Moving on from Newton’s theory of absolute time as independent of absolute space, we take causality as absolute, and this leads us to take up Minkowski geometry. For physics, we demote time from a principal fundamental notion, a notion that together with space defines the eternal absolute Newtonian-Platonic receptacle; we demote time to an abstraction that measures concrete adventures. The eternal absolute receptacle is no longer a primary abstraction for us.

What now for physics is conceptually primary and absolute in its place?

Causality, the absolute causal structure of adventures, of causes and effects, of processes, and, abstractly, of point-events, is the most fundamental concept and the most general law of nature.

Christopher