Magical number seven

The "Magical number seven" refers to a theory in psychology proposing that the average number of items an individual can hold in their working memory is about seven, plus or minus two. This concept, introduced by psychologist George A. Miller in 1956, suggests that our cognitive capacity for processing information is limited. When presenting information, like phone numbers or lists, it's often more effective to group items into chunks (for example, breaking a long number into segments) to enhance recall and understanding. This insight has implications in various fields, including education, marketing, and user interface design.