An observational paper extending the previous chapter-3 reading of Shimizu Akira textbook New Edition: Foundations of Quantum Theory (Saiensu-sha, 2003) to chapters 4-5. Seven thought experiments unify measurement precision, uncertainty relations, wave packets, quantum correlations, the algebra of observables, the ontology of physical quantities, and the finite-width structure of particles. Carries the five thought experiments of the previous paper (v3. 0. 1) and adds two new ones: (VI) physical quantities as quantities over a complex phase space and (VII) particles as rectangular phase-energy windows whose observed wave forms are Fourier low-order partial sums. The central reading positions phase-space invariants as symplectic capacities represented by de Gosson quantum blobs (Foundations of Physics 2013). The paper does not modify the mathematical predictions of standard quantum theory; it offers a conceptual rereading consistent with the calculational formalism within the scope of chapters 1-5. Born rule is preserved as the inner-product projection step p (a) = ||². Related work includes de Broglie double-solution, Madelung hydrodynamics, Bohm pilot wave, Skyrme/MIT bag/Q-ball solitons, Slepian-Pollak prolate spheroidal wave functions, Hardy uncertainty theorem, coherent states (Schrodinger/Glauber), and de Gosson-Luef symplectic capacities.
Noriaki Kihara (2026) studied this question.