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Erlang: The Movie

dawsdesign
Demos
YouTube
2 HN users recommended this demo2 months2017–2021 score 2.5
Years with an HN recommendation, 2007–2026

HN treats it as a classic that shows what Erlang was built for: robust, concurrent telecom systems with live upgrades.

A short film about the Erlang language, showing telecom systems built from lightweight processes and demonstrating hot code swapping. It is an edited version of the original Ericsson video.

“this is truly a gem” (HN, 2018)

1 strong recommendations · 1 recommendations · 3 citations · 1 jokes · Demos · intro

6 Hacker News comments

From the HN archive; up to 20 kept per video, favoring different commenters. Recommendations first.

@jimbokun Dec 2018 Strongly recommends
on HN thread Twenty Years of Open Source Erlang: A Retrospective from the trenches
I had never watched Erlang the Movie before, this is truly a gem: [this video] This is a great way to explain the benefits of Erlang. Anyone who has tried to write robust, distributed systems should immediately see the benefits. Even all of these years later.
Great explanation of Erlang's benefits for robust systems

Citations, criticism and jokes

@dmitriid Oct 2020 Cites it
on HN thread A Brief Guide to OTP in Elixir
This is the original video in its 90s glory: [this video] Regardless of where the call is handled, you can't just deploy a new switch in a telecom network, but you still want to upgrade them. This is where you really want hot code loading.
Original video showing telecom hot code loading
@probst Jan 2021 Cites it
on HN thread Why is signal servers using Java and not Erlang
Hehe, shame this got down voted so much. It's actually a pretty hilarious Erlang joke. They made a video way back showcasing Erlang in the setting it was primarily used: telecom systems. In this video they keep calling and greeting each other. The video can be found here: [this video]
Erlang showcased in a telecom setting

Video list and Hacker News comment labels from HackerTube (prompted by @karpathy), released under ODC-By 1.0, built on the open-index/hacker-news archive. Hacker News data is provided by Y Combinator; comments remain the work of their authors. Video titles, channel names and thumbnails belong to their creators and are shown via YouTube. HackerTube Watch is an unofficial edition. Data export of 2026-10-31.

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