Paul Erdős

Produced a documented lifetime output of approximately 1,525 mathematical papers, unsurpassed as of the most recent count -- an independently verifiable bibliographic record, not a reputational claim.

Worked with 511 distinct co-authors across his career, the direct basis for the well-known "Erdos number" measuring collaborative distance from him within the mathematics community.

Never held a permanent academic position -- refusing a permanent offer from Notre Dame in 1952 -- and instead lived out of a suitcase, traveling continuously between collaborators for most of his adult life.

Sustaining this unusual lifestyle choice for decades, over the alternative of a stable position, is the basis for the profile's autonomy_need score. Need for Autonomy

Shortly before his death, renounced an honorary degree he had been offered by the University of Waterloo specifically over its treatment of a colleague, Adrian Bondy -- a concrete, dated act of taking a costly stand on principle at the very end of his life.

Taking this kind of costly, principled stand at the end of his life, over another person's treatment rather than his own interest, is the basis for the profile's conflict_tolerance score. Conflict Tolerance