“…As one consequence, grand challenges are likely to be apprehended in multiple ways, depending on actors' identities and field positions. Or as Simon (1996: 215) explained: -How complex or simple a structure is depends critically upon the way in which we describe it.‖ Moreover, grand challenges are likely to be dynamic and nonlinear, comprised of an evolving set of interlocking issues and constraints (Maruyama, 1963;Senge, 1990), and thus, subject to feedback loops, phase shifts and other tipping points (Chiles, Meyer, & Hench, 2004;Lichtenstein, Carter, Dooley, & Gartner, 2007;Plowman et al, 2007). As a result, it is difficult to shift complex phenomena away from their current state, rendering many grand challenges remarkably immutable.…”