A Pointless Model for the Continuum as the Foundation for Quantum   Gravity
  In this paper, we outline a new approach to quantum gravity; describing states for a bounded region of spacetime as eigenstates for two classes of physically plausible gedanken experiments. We end up with two complementary descriptions in which the point set continuum disappears.   The first replaces the continuum of events with a handlebody decomposition of loop space. We conjecture that techniques fron algebraic topology will allow us to extend state sum models on spacetime to loop space.   The second picture replaces the continuum with a nondistributive lattice; the classical limit seems more tractible in this picture. 
Louis Crane