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Computational Substrate Independence

Jincheng Zhang

Published Aug 20, 2026• 0 citations
Publisher

Abstract

This paper introduces the concept of Computational Substrate Independence, a theoretical framework designed to address the fundamental question of whether equivalent computational capabilities remain the same regardless of the underlying physical or software substrate. The core challenge lies in defining a rigorous criterion for determining when a computation, expressed in one form, can be faithfully replicated across radically different computational environments – encompassing classical computers, quantum computers, neuromorphic systems, and potentially entirely novel computational media. The paper lays out the key principles of this theory, focusing on the preservation of algorithmic information and the transformation rules necessary to achieve substrate independence. It explores the implications of this concept for various emerging computing paradigms and proposes a formalization of the necessary conditions for substrate-independent computation. The central argument posits that the essence of computation resides not in the specific implementation, but in the logical structure and information flow represented by the algorithm.

DOI
10.5281/zenodo.22021080

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