Photon self-interference interpreted as "inside-out" dynamic My website's first article, "P-Duality: Quantum Mechanics Inside-Out," explains my concept of the inverse wavefunction, applicable to the virtual realm and its real interactions. The double-slit experiment was Feynman's favorite demonstration of quantum mechanics. It raises the questions of how individual particles can interfere with themselves and how the act of measurement can interfere with observation outcome. I address the problem of the double-slit experiment by explaining that photons have an "inside-out" phase character, correlated at a primal event. Inverse phase space contains compactified within the photon all information of its conventional phase space. Thus a single photon enables self interference between its interior (virtual) and exterior (real) wavefunctions. In effect, the dynamical universe is inverted through the photon action. Our phase space is part real, part virtual, and part mixed - part subliminal, part superluminal, and part luminal. The observer perspective is that of self, other and their correlation. Can you appreciate the possibility that the photon itself naturally carries the information needed to perpetuate self-interference through the interactions between the inverse wavefunction and its conventional counterpart?