A pedagogical explanation for the non-renormalizability of gravity
classification
✦ hep-th
gr-qchep-ph
keywords
gravityargumentpedagogicalappreciatedblack-holecontainingcouplingdomination
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We present a short and intuitive argument explaining why gravity is non-renormalizable. The argument is based on black-hole 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.
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