You're Not as Smart as You Think You Are
summary
Claims that human cognition has strict limits: an inattentional blindness demo where roughly half miss a gorilla even though there are 16 passes, a working‑memory ceiling classically framed as seven plus or minus two later revised to about five. Shows subitizing and chunking as the actual coping mechanisms, argues complexity comes from interactions not item count, and points to practicing TDD as a practical tool that forces simpler, verifiable designs.
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