--- title: "Let It Crash" url: https://daily.dev/posts/let-it-crash-v1pnov6ts source_url: https://verraes.net/2014/12/erlang-let-it-crash type: article source: "Mathias Verraes" published: 2026-06-17T11:25:41.845Z updated: 2026-06-17T11:28:35.228Z tags: ["erlang"] reading_time: 4 upvotes: 0 comments: 0 language: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Let It Crash **[Mathias Verraes](https://daily.dev/sources/verraes)** · 4 min read · 0 upvotes · 0 comments ## Summary A curated selection of passages from Joe Armstrong's 'Programming Erlang' book, exploring the 'Let It Crash' philosophy. The post covers Erlang's process-based worldview, message-passing concurrency as an alternative to shared-state concurrency, supervision trees for error recovery, and immutable data structures. It draws parallels between Erlang's actor model and CQRS/Event Sourcing patterns, arguing that separating problem-solving code from error-handling code leads to cleaner designs and more resilient systems. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [How I Fell in Love with Erlang · Bora Gönül](https://daily.dev/posts/how-i-fell-in-love-with-erlang-bora-g-n-l-dth5r11dj) · Hacker News · 0 upvotes · 0 comments - [The Isolation Trap — Causality](https://daily.dev/posts/the-isolation-trap-causality-cb0lzrekg) · Hacker News · 0 upvotes · 0 comments - [A Review of Joe Armstrong’s “Systems that run forever self-heal and scale”](https://daily.dev/posts/a-review-of-joe-armstrong-s-systems-that-run-forever-self-heal-and-scale--vpnfbxpj5) · Elixir Forum · 1 upvotes · 0 comments - [Code BEAM Europe 2025 - Learning Resources / Talks - Erlang Forums](https://daily.dev/posts/code-beam-europe-2025---learning-resources-talks---erlang-forums-vr2mjhrqp) · Erlang Forums · 0 upvotes · 0 comments --- Tags: [#erlang](https://daily.dev/tags/erlang) [View this post on daily.dev](https://daily.dev/posts/let-it-crash-v1pnov6ts)