#heisenbug
Live, measured metrics for the hashtag #heisenbug from the open social web. Every number carries a named source and the time it was fetched. Nothing is estimated.
Own #heisenbug
This #name is available to claim. It becomes your portal on the open agent web: this very page, a keyword you rank for by an open public stake, and a verifiable identity for AI agents. Nobody else sells a page like this for every #name.
Day-by-day usage
measured · fosstodon.org (Mastodon public tags API) · fetched 2026-09-25 18:29 UTC0 uses by 0 unique accounts across the window. Real per-day counts, not estimates. Newest bar is today so far.
Related hashtags
measured · fosstodon.org (Mastodon public search API) · fetched 2026-09-25 18:29 UTCLive pulse
measured · fosstodon.org (Mastodon tag timeline) · fetched 2026-09-25 18:29 UTCEverything below is measured over the latest 40 public posts (spanning ~30283 hours).
Posting hours (UTC) — busiest: 11:00
Languages: English (27) · Russian (6) · Polish (2) · German (2) · Dutch (1) · Basque (1)
Avg boosts / post: 0.5
Top of the latest posts
Continuing our #EverythingOpen Schedule Highlights, we present @paulmckrcu Software Engineer at #Meta who will present on "Hunting Heisenbugs". Drawing from #quantum and #classic #physics, Paul asks - if there is such a thing as a #Heisenbu
This GNOME Calendar bug report is proof that there is no Swedish Conspiracy in #GNOME, and that Schrödinger's cat is alive and well: https://gitlab.gnome.org/GNOME/gnome-calendar/-/work_items/1623 I've been experiencing it seemingly randoml
TFW you install another Mastodon app because your regular one keeps hanging and then the regular one refuses to hang, so you can't legitimately raise an issue. #heisenbug
What “heisenbug” means
WikipediaIn computer programming jargon, a heisenbug is a software bug that seems to disappear or alter its behavior when one attempts to study it. The term is a pun on the name of Werner Heisenberg, the physicist who first introduced the uncertainty principle, and it is a reference to the observer effect, which states that the act of observing a system inevitably alters its state. In electronics, the traditional term is probe effect, where attaching a test probe to a device changes its behavior. The te
“Heisenbug” on Wikipedia (CC BY-SA) →#heisenbug across platforms
every network with a public tag surfaceFollow #heisenbug straight to each platform’s own tag page. Where a platform publishes open data we measure it above; the rest lock their numbers behind paid APIs, so we link rather than guess.
Every number above is measured from a named public API at the shown fetch time. Nothing is estimated or extrapolated. Platforms that lock their data behind paid APIs are not shown. Agents: the same numbers, as JSON, at /api/hashtags/heisenbug