# \#book-beam-book

**URL:** https://erlangforums.com/tag/book-beam-book/1077.md

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## [BEAM There, Done That with Erik Stenman on the BEAM Book Origin, Scheduler Reductions and AI Compute Sovereignty](https://erlangforums.com/t/beam-there-done-that-with-erik-stenman-on-the-beam-book-origin-scheduler-reductions-and-ai-compute-sovereignty/6054)

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**Author:** [@ancatrusca](https://erlangforums.com/u/ancatrusca)\
**Replies:** 0\
**Last updated:** [October 16, 2026, 10:12am UTC](https://erlangforums.com/t/beam-there-done-that-with-erik-stenman-on-the-beam-book-origin-scheduler-reductions-and-ai-compute-sovereignty/6054 "2026-10-16T10:12:07Z")

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New BEAM There, Done That with Erik Stenman (Happi), Erlang researcher since 1994 and author of the BEAM Book. The production story is directly relevant here: on Christmas Eve at Klarna, the BEAM scheduler throttled to …