The History and Ultimate Dilemma of Metrology: From Absolute Standards to TFT's Self-Referential Self-Consistency

The entire edifice of physics is built on measurement. All physical laws are essentially statements of measurement relationships. However, the meta-question of "how the measurement standard itself is measured" has been consistently avoided, circumvented, or transformed into an axiom throughout the 300-year history of physics. This paper systematically traces the complete intellectual lineage from ancient Greek geometry to Newton, Maxwell, Einstein, Mach, Wheeler, Gödel, and contemporary quantum metrology, rigorously analyzing the depth reached and the fundamental limitations left by each explorer on the issue of "measurement standards". On this basis, this paper objectively presents the solution of Time Field Theory (TFT): taking "time is the only self-referential measurement standard" as the sole ontological axiom, deriving the flux conservation equation from the pre-physical principle that "existence must be self-consistent", and thereby deriving all classical gravitational laws. This paper does not claim that TFT is "the truth", but only invites readers to judge for themselves which solution is more fundamental, more self-consistent, requires fewer assumptions, and is closer to the underlying logic of the universe in the complete historical lineage.