George A. Miller

George A. Miller (1920–2012) was an American psychologist and a founder of cognitive science whose 1956 paper "The Magical Number Seven, Plus or Minus Two" imported Shannon's information theory into psychophysics, framing the human rater as a communication channel and naming the "channel capacity of the observer" — the ceiling, around seven-plus-or-minus-two categories, on how much information absolute judgment along a single dimension can transmit. It is among the most cited papers in the history of psychology.

He matters to this vault as the buried explanatory root of its rating-scale cluster: the information-theoretic reason a single-axis source-rating scale tops out at a handful of categories, reached on 2026-08-11 by tracing Samet (1975) back through Bendig (1954) into Miller's tradition. The vault had extensively mapped the two-axis source model without ever accounting for why each axis has the number of levels it does; Miller supplies that layer.

References

• claim-miller-1956-channel-capacity-limits-absolute-judgment-categories — the channel-capacity ceiling on rating-scale category counts.
• observation-admiralty-code-scale-length-descends-from-millers-channel-capacity — his tradition as the root of the Admiralty Code scale-length lineage.
• claim-samet-1975-argued-for-more-rating-categories-not-fewer — the 1975 application of his tradition to intelligence rating scales.