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Measuring the impact of AI on experienced open-source developer productivity

news.ycombinator.com Unknown 2026-01-30 00:29:18

We conduct a randomized controlled trial (RCT) to understand how early-2025 AI tools affect the productivity of experienced open-source developers working on their own repositories. Surprisingly, we find that when developers use AI tools, they take 19% longer than without—AI makes them slower. We view this result as a snapshot of early-2025 AI capabilities in one relevant setting; as these systems continue to rapidly evolve, we plan on continuing to use this methodology to help estimate AI accel

Topics: ai capabilities developers evidence tasks
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Postgres LISTEN/NOTIFY does not scale

news.ycombinator.com Unknown 2026-01-26 08:05:06

At Recall.ai, we run an unusual workload. We record millions of hours of meetings every month. Each of these meetings generates a large amount of data we need to reliably capture and analyze. Some of that data is video, some of it is audio and some of it is structured data – transcription, events and metadata. The structured data gets written to our Postgres database by tens of thousands of simultaneous writers. Each of these writers is a “meeting bot”, which joins a video call and captures the

Topics: 03 database lock notify postgres
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This Android tablet is the best I've tested so far - and it's not by Google or Samsung

zdnet.com Jack Wallen 2026-01-30 10:52:00

ZDNET's key takeaways The Nubia Pad Pro is available on the official site for $419 -- $599 (depending on the configuration) The Nubia Pad Pro is a powerhouse of a tablet, elegantly designed with a massive battery for long life You can't purchase this tablet on Amazon yet. View now at Intl.nubia Many pundits and reviewers wrote off Android tablets years ago, and yet companies are still producing them. I've tested many Android tablets, especially those in the midrange, and have most often found

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The 15 Prime Day deals that are most popular with Verge readers

theverge.com Barbara Krasnoff 2026-01-30 10:18:15

is a reviews editor who manages how-tos and various projects. She’s worked as an editor and writer (and occasional sci-fi author) for more years than she cares to admit to. She can be found on Threads as @barbarask. It may not surprise anyone who is tech-aware that publications such as The Verge track the affiliate links that are clicked by their readers — in fact, every article that links to a vendor has this statement on top: “If you buy something from a Verge link, Vox Media may earn a commi

Topics: apple readers retractable ve water
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With Varda Space, leading Silicon Valley players make big bet on making drugs in space

techcrunch.com Aria Alamalhodaei 2026-01-30 15:14:09

Pharmaceutical scientists come up against a hard limitations here on Earth: gravity. Varda Space wants to change that. The company has raised a massive new round to turn space into the “ultimate high ground” for the production of critical pharmaceutical components that can be brought back to Earth and used to make finished drugs. The company’s $187 million Series C funding round announced Thursday will be used to build out a new laboratory facility that could transform Varda’s orbital manufact

Topics: company lab space spacecraft varda
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Empowering Disabled Students Through Teaching Tech: The TechAble Training Initiative at KNUST

computer.org Jasmine Ang 2026-01-30 17:45:12

What Is TechAble? The TechAble training initiative at the Kwame Nkrumah University of Science and Technology (KNUST) in Ghana began in February 2025 and ran for eight weeks. Aimed at supporting students with disabilities, TechAble provided mentorship and high-quality instruction for three courses: web development, graphic design, and digital marketing. The teaching and mentorship demystified commonly used programs and tools in the three course topics, allowing students to complement what they l

Topics: fund ieee participation students techable
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Anker’s fast power bank with two built-in USB-C cables is 30 percent off for Prime Day

theverge.com Brandt Ranj 2026-01-30 20:30:00

Anker’s 25,000mAh power bank with two built-in, retractable USB-C cables might be as essential for you as it is for me. It offers fast charging speeds, serving up to 100W through either of its USB-C cables (one of which doubles as a handle when it’s not in use), or a combined 165W if you have them both charging gadgets simultaneously. In time for Prime Day, this model costs $94.99 ($25 off) at Amazon and Anker. This is the lowest price it’s sold at in months. I’ve tested this battery pack with

Topics: cables charging devices power usb
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Show HN: CXXStateTree – A modern C++ library for hierarchical state machines

news.ycombinator.com Unknown 2026-01-26 22:06:46

To see all available qualifiers, see our documentation . Saved searches Use saved searches to filter your results more quickly We read every piece of feedback, and take your input very seriously. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window. Reload to refresh your session. You switched accounts on another tab or window. Reload to refresh your session. Dismiss alert

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Analyzing database trends through 1.8M Hacker News headlines

news.ycombinator.com Miguel Salinas 2026-01-27 22:55:04

How the analysis was done I used camelAI with a ClickHouse database of every HN story to do all analysis. You can use it for free with no login here to explore the data interactively yourself. 18 years • 1.8 million headlines • 13 database engines Hacker News is a real-time barometer of developer excitement. I mined every story title from February 2007 to June 2025 and asked three questions: How has headline volume for each database changed over time? Which engines are accelerating the fast

