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🪐 What’s happening in tech today, March 5, 2026?
The HackerNoon Newsletter brings the HackerNoon homepage straight to your inbox. On this day, Homebrew Computer Club Holds First Meeting in 1975, Yahoo! Officially Launches in 1955, and we present you with these top quality stories. From The Ambies, Imperfectly: A Night of Good Intentions and Unfortunate Surprises to Nano’s Pitch: A Currency That Actually Works, let’s dive right in.
The Mystery of the Ghost Refund: How Apple and Google Send Money Back to a Card They Never Saw
By @omotayojude [ 3 Min read ] Learn the technical secrets of how Apple Pay and Google Pay handle refunds through tokenization. Read More.
What Happens if You Remove ReLU From a Deep Neural Network?
By @emmimalpalexander [ 9 Min read ] A reproducible study shows why removing activations makes deep nets collapse into linear models—plus gradient behavior, depth effects, and boundaries. Read More.
Production Observability for Multi-Agent AI (with KAOS + OTel + SigNoz)
By @axsaucedo [ 19 Min read ] Learn how to monitor multi-agent AI systems with OpenTelemetry and SigNoz using KAOS on Kubernetes, tracing LLM calls, tool usage, and agent delegation. Read More.
Nano’s Pitch: A Currency That Actually Works
By @anson [ 6 Min read ] Nano is one of the few cryptocurrencies with a real ability to make the work a better place, but its being held back due to economics. Read More.
The Ambies, Imperfectly: A Night of Good Intentions and Unfortunate Surprises
By @recognized [ 9 Min read ] The 2026 Ambies arrived under pressure, a historic storm, delayed ceremony, and mounting questions about the Podcast Academys direction. Read More.
🧑💻 What happened in your world this week?
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We hope you enjoy this worth of free reading material. Feel free to forward this email to a nerdy friend who'll love you for it.See you on Planet Internet! With love, The HackerNoon Team ✌️
