Miller's law can refer to three different principles.

Miller's law was formulated by George Armitage Miller (1920–2012), a professor of psychology at Princeton University, as part of his theory of communication. According to it, one should suspend judgment about what someone else is saying to first understand them without imbuing their message with personal interpretations.

...that in order to understand what someone is telling you, it is necessary for you to assume the person is being truthful, then imagine what could be true about it.

— George Miller^[1][2][3]

The observation, also by George A. Miller, that the number of objects the average person can hold in working memory is about seven.^[4] It was put forward in a 1956 edition of Psychological Review in a paper titled "The Magical Number Seven, Plus or Minus Two".^[5][6][7]

Miller's Law was formulated by Mike Beltzner and is named in respect of Dave Miller, long-standing owner of the Bugzilla product:

All discussions of incremental updates to Bugzilla will eventually trend towards proposals for large scale redesigns or feature additions or replacements for Bugzilla.

— Mike Beltzner^[8]

• Principle of charity