The $20 Million/Year Personality Quiz 89% Of Fortune 100s Swear By

TL;DR

The video explores the history and business model of the Myers-Briggs personality test (created by Isabel Briggs Myers in 1942, based on Carl Jung; publisher CPP earns $20M+/year via practitioner certification fees and per-test charges; 89% of Fortune 100 use it despite low retest reliability). It then contrasts the scientific limitations of the "grit" test from Angela Duckworth (speaker scores 2.

Key insights

• Myers-Briggs was created by a mother-daughter duo after an article in Reader's Digest about companies using personality sorting (e.g., Lockheed finding troublemakers, another finding henpecked husband
• The Myers-Briggs business model: practitioners pay $1,500–$2,000 to become certified; each practitioner then administers tests for $15–$40 (practitioner keeps ~$30, publisher gets ~$10 royalty). CPP e
• The grit test (Angela Duckworth’s Grit Scale) measures passion and perseverance on a 1–5 scale. The speaker scored 2.5/5 (bottom 10th percentile) and a co-host scored 3.5/5 (above only 40% of American