Abstract
This article delivers an account of what it is for a physical system to be programmable. Despite its significance in computing and beyond, today’s philosophical discourse on programmability is impoverished. This contribution offers a novel definition of _physical programmability_ as the degree to which the selected operations of an automaton can be reconfigured in a controlled way. The framework highlights several key insights: the constrained applicability of physical programmability to material automata, the characterization of selected operations within the neo-mechanistic framework, the understanding of controlled reconfiguration through the causal theory of interventionism, and the recognition of physical programmability as a gradual notion. The account can be used to individuate programmable (computing) systems and taxonomize concrete systems based on their programmability. The article closes by posing some open questions and offering avenues for future research in this domain.
