Henry Lin, a physicist at Princeton University, continues his review of the BFSS matrix model at the Institute for Advanced Study's Prospects in Theoretical Physics program. The BFSS conjecture, proposed by Banks, Fischler, Shenker, and Susskind, claims that M-theory in certain limits can be fully captured by a quantum mechanical system of large matrices rather than strings or branes. Building on a first session, Lin works through the technical machinery supporting the conjecture, covering how the matrix degrees of freedom reproduce eleven-dimensional supergravity and where the correspondence has been tested numerically. He addresses open questions about the conjecture's precise regime of validity and the evidence from lattice simulations of the matrix quantum mechanics. The talk assumes familiarity with string theory and quantum field theory, pitched at researchers rather than newcomers, and runs through the blackboard-style argument typical of the IAS seminar series rather than a polished presentation.