Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A pedagogical explanation for the non-renormalizability of gravity   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.

27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
6
The categories of this paper are: astro-ph
37
The categories of this paper are: supr-con
31
The categories of this paper are: ao-sci
28
The categories of this paper are: alg-geom
30
The categories of this paper are: q-alg
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin