Open questions
The status of productive activity. Can the proposed primitive be characterized precisely enough to show what it explains, what it assumes, and how its costs compare with alternatives?
Metric structure. Can a process account explain quantitative duration and geometric structure without importing the same structure into its premises? This includes demanding cases involving vacuum and stationary solutions.
Local and distributed processes. How should their boundaries, overlap, and integration be specified beyond the existing finite constructions? When do local descriptions combine into a coherent wider account?
Historical and future claims. How far can the present semantics extend to vague occurrences, unrestricted language, negative claims, and incomplete knowledge? Which physically justified possibilities belong in a model of future development?
Empirical discrimination. Which observations could support or count against a particular cosmological or consciousness proposal? Can it explain something that an established alternative leaves unexplained, under comparable conditions?
Comparative philosophy. Where does Changism differ substantively from its closest rivals, and which differences can be assessed without assuming the Changist conclusion in advance?
References and further reading
The bibliography of each paper is the best starting point for checking its sources. References identify arguments to engage with; their inclusion does not imply that those works endorse Changism.
Clocks and relativity. Albert Einstein, “Zur Elektrodynamik bewegter Körper” (1905), Annalen der Physik 17, 891–921.
Causal processes. Wesley C. Salmon, Scientific Explanation and the Causal Structure of the World (1984), Princeton University Press; Phil Dowe, Physical Causation (2000), Cambridge University Press.
Metaphysical dependence. Gideon Rosen, “Metaphysical Dependence: Grounding and Reduction” (2010), in Modality: Metaphysics, Logic, and Epistemology, pp. 109–136; Kit Fine, “Guide to Ground” (2012), in Metaphysical Grounding: Understanding the Structure of Reality, pp. 37–80.
Relational approaches to quantum theory. Carlo Rovelli, “Relational Quantum Mechanics” (1996), International Journal of Theoretical Physics 35(8), 1637–1678.
For the broader Changist account and book-specific bibliographies, visit Books. For shorter explanations and historical comparisons, explore the research essays.
Versions and dated revisions
Research develops through clarification, criticism, correction, and sometimes withdrawal. A reader should be able to identify the version of an argument they are assessing.
Each released paper is identified by title, version, and date. Substantive revisions explain what changed: a premise, definition, argument, result, interpretation, or scope of claim. Earlier released versions remain distinguishable from their replacements. An editorial correction is recorded separately from a change in the position defended.
A date identifies a particular text; it does not certify its conclusions. Likewise, an updated website description does not silently revise the paper it describes.
Contributing criticism
The most useful criticism identifies a specific claim, the passage and version in which it appears, and the reason it may fail. A counterexample, an overlooked source, an alternative derivation, or a stronger rival account can be more valuable than agreement with the programme as a whole.
Replies should address the objection directly and state whether the argument has been defended, narrowed, revised, or left unresolved. The aim is to make the disagreement clearer and the work easier to assess.