Go To Slide: 2001: A Spacetime Odyssey Title The Kerr-Newman Black Holes Horizon area as an adiabatic invariant (continued) Black Hole Quantization? diagrams Verdicts of quantum gravity Black Hole Algebra Elementary Nontrivial Commutators Including horizon area linearity and closure The area spectrum positive differences Area Eigenvalue degeneracy? Connection of A with Black Hole Entropy (continued)