Reverse-Flow Primordial Black Holes as 5D→4D Energy Pumps: Explaining JWST's "Little Red Dots" with a Testable Multidimensional Framework - Weber

JWST’s discovery of mysterious “Little Red Dots” (LRDs) — compact, high-redshift galaxies with red spectral energy distributions and suppressed X-ray/gamma emission — has sparked debate across astrophysics. This paper proposes a bold, testable explanation: a subset of primordial black holes (PBHs) may have entered a reverse-flow phase in the early universe, acting as asymmetric energy pumps from a 5D gravitational reservoir into 4D spacetime. In this model: Energy transfer direction flips — instead of pulling energy into 5D, these PBHs leak energy into 4D, creating a unique spectral fingerprint visible in a narrow redshift window. The emission profile matches LRD observations: red SEDs, compact morphology, and missing high-energy output. Momentum recoil from anisotropic emission alters PBH dynamics, potentially leaving detectable positional offsets. The paper outlines: A timeline of evolution from the early universe to the LRD epoch. Parameter definitions for power flows P5→4P_{5→4}P5→4 and P4→5P_{4→5}P4→5, anisotropy ϵ\epsilonϵ, and radiation fraction ξ\xiξ. Testable predictions — including observational signatures JWST, ALMA, and future infrared missions can confirm or falsify. A higher-dimensional interpretation where curvature gradients in 5D act as energy reservoirs for 4D structure formation. By linking the LRD phenomenon to multidimensional gravitational physics, this framework unites early-universe cosmology, high-energy astrophysics, and extra-dimensional theory into a single falsifiable model — turning an observational puzzle into a potential landmark in our understanding of spacetime.