The title is from "Federico Ardila on Math, Music and
the Space of Possibilities," a podcast from Steven Strogatz's
Quanta Magazine series. The transcript is dated March 29, 2021.
Ardila: … in a nutshell, what combinatorics is about is just
the study of possibilities and how do you organize them,
given that there’s too many of them to list them.
Strogatz: So, I love it. Combinatorics is not just
the art of the possible, but the enumeration of the possible,
the counting of the possible and the organizing of the possible.
Strogatz: It’s such a poetic image, actually: the space of possibilities.
This journal on the podcast date, March 29, 2021 —
A more precise approach to the space of possibilities: