True Scientific Understanding (TSU) v1.0

True Scientific Understanding (TSU) is a scientifically restrained interpretive scaffold that seeks improved coherence across scientific understanding while preserving existing scientific theory, empirical evidence, mathematical formalism, regime-local discipline, and uncertainty wherever certainty cannot yet be justified. TSU does not propose replacement physics, replacement mathematics, hidden variables, or a universal theory of everything. Instead, it explores whether concepts such as uncertainty, possibility, context, coherence, actualisation, and Recursive Trace may provide a useful interpretive language for relating scientific ideas across domains while preserving the methods and constraints specific to each discipline. TSU develops from the conceptual foundations established in the Conceptual Model of Understanding (CMU) and the structural relations described in the TU Invariant Structural Framework (TU-ISF). Its purpose is not to supersede scientific knowledge, but to provide a disciplined interpretive scaffold for considering how different scientific descriptions may relate to one another while remaining accountable to empirical evidence and mathematical rigor. This document introduces the role, scope, limitations, and scientific orientation of TSU. More specialised scientific explorations are developed separately through companion papers addressing specific scientific domains and boundary questions.