We present a complete mathematical formalism extending Verlinde's entropic gravity framework to derive a variable MOND acceleration scale. Starting from first principles—the holographic principle, Bekenstein-Hawking entropy, and the area law for information—we show that black holes act as entropy sinks creating local pressure gradients in the dark energy field. The formalism derives, without free parameters: (1) the flux-mass relation Φ ∝ MBH² from holographic arguments; (2) the BCG equilibrium condition yielding MBH ∝ Mcluster^0. 4-0. 6; (3) the acceleration threshold scaling a₀ ∝ N^0. 4 from BCG dominance of cluster pressure gradients. The framework extends Verlinde's universal a₀ = cH₀ to a locally variable quantity determined by supermassive black hole distribution, resolving the longstanding MOND cluster problem while maintaining MOND's successes at galactic scales. We provide the complete derivation chain from 5D geometry to observable cluster dynamics.
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Michael N. Jacobs
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Michael N. Jacobs (Sun,) studied this question.
www.synapsesocial.com/papers/697854bcccb046adae516ed7 — DOI: https://doi.org/10.5281/zenodo.18369070