Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Spontaneous quantum gravity   This article gives an elementary account of the recently proposed theory of
spontaneous quantum gravity. It is argued that a viable quantum theory of
gravity should be falsifiable, and hence it should dynamically explain the
observed absence of quantum superpositions of space-time geometries in its
classical limit.

24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
30
The categories of this paper are: q-alg
2
The categories of this paper are: math
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
31
The categories of this paper are: ao-sci
37
The categories of this paper are: supr-con
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
8
The categories of this paper are: hep-ex
1
The categories of this paper are: cs