Miller's Law

If

"The Magical Number Seven, Plus or Minus Two" — human working memory holds only about seven chunks at once. Cross that limit and recall collapses; the brain drops items rather than slowing down.

Then

Group related items into a handful of named chunks — phone-number style — wherever a person must hold state in their head: function arguments, form fields, menu groups, on-call steps.

Unless

Chunking / Information Hiding