Experimental Reason, Nature, Mutation

While the greatest contemporary rival to the Newtonian concept of 'nature' is typically regarded as Einstein's version, the more profound challenge to it is presented by Darwinism.  For, the process of Mutation entailed by the latter reduces easily neither to the Efficient Causality that governs both those versions, nor to the Teleological Causality that governs their Aristotelian ancestor.  Instead, Mutation is an instance of what has been previously introduced here as 'Material Causality', defined as 'Becoming-Diverse', and, thus, as not to be confused with the familiar, but vague, Aristotelian notion that goes by the same name.  Now, Experimental Reason can be conceived as both an instance of Material Causality, and of Mutation, and, hence, as a natural event that none of those prominent systems of 'nature' can recognize, unlike that of Lucretius, with its principle of Swerve.