Quantum-Geometry Dynamics (QGD) establishes on two independent grounds that quantum computational speedup is physically precluded: ontological superposition does not exist in the preonic universe, and gate operations are irreversible causal events from which no exponential parallelism can be extracted. This paper demonstrates that the exact axiomatic structure that forecloses quantum computation physically mandates a categorically different computational substrate. Because gravity in QGD is instantaneous, unshieldable, and amplified—not attenuated—at cosmological distances through the n-gravitational interaction G^- (a;b) = mₐ mb (d²+d) /2, the finite preonic universe constitutes a naturally occurring, globally coupled computational system. This paper derives three principal results: The Gravitational Feedback Amplification Theorem (GFAT): Any locally encoded causal signature can be raised above the gravitational background noise in a finite, computable number of feedback cycles, with a causal depth fixed at exactly 2 per cycle regardless of spatial separation. Observational Gravitational Tomography: The amplified return signal carries quantitative information about the mass, spatial separation, and directional position of all participating cosmological masses. This constitutes a fundamentally new observational modality accessible in real causal time, bypassing the historical delays of electromagnetic observation. Physical Encoding and Capacity Limits: Identification of compatible forward-causal algorithm classes, characterization of the physical write and read mechanisms (via controlled photon delivery to target structures and isotopic decay rate modulation), and the derivation of the gravitational channel's bounded computational capacity (C₆ₑ₀ₕ = c ₂ (M) ). The anti-classical nature of the QGD gravitational channel establishes that spatial separation is not a propagation penalty, but an amplification resource.
Daniel Burnstein (Thu,) studied this question.
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