  Pure shape dynamics (PSD) is a novel implementation of the relational
framework originally proposed by Julian Barbour and Bruno Bertotti. PSD
represents a Leibnizian/Machian approach to physics in that it completely
describes the dynamical evolution of a physical system without resorting to any
structure external to the system itself. The chapter discusses how PSD
effectively describes a de Broglie-Bohm N-body system and the conceptual
benefits of such a relational description. The analysis will highlight the new
directions in the quest for an understanding of the nature of the wave function
that are opened up by a modern relationalist elaboration on de Broglie's and
Bohm's original insights.
