One Coherence: The Undivided Whole and the Problem of Physical Partition in RCD

The known universe fits the image of a balloon: inside are galaxies, atoms and particles, and what expands is the space that contains them. The primordial coherence of RCD (Radial Coherential Dynamics) is neither the skin of that balloon nor something that fills it: it lies beneath the distinction between around and within, and has no size, position or date. When any part of the universe is taken, by zooming in, down to the irreducible, no smaller coherence appears; one touches the same one again. From this image follows an order of dependence: undivided coherence, cut, quantum relations, spacetime and, only then, fields, matter and energy. The physics of the differentiated regime (interference, decoherence, entanglement, relational time, the geometry of correlation) is kept unchanged and read as the description of what exists after the cut. The note states the identity of coherence as an explicit working hypothesis (H-1), separates primary distinction, quantum partition and record, specifies what Bell's theorem rules out and what it leaves standing, and situates the proposal among its neighbors (Bohm, Schaffer, Spencer-Brown, Zanardi–Lidar–Lloyd, Cotler–Penington–Ranard, Carroll–Singh). The open problem is stated as a single question: how can a structure without partition generate a physically privileged partition without presupposing it? This work distinguishes established physics, interpretive readings, postulates and open derivations; it is an architecture of dependence, not a derivation. Files: English version and Spanish version (the Spanish text is the reference text). Developed with cross-checking among AI tools (ChatGPT, Claude) for drafting, critique and bibliographic verification.