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Best early Prime Day Nintendo Switch deals: My 15+ favorite sales live now

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Best Prime Day Samsung deals: My 25 favorite sales already live

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Best early Prime Day Kindle deals: My 10+ favorite sales live now

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

My pick for the best Roku TV is still 40% off at Best Buy

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Best early Prime Day smartwatch and fitness tracker deals: My 8 favorite sales live now

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Save $500 on UltraGear OLED gaming monitors at LG with special code

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

1945 TV Console Showed Two Programs at Once

As I try to write this article, my friend and I have six different screens attached to three types of devices. We’re working in the same room but on our own projects—separate yet together, a comfortable companionship. I had never really thought of the proliferation of screens as a peacekeeping tool until I stumbled across one of Allen B. DuMont’s 1950s dual-screen television sets. DuMont’s idea was to let two people in the same room watch different programs. It reminded me of my early childhood

Collatz's Ant and Σ(n)

Collatz's Ant and Σ(n) Relevant preceding posts here and here. Consider the corresponding ant’s landscape development for $n = 500$: with the last frame being: Let’s also consider a score function $\Sigma(n)$ which returns the number of 1’s (or marked states) left by the ant on the corresponding landscape (regarding the last frame). With the prior example, we would have $\Sigma(500) = 54$. We might also want to normalize this by the corresponding stopping time $\tau_{n}$ characteristic of th

Async Queue – One of my favorite programming interview questions

For the past 7+ years, I've been conducting a programming interview that has been a true personal favorite of mine. It was passed down to me from good friends (Jeremy Kaplan and Carl Sverre, and it was the latter whom I believe invented it). This interview has probably been given by us between 500-1000 times across different companies, and upon googling for "async queue interview", I see tons of results. So, it's probably fine for me to blog about it. My main goal with this blog post is to disc

More than 1 in 5 Show HN posts are now AI-related, get > half the votes/comments

More than 1 in 5 Show HN posts are now AI-related, but get less than half the votes or comments. _ The idea for this article didn't exist in my brain before this morning. But there I was, scrolling the New page and even more tired of all the AI-related Show HN posts than usual. I was confident that their numbers were multiplying and wanted proof. Exactly how much more AI crap is on my lawn compared to last year? Full disclosure: I'm not a data guy. Everything below was off the top of my head. N

‘Daemons of the Shadow Realm’ WIll Be a ‘FullMetal Alchemist’ Anime Reunion

The enduring legacy of Hiromu Arakawa’s FullMetal Alchemist can be partially owed to its pair of anime adaptations by animation studio Bones. Since then, both creator and company have moved on to other ventures—the latter has notably adapted the likes of My Hero Academia and the newly premiered Gachiakuta, among others. Now, 15 years after FullMetal Alchemist: Brotherhood concluded, Bones is back at adapting Arakawa’s work, namely her fantasy manga Daemons of the Shadow Realm. During Crunchyrol

Stop Paying for Antivirus: This VPN Offers It for Free at a Bottom-Shelf Price

Things are getting pricier around here, and by here, we refer to the world. Why spend extra on antivirus when you can get one for free? Before you ask, this isn’t a joke. The famous VPN includes antivirus for a pocket change. We refer to Surfshark, and we reckon you’ve heard of it. If not, prepare to have your brain melted with this exquisite sizzling-hot summer flash sale. Get Surfshark and antivirus at a coffee price; follow along. Save 86% on Surfshark Today Surfshark One: Your Ticket to C

X blocked Reuters accounts in India

The main Reuters news account, as well as the Reuters World account, became inaccessible to X users in India on Saturday evening. Access was subsequently restored on Sunday. Reuters reports that Indian users attempting to view the @Reuters account — which has 25 million followers — instead saw a message stating that the account “has been withheld in IN (India) in response to a legal demand.” However, an Indian government spokesperson told TechCrunch, “There is no requirement from the Governmen

Bosses Are Using AI to Decide Who to Fire

Though most signs are telling us artificial intelligence isn't taking anyone's jobs, employers are still using the tech to justify layoffs, outsource work to the global South, and scare workers into submission. But that's not all — a growing number of employers are using AI not just as an excuse to downsize, but are giving it the final say in who gets axed. That's according to a survey of 1,342 managers by ResumeBuilder.com, which runs a blog dedicated to HR. Of those surveyed, 6 out of 10 admi

Best early Prime Day phone deals: These 14 sales are worth the upgrade

'ZDNET Recommends': What exactly does it mean? ZDNET's recommendations are based on many hours of testing, research, and comparison shopping. We gather data from the best available sources, including vendor and retailer listings as well as other relevant and independent reviews sites. And we pore over customer reviews to find out what matters to real people who already own and use the products and services we’re assessing. When you click through from our site to a retailer and buy a product or

Reinforcement Learning from Human Feedback (RLHF) in Notebooks

Reinforcement Learning from Human Feedback (RLHF) in Notebooks This repository provides a reference implementation for Reinforcement Learning from Human Feedback (RLHF) [Paper] framework presented in the RLHF from scratch, step-by-step, in code YouTube video. Overview of RLHF RLHF is a method for aligning large language models (LLMs), like GPT-3 or GPT-2, to better meet users' intents. It is essentially a reinforcement learning approach, where rather than directly getting the reward or feedba

