It seems to be easy to hold seven familiar phone numbers in short-term memory even though the actual phone numbers contain a total of 49 digits.

Question

Quizplus · Accepted Answer

This is known as Miller's Law, which suggests that an average person can only remember 7 (plus or minus 2) items in their short term memory. In the case of phone numbers, people tend to chunk the numbers into smaller groups, making them easier to remember. Therefore, it is possible to hold seven phone numbers in short-term memory, even though the total number of digits is 49.

It Seems to Be Easy to Hold Seven Familiar Phone