Incompatible Universes, Empty Space, and the Virtual Proposed insertion: arxe_1_core_theory_V3_en.md, as Section 12.6 Builds on: Section 12.1 (Undecidability as foundation), Section 3.5 (Phase ordering principle) Date: March 2026 Note: This section requires careful reading. It is easy to confuse it with Platonism or spiritualism. The distinction is explicit and fundamental. The starting point: objectivity is not absolute The phase ordering…