Building a Mac app with Claude code

I recently shipped Context, a native macOS app for debugging MCP servers. The goal was to build a useful developer tool that feels at home on the platform, powered by Apple's SwiftUI framework. I've been building software for the Mac since 2008, but this time was different: Context was almost 100% built by Claude Code1. There is still skill and iteration involved in helping Claude build software, but of the 20,000 lines of code in this project, I estimate that I wrote less than 1,000 lines by ha

GameStop Might've Sold Your Purchase Data to Facebook: How to Claim a Piece of the Settlement

There's still time to claim part of GameStop privacy settlement. Have you bought something from video game retailer GameStop in the past five years? Did you have a Facebook account when you did so? According to an email I received awhile back, that includes me. If it includes you as well, you can claim your own piece of a brewing settlement from the company, and you've still got a few weeks to do so. Last month, GameStop agreed to pay $4.5 million to settle a class action lawsuit accusing it o

Best VPN for Mac for 2025: Stay Private While Streaming, Torrenting, Browsing the Web and More

Most VPN providers offer a VPN app for Mac computers, but it can be difficult to choose the right provider with so many options available. Based on our extensive research and hands-on testing of VPNs over the years, these are the most important factors to consider when choosing a VPN: Privacy The primary consideration for any VPN -- including a Mac VPN -- should be privacy. If your Mac VPN is unable to sufficiently protect your online privacy, then your VPN is useless. At a minimum, your VPN s

Topics: mac privacy vpn vpns want

Figuring out why a nap might help people see things in new ways

Dmitri Mendeleev famously saw the complete arrangement of the periodic table after falling asleep on his desk. He claimed in his dream he saw a table where all the elements fell into place, and he wrote it all down when he woke up. By having a eureka moment right after a nap, he joined a club full of rather talented people: Mary Shelley, Thomas Edison, and Salvador Dali. To figure out if there’s a grain of truth to all these anecdotes, a team of German scientists at the Hamburg University, led

Best Indoor TV Antenna (2025): Mohu, Clearstream, One for All

If you Like free stuff, an indoor TV antenna should be high on your list. For a small up-front fee you get free, high-quality digital broadcasts like local and national news, sports, movies, and tons of TV shows from past and present. Today's digital antennas already provide multiple high-definition channels, and thanks to support for ATSC 3.0, we can expect even more features in the future, from HDR to 4K UHD and beyond. To find the best indoor TV antenna for your money, we tested multiple mode

Here are 33 of our favorite deals from Amazon’s early Prime Day sale

Amazon’s next Prime Day event hasn’t officially kicked off yet, but as usual, the retailer has already dropped a selection of early deals ahead of the four-day shopping event. While steeper discounts are surely to arrive when things kick off on July 8th, many of the current offers are already worth considering, especially if you’re a Prime member looking to score a deal on one of Amazon’s own devices or services. Most of these offers are exclusive to Prime members; however, some retailers are pr

Atomic "Bomb" Ring from KiX, 1947 (2020)

Release date: 1947 | Where to purchase: eBay 1947 | “It’s a seething scientific sensation!” In 1947, General Mills’ KiX cereal brand offered the Atomic “Bomb” Ring as a premium in exchange for 15 cents plus a cereal box top. Also known as the Lone Ranger Atomic Bomb Ring, it was a reflection of the public’s preoccupation with the power and potential of atomic energy at the time. The ring had an adjustable gold-coloured band with lightning-blast explosions on its sides. An aluminum warhead was

New study offers clues about what makes someone cool

Is there a secret sauce that helps explain why people as different as David Bowie, Samuel L. Jackson and Charli XCX all seem so self-assured and, well, cool? A new study suggests that there are six specific traits that these people tend to have in common: Cool people are largely perceived to be extroverted, hedonistic, powerful, adventurous, open and autonomous. The study, which was published on Monday in the Journal of Experimental Psychology: General, surveyed nearly 6,000 participants from

Hidden interface controls that affect usability

Philip Kortum In the early 1960s, Douglas Engelbart [1] first introduced the notion of "knowledge in the world" versus "knowledge in the head" for computer interfaces—an idea that was later formalized and popularized by Donald Norman in his seminal book The Psychology of Everyday Things. From an interface design standpoint, knowledge in the world simply means that the controls you need are visible, and the identification and operation of these controls can be done through recognition rather tha

Ask not for whom the Louvre of Bluesky tolls, it tolls for thee

It’s a sad weekend over at Bluesky, where one of the best accounts has disappeared — although we can still hope for its resurrection. Known as The Louvre of Bluesky, the account in question struck fear into the hearts of bad posters everywhere. While it posted commentary and jokes of its own, its most brutally funny and haunting work came in the form of screenshots capturing rogue Bluesky posts in all their unhinged glory. It’s hard to write a proper appreciation now that the Louvre has vanish