This article introduces the Zero-Distinction Baseline (ZDB) as the baseline of possible reality. ZDB is not a physical state, not a substance, not a process, and not a limit. It is the logical condition that defines when something can appear as a distinguishable manifestation. All physical phenomena—superfluidity, waves, fields, matter, plasma, and spacetime—are understood as differentiations relative to this baseline. A differentiation spectrum is introduced, together with minimal mathematical structure and a vector-style diagram.
Omni-Coherence Research Group (Thu,) studied this question.