating system from iOS into iOS and iPadOS, countless apps adopted a fre

Instagram is coming to iPad, 15 years later

is features writer with five years of experience covering the companies that shape technology and the people who use their tools. After years of requests from users, Instagram will finally have a dedicated app for iPad. Beginning Wednesday, September 3rd, users will be able to download the new app built specifically for Apple’s tablet. But it will be slightly different than the mobile app users are accustomed to. Most significantly, the iPad app will open directly to a feed of Reels, the compa

Instagram is finally launching an iPad app

After years of people constantly nudging Instagram about releasing an iPad app, the social network is finally launching one today. This means users will no longer need to use the iPhone app, which is not optimized for larger screens, or Instagram for web on the iPad. The new app defaults to the Reels screen, allowing you to scroll up and watch short videos on a larger screen. The iPad app has nearly all the features of the phone app when it comes to consumption. Stories appear at the top of th

Venezuela’s president thinks American spies can’t hack Huawei phones

During a press conference on Monday, Venezuela’s president, Nicolás Maduro, showed off a Huawei smartphone that China’s President Xi Jinping gifted him, calling it “the best phone in the world,” and making a bold claim. “The Americans can’t hack it, neither their spy planes, nor their satellites,” Maduro said. The phone looked like a Mate X6, a foldable phone released by Huawei in 2024. Obviously, nothing is impossible to hack, and even less so by U.S. government hackers, who are considered s

Voyager is an interactive video generation model with realtime 3D reconstruction

中文阅读 We introduce HunyuanWorld-Voyager, a novel video diffusion framework that generates world-consistent 3D point-cloud sequences from a single image with user-defined camera path. Voyager can generate 3D-consistent scene videos for world exploration following custom camera trajectories. It can also generate aligned depth and RGB video for efficient and direct 3D reconstruction. Sep 2, 2025: 👋 We release the code and model weights of HunyuanWorld-Voyager. Download. Join our Wechat and Discor

Is It Legal to Record Audio or Video on a Home Security Camera? Here Are the Rules

The core purpose of a security camera is to keep eyes on your home -- but how do privacy laws affect their use? You should know if you could get in trouble before getting a security camera that could watch anyone from joggers on the street to babysitters in your home. The good news is that your security monitoring should be fine in most cases, especially with a little common sense. But there are rules everyone should know before using live views or downloading video clips. Let's start with the

The connected customer

As brands compete for increasingly price conscious consumers, customer experience (CX) has become a decisive differentiator. Yet many struggle to deliver, constrained by outdated systems, fragmented data, and organizational silos that limit both agility and consistency. The current wave of artificial intelligence, particularly agentic AI that can reason and act across workflows, offers a powerful opportunity to reshape service delivery. Organizations can now provide fast, personalized support a

Computing simplified coverage polygons

A somewhat recurring problem I encounter in things I work on is the need to compute simplified geographic polygons, or more specifically, simplified hulls of geographic polygons. Here’s an overview on the currently used approach, maybe someone has pointers to better algorithms for this. Coverage polygons Geographic polygons are used in a few different places: The Transport API Repository and consumers of it like KPublicTransport use them for describing areas covered by a public transport rout

Tencent Open Sourced a 3D World Model

中文阅读 We introduce HunyuanWorld-Voyager, a novel video diffusion framework that generates world-consistent 3D point-cloud sequences from a single image with user-defined camera path. Voyager can generate 3D-consistent scene videos for world exploration following custom camera trajectories. It can also generate aligned depth and RGB video for efficient and direct 3D reconstruction. Sep 2, 2025: 👋 We release the code and model weights of HunyuanWorld-Voyager. Download. Join our Wechat and Discor

The Loophole Turning Stablecoins Into a Trillion-Dollar Fight

On July 18, after more than a decade of legal uncertainty, US lawmakers finally brought part of the crypto industry into the regulatory fold. The newly signed Guiding and Establishing National Innovation for US Stablecoins (GENIUS) Act requires issuers of stablecoins—cryptocurrencies that claim a value tied to a more stable asset—to fully back their tokens with cash or short-term Treasury bonds, submit to audits, and follow anti-money laundering rules, among other conditions. In an effort to cem

You're Not Interviewing for the Job. You're Auditioning for the Job Title

I once had a job interview for a backend position. Their stack was Node.js, MySQL, nothing exotic. The interviewer asked: "If you have an array containing a million entries, how would you sort the data by name?" My immediate thought was: If you have a JavaScript array with a million entries, you're certainly doing something wrong. The interviewer continued: "There are multiple fields that you should be able to sort by." This felt like a trick question. Surely the right answer was to explain w

Today's NYT Connections: Sports Edition Hints and Answers for Sept. 3, #345

Looking for the most recent regular Connections answers? Click here for today's Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle and Strands puzzles. Fans of the Fighting Irish, today's Connections: Sports Edition is calling your names. If you're struggling but still want to solve it, read on for hints and the answers. Connections: Sports Edition is out of beta now, making its debut on Super Bowl Sunday, Feb. 9. That's a sign that the game