Unverified50% confidenceFactExact time
In 1956, psychologist George Miller proposed the magical number 7±2 theory, and subsequent researcher Nelson Cowan revised this number to 3 to 5 chunks of information in 2001.
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8/31/2026
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VerifiedPsychologist George Miller proposed the "magical number 7±2" in 1956, revealing the bottleneck of human working memory.80% similarUnverifiedGeorge Miller's 1956 paper "The Magical Number Seven, Plus or Minus Two" noted that humans can simultaneously process 4–7 chunks of information.72% similarVerifiedPsychologist George Miller proposed the "7±2" rule in 1956, positing that working memory capacity is approximately 7 chunks70% similarUnverifiedAI在解决困扰学界60年的埃尔多斯1196号本原集猜想时，引入了原本用于素数研究的冯·曼戈尔特函数65% similarVerifiedClassic research by psychologist George Miller shows that human working memory can only process 7±2 chunks of information at a time.63% similar
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