High openness alone produces a dilettante. "If you're just open, you could just be curious and explore and spend your entire life reading, talking to people, but never actually create something."

Conscientiousness is the multiplier on openness: "You need somebody who's really willing to apply themselves—typically over a period of many years to accomplish something great... an extreme willingness to basically defer gratification."

Real innovators are rare because the required traits are in tension. Openness and conscientiousness are "to a certain extent, opposed traits"—the explorer and the disciplined executor rarely live in the same person.

Disagreeableness is structural armor: "If they're not ornery, they'll be talked out of their ideas... the reaction most people have to new ideas is 'Oh, that's dumb.' So somebody who's too agreeable will be easily dissuaded."

High IQ is non-negotiable because "it's hard to innovate in any category if you can't synthesize large amounts of information quickly."

Low neuroticism is the final filter—"if they're too neurotic, they probably can't handle the stress" of sustained creative risk-taking.