Like a powerful, hardly perceptible wall, the psychoanthropological b a r r i e r lies between t h e group formulations t h a t characterize social psychology, sociology, and ethnology and the subjective reasoning that characterize individual modes of thought. More obviously, but equally a s formidable, are the epistemological differences separating researchers within each of the scientific disciplines. As a consequence, humanities, behavioral sciences and biological sciences in general, and general systems in particular, lack t h e connectivity necessary f o r the broad unified approach that is prerequisite to applying multidisciplinary research to complex social, personal, ethnic, and gender problems. Eigen & Winkler's game theory optimization, together with r e c e n t developments i n mathematics, microgenetics and ethnology, make it possible to integrate the social physics of Nicolas Rashevsky and the game theory formulations of Anatol Rapoport to produce Synchrony, a unified approach, which though not a seamless web, comes as close to a seamless web as is theoretically possible. But in accepting Synchrony, behavioral scientists must first learn to play GO, then adopt the concepts of dual cognition, dual time scales, self-reference, chance and necessity. Philosophers a n d ethnologists must deal with ecological "optimizations" of ethics and cultures. And, finally, as far a s groups are concerned, all will have to give up permanent hierarchies, adopt a "feminine" mode of reasoning a s optimal, then accept behavioral science's role of "Guardian of Time's Feminine Arrow".