A 5D Kaluza-Klein Embedding of Cursor Dynamics: Charge, Bulk Latency, and Non-Markovian Open-System Projection

This preprint develops the geometric embedding layer of the MetaTime framework within a 5D Kaluza–Klein architecture. Localized charged observables are modeled as brane intersections of compactified bulk filaments, with electric charge identified as conserved momentum in the compact fifth dimension. The manuscript derives an effective open-system projection for the observable cursor, including finite bulk relaxation, non-Markovian latency, and generalized memory kernels. It also states explicit kill tests for the higher-dimensional construction, including the Kaluza–Klein mass hierarchy problem, spin reconstruction, and consistency of effective action scales. This work is presented as a conditional geometric completion of the MetaTime program rather than as an established physical sector.