Magical Number Seven The Magic Number 7 ±2 Miller in 1956 ("The Magical Number Seven, Plus or Minus Two: Some Limits on Our Capacity for Processing Information") Miller showed a number of remarkable coincidences between the channel capacity of a number of human cognitive and perceptual tasks. This was the number seven plus or minus two (7±2). Read the original article Much has been quoted about Millers Magical Seven, before we explore the basics on this page you may wish to read the … [Read more...] about Miller Magical Number Seven