We began with the references for the conceptual development of the Ouroboros imagery within Wikipedia.
Self-referential systems, circular reasoning, and tautologies open discussions about how difficult it is to define anything. Perhaps the best way to break free of such explanations requires a deeper intuition about the dimensionless physical constants like Pi (π), the Planck constants, and the constants that help to define the Standard Model for Particle Physics [1] [2] [3]. Here we find out why the universe is homogeneous and isotropic and I would also add, time-independent.
Outside references…
https://en.wikipedia.org/wiki/Ouroboros
https://en.wikipedia.org/wiki/Initial_value_problem
https://en.wikipedia.org/wiki/Inertial_frame_of_reference
The Ouroboros Model by Knud Thomsen
Worldviews limit perspective 