Topics: 25 database duckdb engines headlines
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Measuring the Impact of AI on Experienced Open-Source Developer Productivity

news.ycombinator.com Unknown 2026-01-31 00:29:18

We conduct a randomized controlled trial (RCT) to understand how early-2025 AI tools affect the productivity of experienced open-source developers working on their own repositories. Surprisingly, we find that when developers use AI tools, they take 19% longer than without—AI makes them slower. We view this result as a snapshot of early-2025 AI capabilities in one relevant setting; as these systems continue to rapidly evolve, we plan on continuing to use this methodology to help estimate AI accel

Topics: ai capabilities developers evidence tasks
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Analyzing Database Trends Through 1.8M Hacker News Headlines

news.ycombinator.com Miguel Salinas 2026-01-28 04:55:04

How the analysis was done I used camelAI with a ClickHouse database of every HN story to do all analysis. You can use it for free with no login here to explore the data interactively yourself. 18 years • 1.8 million headlines • 13 database engines Hacker News is a real-time barometer of developer excitement. I mined every story title from February 2007 to June 2025 and asked three questions: How has headline volume for each database changed over time? Which engines are accelerating the fast

Topics: 25 database duckdb engines headlines
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Looking for a tablet for your kid? They're as low as $55 during Amazon Prime Day

zdnet.com Maria Diaz 2026-01-31 10:31:00

My kids love their Fire tablets, and I love the convenience of parental controls they offer. Maria Diaz/ZDNET Amazon is offering some huge deals on its latest Fire Kids Tablets during Prime Day, my kids' favorite device for home and on-the-go entertainment. The newest Amazon Fire HD 8 Kids tablet is 54% off at $65, the Amazon Fire HD 8 Kids Pro tablet for older kids is also down to $65, and the larger Amazon Fire HD 10 Kids Pro is down to $105. Also: The best Prime Day deals you can shop now

Topics: deals hd kids pro tablets
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10 ways an IT home lab can help you land your next job - and how to get started (it's easy!)

zdnet.com David Gewirtz 2026-01-31 10:52:00

EschCollection/Getty Images When I was a kid, my home lab consisted of test tubes and beakers, sodium bicarbonate (baking soda), acetic acid (vinegar), and the occasional boom, followed closely by the sound of my mom in the distance yelling, "David Allen Gewirtz, you stop that right now." When the scold transitioned from "David Gewirtz" to "David Allen Gewirtz," I knew I was in trouble. To be fair, nothing prepared my nontechnical mom and dad to raise a future engineer. I was forever taking th

Topics: ai experience home lab projects
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Amazon Prime Day deals include Ooni pizza ovens for up to 30 percent off

engadget.com Unknown 2026-01-31 15:47:58

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . If you've been eyeing Ooni's pizza ovens, but haven't yet taken the leap, there are a few tasty Prime Day deals that will save you some cash. Better yet, they're still available on day 3 of the sale. The biggest savings is on the company's electric model, but there's gas and wood-burni

Topics: available deals ooni pizza price
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Prime Day sale slashes the Galaxy Tab S10 Plus price by $165

androidauthority.com Unknown 2026-01-31 20:30:41

Zac Kew-Denniss / Android Authority We love a high-performance tablet, and if you’re the same, there’s a significant deal available right now in the Prime Day sale. The Samsung Galaxy Tab S10 Plus is currently available at a discounted price of $834.99, down from its regular price of $999.99. We were certainly impressed with it in our review, and it’s even more appealing at this marked-down price. Samsung Galaxy Tab S10 Plus for $834.99 (17% off) This tablet boasts a stunning 12.4-inch Dynamic

Topics: galaxy plus s10 samsung tab
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The next big HDMI leap will change how you watch TV - what the 2.2 standard means

zdnet.com Chris Bayer 2026-02-01 08:15:12

Kerry Wan/ZDNET The arrival of HDMI 2.2 technology ushers in a new era of A/V potential, which is great news for enthusiasts and future-proofing fanatics. It might be a little while before every device on the market sports the new tech, but you can expect to see the first "Ultra96" HDMI cables hitting shelves later this year. Increased bandwidth and resolution This is a significant leap forward from the current HDMI 2.1. Even ultra-high-speed 2.1 cables cap out at 48 Gbps. While 48 Gbps has c

Topics: cable hdmi high hz new
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Bitcoin Hits $112K, but Something Feels Off

gizmodo.com Luc Olinga 2026-02-01 09:07:02

Bitcoin is on the move again. The world’s largest cryptocurrency by market value surged past a symbolic milestone on Wednesday, reaching a record-breaking $112,055 on the Coinbase exchange around 3:55 p.m. ET. That’s the highest price ever recorded for Bitcoin on Coinbase, surpassing the previous high of $111,891 set in May. With this latest surge, Bitcoin is up nearly 20% since the start of the year. The sudden move stunned traders and rekindled hopes among Bitcoin’s faithful. For weeks, pric

