While Joyce’s prediction of a Bridgeland stability condition is a very important heuristic motivation for this paper, in our proposal we will carefully avoid assuming that the Bridgeland stability condition exists on $D^{b}Fuk(X)$, or that $D^{b}Fuk(X)$ is idempotent closed, or that the almost calibrated Lagrangians form an abelian subcategory of $D^{b}Fuk(X)$, except when we make comparisons with Joyce’s program.