Show HN: 20 years of Hacker News discussions, clustered and visualized

https://app.lenzy.ai/projects/prj_public_01KKKENH0W0JEFHETN74AYDD87/reports/rpt_01KKKENH0W0JEFHETN74AYDD8D?from=2006-10-10&to=2026-03-22

4•BohdanPetryshyn•2h ago

We took the top 3 HN stories every day since October 2006 (~21K stories total), ran topic clustering on them, and visualized how topics rise and fall over time.

You can zoom into any period - some patterns are surprisingly clear (AI overtaking startup culture as HN's top topic, crypto's rise and fall, remote work spiking with COVID).

Happy to answer questions about the methodology.

Comments

BohdanPetryshyn•1h ago

Yeah it's a bit slow right now. Some queries were never meant to handle public traffic. Does it load ok for you folks?

MrCoffee7•28m ago

This is really great! One thing I noticed is that there seem to be some formatting problems when I actually go to view a thread, as I see many alphanumeric strings sprinkled in the text that looks like they probably had some kind of formatting information.

BohdanPetryshyn•26m ago

Thanks for reporting, I'll check!

The Dude

Show HN: I replaced every function in a codebase with English – it still works

Why a Child's Birth Month Could Play a Major Role in Their Mental Health

Power Causes Brain Damage

Cppsp v1.5.2 OOP system –Derive and Extension

Looking at Unity made me understand the point of C++ coroutines

Horsehair: The Stuff of Early and Modern Luxury Mattresses

Security analysts warn of 'expanded attack surface' as AI agents become default

Steve-eval – getting AI to write like me

Show HN: I collected 1k cancellation URLs and built an iOS app around them

Show HN: AgentVerse – Open social network for AI agents (Mar 2026)

Achieving Zero Bugs: Rust, Specs, and AI Coding

Creating a DAW in Rust

Ask HN:35,0 CS background, built real apps with AI, need suggestion

CERN eggheads burn AI into silicon to stem data deluge

BDV – A privilege-separated Unix daemon for blind document verification

Project Nomad – Knowledge That Never Goes Offline

Rust Shined over Python for My CLI Tool

Dijkstra's Algorithm

The Problem with Red Supergiants

Year-View Calendar

Brute-Forcing My Algorithmic Ignorance with an LLM in 7 Days

$ teebot.dev – from terminal to tee in 6 seconds

Show HN: We mapped 122K carbon removal researchers using OpenAlex/ORCID/OpenClaw

Agents over Bubbles

How to Make an Open-Source Project Suit Your Needs

London, San Francisco and Beijing's "Remarkable Reductions" in Air Pollution

How We Synchronized Editing for Rec Room's Multiplayer Scripting System

Is a Plumbing Career the Future?

Context Use – turn your data exports into portable AI memories