That idea has been developed and extended in Edward de Bono's popular "Six Hats" system for decision-making discussions.

FORBES

Crowns tells the story of six African-American women through the hats they wear to church.

NPR: 'Crowns: Portraits of Black Women in Church Hats'

But replacing six or seven (or more) hats in the span of just a decade is a logistical impossibility.

FORBES: Peak Oil and ERoEI: Still Nonsense