Bun shared-memory threads thread

Category: Pulse
Status: discussion
Sources: discussion
Summary: The Bun shared-memory threads PR (covered in Top stories and Languages) drew a 216-comment HN thread debating whether shared-heap threading belongs in a JavaScript runtime and how application code that assumes single-threaded semantics would cope with real data races.
Why it matters: The volume and substance of the discussion reflect practitioner interest in JavaScript parallelism beyond the worker model.