Entanglement, No-Signalling, and the Real Path to Quantum Advantage: Foundations, Architectures, and Societal Implications

This paper introduces the foundations of quantum computing, explains why entanglement cannot transmit information on its own, and follows the engineering path toward fault-tolerant systems. It then connects quantum networks, post-quantum cryptography, simulation, optimization, and machine learning to the institutions and standards that determine whether scientific capability becomes socially useful.

• The paper moves from first principles to architectures, making the distinction between a physical resource, an algorithmic speedup, and a deployable system explicit.
• Fault tolerance and surface-code error correction are treated as central engineering constraints rather than footnotes to a promise of quantum advantage.
• The societal section connects cryptography migration, scientific infrastructure, and public capability to the technical limits described earlier.

This document is presented as a public reading copy connected to the Independent Observer program. Its source trail and status remain visible so readers can distinguish a working preprint from a released publication.

This record complements the shorter Volume IV primer: the primer is the public on-ramp, while this paper expands the architecture and societal implications. Neither public entry exposes the matching source file.

The public SSRN record lists 32 downloads and 887 abstract views in the indexed snapshot checked on 30 August 2026. This is a foundational working paper, not a current technology forecast or deployment recommendation; technical milestones and standards require up-to-date primary-source review.