the.com/openness

the only trait that predicts whether you'll change your mind or die on a hill

means The quality of being receptive to new ideas, experiences, and people — and willing to share or reveal freely rather than guard and conceal.

from Built from the Old English 'open,' which traces back to Proto-Germanic roots tied to the idea of being 'up' or 'raised' — think of a lid lifted, a door swung wide. The '-ness' suffix is the ancient English machine for turning a quality into a thing: open becomes openness, the state of being open. The psychological sense — one of the famous 'Big Five' personality traits — is a modern academic borrowing of this very old, very physical word.

big five
One of psychology's five core personality dimensions
brain wiring
Linked to richer connections between distant brain regions
dopamine
Tied to the same system driving curiosity and reward
creativity
Strongest personality predictor of artistic achievement
fixed-ish
Often peaks in young adulthood, then slowly declines
for instance

radical transparency movement — buffer and other startups publishing salaries, equity, and financials publicly since 2013

open access publishing — arxiv preprints allowing physicists to share research freely before peer review since 1991

freedom of information act — us law requiring government agencies to disclose documents to public requests since 1966

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