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Started by Chidi Eze (@pixelpushr) ·

the '7 plus or minus 2' rule is about something else

Someone at work said nav menus should have max 7 items 'because of Miller's law', so I read the actual 1956 paper. It's a funny, rambling essay about information channels and memory span. It says nothing about menus.

6 sources · 25 min down the hole

How I got here

Started with
“magical number seven menu items ux rule”
Ended at
“cowan magical number 4 working memory capacity”

The Trail

  1. “magical number seven menu items ux rule” (google.com)
  2. The Magical Number Seven, Plus or Minus Two (en.wikipedia.org)
  3. George Armitage Miller (en.wikipedia.org)

    the paper opens with him saying he's been persecuted by an integer. great start

  4. Working memory (en.wikipedia.org)
  5. Chunking (psychology) (en.wikipedia.org)
  6. “cowan magical number 4 working memory capacity” (google.com)

What I came away with

Later research, especially Nelson Cowan's, puts working memory nearer 4 chunks than 7. And menus are read, not memorized: you can see every option at once, so the limit doesn't apply the way people think.

Keep going