Buzz Aldrin

A health system that lacks commodities for managing high-mortality infectious diseases and the main killers of mothers and young children will not have an adequate impact. By the same token, even the best-stocked delivery system will have an inadequate impact if it fails to reach the poor.

By irreducibly complex I mean a single system composed of several well-matched, interacting parts that contribute to the basic function, wherein the removal of any one of the parts causes the system to effectively cease functioning.