Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The Rubber band and the Ruler   In this short presentation, we address two somewhat separate issues. The
first one deals with the establishment (vs discovery) of what we call "physical
laws". The discussion runs on a "successive approximations" approach, suited to
our own thinking process, and aiming at the "simplest \emph{possible}
formulation ", as opposed to the idea of pre-existing laws to be discovered. In
the second part, we review briefly an approach to the (observed) metric
originating from a short distance fractal structure, and remind how a
symmetrical situation can arise from mere re-summations.

14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
30
The categories of this paper are: q-alg
12
The categories of this paper are: nucl-th
28
The categories of this paper are: alg-geom
10
The categories of this paper are: q-bio
2
The categories of this paper are: math
34
The categories of this paper are: chem-ph
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
15
The categories of this paper are: nucl-ex
1
The categories of this paper are: cs
16
The categories of this paper are: stat
37
The categories of this paper are: supr-con