Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The third cosmological paradigm   I begin by briefly discussing the first two cosmological paradigms, the hot
big-bang model and $\Lambda$CDM. In discussing the third paradigm, I focus on
the issues it must address, what its aspirations should be, and how it might be
initiated. I end with a brief history of my collaborations with Frank Wilczek.

10
The categories of this paper are: q-bio
13
The categories of this paper are: quant-ph
22
The categories of this paper are: chao-dyn
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
31
The categories of this paper are: ao-sci
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
30
The categories of this paper are: q-alg
34
The categories of this paper are: chem-ph
27
The categories of this paper are: comp-gas
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
19
The categories of this paper are: eess
11
The categories of this paper are: hep-lat
2
The categories of this paper are: math