A pedagogical explanation for the nonrenormalizability of gravity
Abstract
We present a short and intuitive argument explaining why gravity is nonrenormalizable. The argument is based on blackhole domination of the high energy spectrum of gravity and not on the standard perturbative irrelevance of the gravitational coupling. This is a pedagogical note, containing textbook material that is widely appreciated by experts and is by no means original.
 Publication:

arXiv eprints
 Pub Date:
 September 2007
 arXiv:
 arXiv:0709.3555
 Bibcode:
 2007arXiv0709.3555S
 Keywords:

 High Energy Physics  Theory;
 General Relativity and Quantum Cosmology;
 High Energy Physics  Phenomenology
 EPrint:
 10 pages, 4 figures, Latex. V2: typos corrected, some emphasis and clarifications added