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<html xmlns="http://www.w3.org/1999/xhtml"><head><title>schroedinbug</title><link rel="stylesheet" href="../../jargon.css" type="text/css"/><meta name="generator" content="DocBook XSL Stylesheets V1.61.0"/><link rel="home" href="../index.html" title="The Jargon File"/><link rel="up" href="../S.html" title="S"/><link rel="previous" href="scary-devil-monastery.html" title="scary devil monastery"/><link rel="next" href="science-fiction-fandom.html" title="science-fiction fandom"/></head><body><div class="navheader"><table width="100%" summary="Navigation header"><tr><th colspan="3" align="center">schroedinbug</th></tr><tr><td width="20%" align="left"><a accesskey="p" href="scary-devil-monastery.html">Prev</a><EFBFBD></td><th width="60%" align="center">S</th><td width="20%" align="right"><EFBFBD><a accesskey="n" href="science-fiction-fandom.html">Next</a></td></tr></table><hr/></div><dt><a id="schroedinbug"/><dt xmlns="" id="schroedinbug"><b>schroedinbug</b>: <span xmlns="http://www.w3.org/1999/xhtml" class="pronunciation">/shroh<6F>din<69>buhg/</span>, <span xmlns="http://www.w3.org/1999/xhtml" class="grammar">n.</span></dt></dt><dd><p> [MIT: from the Schroedinger's Cat thought-experiment in quantum
physics] A design or implementation bug in a program that doesn't manifest
until someone reading source or using the program in an unusual way notices
that it never should have worked, at which point the program promptly stops
working for everybody until fixed. Though (like
<a href="../B/bit-rot.html"><i class="glossterm">bit rot</i></a>) this sounds impossible, it happens; some programs have
harbored latent schroedinbugs for years. Compare
<a href="../H/heisenbug.html"><i class="glossterm">heisenbug</i></a>, <a href="../B/Bohr-bug.html"><i class="glossterm">Bohr bug</i></a>,
<a href="../M/mandelbug.html"><i class="glossterm">mandelbug</i></a>.</p></dd><div class="navfooter"><hr/><table width="100%" summary="Navigation footer"><tr><td width="40%" align="left"><a accesskey="p" href="scary-devil-monastery.html">Prev</a><EFBFBD></td><td width="20%" align="center"><a accesskey="u" href="../S.html">Up</a></td><td width="40%" align="right"><EFBFBD><a accesskey="n" href="science-fiction-fandom.html">Next</a></td></tr><tr><td width="40%" align="left" valign="top">scary devil monastery<72></td><td width="20%" align="center"><a accesskey="h" href="../index.html">Home</a></td><td width="40%" align="right" valign="top"><EFBFBD>science-fiction fandom</td></tr></table></div></body></html>