The HackerNoon Newsletter: Data, Surveillance, and the Law: What Is Policing? (3/28/2026)

How are you, hacker?

🪐 What’s happening in tech today, March 28, 2026?

The HackerNoon Newsletter brings the HackerNoon homepage straight to your inbox. On this day, Kodak Releases DC40 in 1995, and we present you with these top quality stories. From Real-Time Agentic RAG: Eradicating Context Rot With Spark Iceberg to Reading Without End: The Crisis of Linear Knowledge, let’s dive right in.

Data, Surveillance, and the Law: What Is Policing?

By @id [ 4 Min read ] This article is meant to bring into question what policing is and how it relates to citizens, governance, society, and public life. Read More.

I Built a NumPy-Like Library in Pure JavaScript: This Is Exactly How I Did It

By @prasoon-jadon [ 3 Min read ] After studying the concepts and experimenting with JavaScript, I started building a small numerical utility library inspired by NumPy. Read More.

Reading Without End: The Crisis of Linear Knowledge

By @andreimochola [ 7 Min read ] The link no longer needs to be visible to operate. Hypertext survives now less as interface than as cognitive habit. Read More.

How to Build Traceable AI Workflows With Retry and DLQ Visibility

By @romiteld [ 13 Min read ] Learn how structured tracing turns AI extraction workflows into debuggable systems with visibility into branches, retries, and failures. Read More.

Real-Time Agentic RAG: Eradicating Context Rot With Spark Iceberg

By @vaquarkhan [ 5 Min read ] A deep technical dive into eradicating AI Context Rot using Apache Spark 4.1 Intent Driven Design and Apache Iceberg v3 deletion vectors. 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 ✌️