Alarm fatigue might have played a minor role in Chernobyl but the main cause was authoritarian management trying to meet a scheduled deadline to run a test that

Alarm fatigue might have played a minor role in Chernobyl but the main cause was authoritarian management trying to meet a scheduled deadline to run a test that the reactor was incapable of running safely in its current operational state. They purposely ignored the alarms in order to run the test. There was also a design flaw nobody knew about (positive void coefficient) that caused the scram make things worse, but they'd never have needed to scram if the deputy chief engineer on duty had cared more about safety than meeting his milestone.