The Soul of The Sims, by Will Wright -- Macintosh HD:XmotiveHarness:src/Motive.c -- Tuesday, January 28, 1997 / 9:25 AM
Francis Tseng

I had just started working at the Maxis Core Technology Group on "Project X" aka "Dollhouse", and Will Wright brought this code in one morning, to demonstrate his design for the motives, feedback loop and failure conditions of the simulated people.