Flatland, Waves, and the Geometry of Reality

This paper proposes a geometric interpretive framework for a set of foundational phenomena in quantum physics, including the measurement problem, quantum entanglement, and the emergence of classical spacetime structure. Building on the dimensional analogy introduced by Abbott (1884), we develop a model in which observed physical events correspond to lower dimensional intersections of higher-dimensional wave-like structures with an observer's accessible domain. Within this picture, a particle detection event is reinterpreted as the intersection of an extended wave with an observer's plane, and measurement outcomes arise from the geometric relationship between the observer's orientation and the underlying structure, rather than from a physical collapse process. In the context of entanglement, we develop a model in whichcorrelated outcomes observed by spatially separated detectors are understood as local samplings of a single wave generated at a common origin event . The dependence of measurement correlations on detector settings is interpreted in terms of angular separation along the shared wave front, yielding an account consistent with the standard quantum prediction P(same) = cos²(θ/2). The proposal does not modify the mathematical formalism of quantum mechanics and does not introduce novel quantitative predictions at this stage. Its contribution is conceptual: it provides a coherent geometric perspective that unifies several interpretive challenges—wave–particle duality, the measurement problem, and apparent non-locality—within a single structuralpicture. Connections to relational quantum mechanics, holographic duality, and the ER = EPR conjecture are identified as indications of structural compatibility. Open questions and possible directions for formalization are outlined.