Chapter 12: The Principle of Computational Equivalence

Section 3: The Content of the Principle

Character of [general] principles [in science] Oracles [for universal systems] Initial conditions [as oracles] Criteria for universality [in systems] Encodings [for universality] Density of universal systems Proving universality History [of universal objects] [Construction of] universal objects Block occurrences [in rule 30]

From Stephen Wolfram: A New Kind of Science [citation]