Hysteresis (noun)
- the dependence of the state of a system on its history
- the lagging of an effect behind its cause
- an event that persists even after the factors that led to it have been removed or otherwise run their course
- any phenomenon similar to above in any discipline that lacks stringent mathematical definition
https://www.hanselman.com/blog/the-code-worked-differently-when-the-moon-was-full
DataSpun 