this is beautiful to me: Time from within the material.
via: Receptive Openness to a Message and Its Dative—Materialist Origin of Time, Koichiro Matsuno, 2011
Time from Class Identities
According to the standard practice accepted in physical sciences, the flow of time is relative to the correlated motion of irreducible individual material bodies, though Newton called it absolute because of his unique reference to celestial bodies that are not mundanely Earthbound. The role of the physicist who functions as the dative of time is in the capacity of measuring the correlated motion. Time is assigned to the physicist through the act of measurement of the correlated motion. This observation may raise the likelihood such that time could also be assigned to a material body if it can have the capacity of measurement inside the configuration of material bodies. That is internal measurement [18,28], implying that measurement is ubiquitous on the material basis and is not necessarily monopolized by the physicist.
Measurement makes a distinction between before and after its own act more than anything else. This distinction, though totally foreign to classical celestial mechanics per se, can serve as a harbinger for the genesis of the flow of time on the material basis even without the intervention of the physicist.