 The Principle is the most fundamental law of Wolfram’s New Kind of Science, as well as a prominent regularity featured by  (NKS2):  “its implications are broad and deep, addressing a host of longstanding issues not only in science, but also in mathematics, philosophy and elsewhere” (Wolfram 2002: 715). Contrary to Wolfram’s claims, the Principle may not be new to philosophy at all. That “all processes can be viewed as computations” (Wolfram 2002: 715) has often been argued for in the history of philosophy, just as the claim that universal computation is a widespread phenomenon in the natural world (see, e.g., Searle 1992; Putnam 1988 and the entry on  computation in physical systems).  However, Wolfram’s explanation of the Principle includes two further, and more specific, statements: i) No natural system can compute more things than a universal digital computer (see Wolfram 2002: 730), that is, “universal computation is an upper limit on the complexity of computation” (Mitchell 2009: 157); and ii) The computations performed by natural systems are essentially equivalent in sophistication (see Wolfram 2002: 719–726).