Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Time and entropy   This paper presents alternative ideas on the physics of time that lead to a
new interpretation of cosmological redshifts. These ideas are based on the
close relationship between the speed of time and entropy processes in our
universe. I give numerical estimates and describe laboratory experiments and
observational effects that can test the new theory.

16
The categories of this paper are: stat
37
The categories of this paper are: supr-con
11
The categories of this paper are: hep-lat
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
36
The categories of this paper are: cmp-lg
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
7
The categories of this paper are: hep-th