Cognitive Architecture · Feb 2026
Working Memory Limit
7 ± 2 is a myth that won't die. Real
research shows our mental scratchpad is limited to only 4 ± 1
chunks of meaningful info.
01/The Cognitive Reality
Fact Check
THE MYTH
7 ± 2
Miller (1956) measured simple discrimination, not complex thought.
THE FACT
4 ± 1
Cowan (2001) revealed the true limit for meaningful chunks.
02/The Cost of Overload
! Any list or agenda > 4 items triggers
involuntary re-reading.
! Prose paragraphs mask this: readers lose
track of concepts without realizing it.
03/Cheating the Limit
Optimization
+ Hierarchical Chunking:
Indentation groups related items into single
"super-chunks."
+ Semantic Boundaries:
Operators mark the start/end of logical units.
+ Pre-attentive Visuals:
Structure is processed before the brain even starts
"reading" content.
04/The CLN Protocol
= Keep top-level items ≤ 4.
= If
you have > 4 points, group them into nested
chunks.
* Structure is how you cheat the biological
bottleneck. 4 items at a time.