Topics: bitcoin price short stablecoins value
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Bitcoin Hits $112K But Something Feels Off

gizmodo.com Luc Olinga 2026-02-01 15:07:02

Bitcoin is on the move again. The world’s largest cryptocurrency by market value surged past a symbolic milestone on Wednesday, reaching a record-breaking $112,055 on the Coinbase exchange around 3:55 p.m. ET. That’s the highest price ever recorded for Bitcoin on Coinbase, surpassing the previous high of $111,891 set in May. With this latest surge, Bitcoin is up nearly 20% since the start of the year. The sudden move stunned traders and rekindled hopes among Bitcoin’s faithful. For weeks, pric

Topics: bitcoin price short stablecoins value
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The best Prime Day deals on Amazon devices: Save up to 68 percent on Kindle ereaders, Echo speakers and more

engadget.com Unknown 2026-02-01 20:30:35

Engadget has been testing and reviewing consumer tech since 2004. Our stories may include affiliate links; if you buy something through a link, we may earn a commission. Read more about how we evaluate products . Amazon’s own gadgets — Echo speakers, Fire tablets, Kindles and the like — are at the top of the list of tech on sale during Amazon Prime Day. While there are some (Echos, Kindles) that we like more than others (Fire tablets), there’s no question that you’ll get the best discount on al

Topics: amazon percent prime tablet tv
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This Lenovo 2-in-1 is made for students - and it couldn't be more affordable

zdnet.com Kyle Kucharski 2026-02-01 20:26:16

ZDNET's key takeaways The Lenovo Chromebook Duet Gen 9 is on sale now for $269. It's a versatile and highly-portable device that's as useful at home as in the office. Some of the most buzzworthy features are tied to subscriptions, and the keyboard and trackpad are very small. $379 at Lenovo $269 at Best Buy more buying choices The Lenovo Chromebook Duet Gen 9 is on sale at Best Buy for $269. That's $130 off the already-low regular price. The ninth-generation Lenovo Chromebook Duet is an 11-i

Topics: chromebook device duet lenovo tablet
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HyAB k-means for color quantization

news.ycombinator.com Unknown 2026-02-01 20:34:30

HyAB k-means for color quantization Color quantization in CIELAB space, visualized. The input is converted to CIELAB space and a special “HyAB” distance formula is used when clustering. This in theory should result in better image quality. I’ve been obsessing over color quantization algorithms lately, and when I learned that an image conversion app called Composite did its so-called pixel mapping step in CIELAB space, I instantly thought of the “HyAB” color distance formula I’d seen in the FLI

Topics: cielab color distance hyab means
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I've tested every iPad model - here's why I recommend the Mini to most people (especially at $120 off)

zdnet.com Maria Diaz 2026-02-02 00:03:00

ZDNET's key takeaways The iPad Mini 7 is on sale for $379. The compact iPad Mini 7 has gone everywhere with me this past week, fitting easily into bags and purses without weighing them down. Aside from the more powerful A17 Pro chip, the iPad Mini 7 isn't much of an upgrade (especially for 6th-gen users), plus its display tops out at 60Hz. View now at Amazon The iPad Mini 7 is currently $120 off at Amazon, starting at $379. This deal applies to all three storage options. I've used many table

Topics: apple ipad mini pro tablet
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MLB will test its robot umpire system at the next All-Star Game

engadget.com Unknown 2026-02-02 05:37:32

While human umpires will still make the first call at the All-Star Game on July 15, Major League Baseball plans to let teams use a robot umpire to challenge rulings, ESPN reports. The automated ball-strike (ABS) system has been around for years in one form or another, but relying on a computer's judgement of a pitch has yet to become a permanent fixture of major league play. MLB is essentially porting over the ABS challenge system used during spring training for the upcoming All-Star Game in At

Topics: abs challenge human league mlb
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Samsung Galaxy Z Fold 7 hands-on: Finally, the foldable phone I've been waiting for

zdnet.com Kerry Wan 2026-02-02 05:05:00

Sabrina Ortiz/ZDNET Has Samsung finally done it? As a foldable phone enthusiast, I've been asking myself that question throughout the month leading up to Unpacked, where the company today pitched its newest shape-shifting handset, the Galaxy Z Fold 7. Within a second of the phone's unveiling, the answer was a resounding yes. But I didn't need the roar of the crowd to tell me that. Also: Everything announced at Samsung Unpacked: Galaxy Z Fold 7, Flip 7, Watch 8 Series, more Samsung's latest f

Topics: fold foldable galaxy samsung year
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Are portable solar panels legit? I saved $30 a month with these (and they're $400 off)

zdnet.com Maria Diaz 2026-02-02 05:18:43

ZDNET's key takeaways The EcoFlow 125W bifacial solar panels retail for $899 for a four-pack. They're portable panels that you can take with you or set up temporarily without construction, with easy setup, and lightweight construction Though portable, these bifacial solar panels feel very fragile, so they must be weighed down if conditions are windy; their low 125W input also limits their capacity. $899 at Amazon The EcoFlow 4pcs 125W Solar Panels are now 44% off, a discount of $400 on Amazon

Topics: ecoflow panels portable power solar
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