tag:blogger.com,1999:blog-10737442.post5979260868102530821..comments2011-11-19T13:36:11.629-08:00Comments on 2Physics: Symmetries, Horizons, and Black Hole EntropyQuarknoreply@blogger.comBlogger1125tag:blogger.com,1999:blog-10737442.post-4177580933789041262007-12-09T23:00:00.000-08:002007-12-09T23:00:00.000-08:00The article is fine except for a few key points : ...The article is fine except for a few key points : (1) Black hole entropy originates from sptm quantization; semiclassical GR ignores this and can at best play `Old Quantum Theory' to genuine quantum approaches like LQG. (2) Isolated Horizons were proposed in the late 1990s and satisfy most `horizon constraints' without ever needing adhoc coordinate-dependent stretching. (3)DOF of IH are describedParthanoreply@blogger.com