5 Hackathons You Can Enter Right Now 🤫

It's June 2026, and the hackathon landscape has quietly become one of the most interesting places to be if you're building at the intersection of AI, Web3, and open infrastructure. Whether you have a half-baked idea or a production-grade prototype gathering dust,...

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500 Blog Posts To Learn About Startups

500 Blog Posts To Learn About Startups

Let's learn about Startups via these 500 free blog posts. They are ordered by HackerNoon reader engagement data. Visit the Learn Repo or LearnRepo.com to find the most read blog posts about any technology. "It takes humility to realize we don't know everything, not to...

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AI Hallucinations Are a Verification Issue

AI hallucinations are an unavoidable feature of probabilistic models, not a problem that can be completely solved. The author argues that AI safety should focus less on making models perfect and more on verifying outputs before they reach users. Current systems often...

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Retired Not Rehired: How AI Is Changing That

Over the past five decades, ==the share of Americans aged 65 and older has nearly doubled to 18%== - and the peak is still ahead. More than 4.1 million Baby Boomers are projected to turn 65 each year through 2027, making this ==the largest retirement wave== in U.S....

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I Downgraded My AI and Output Got Better

I tested Claude Opus 4.6, 4.7, and 4.8 across real production workflows. The newer models score higher on benchmarks but break file creation, Excel parsing, and code execution. 4.6 does what you ask it to do. Newer is not always better when reliability matters more...

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Creating Beautiful Light Shows With Soap

We feature a lot of fun projects with LEDs and lasers and all kinds of light effects going on. Most of these are very digital. However, there are a great many ways to make beautiful lighting effects without ones and zeros. The Maelstrom Lamp from [Michele Lorenzi] is...

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Tensordyne makes a big bet on log math to beat Nvidia

AI infrastructure startup Tensordyne has taped out its first commercial accelerator, with fabrication on TSMC’s 3nm process already underway. Developed in collaboration with Juniper Networks and Broadcom, Tensordyne’s systems promise higher throughput and lower power...

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