Bounded Free Will

This paper applies the retrospective methodology of Structural Determination Theory (SDT) to the domain of conscious evolution, deriving a precise account of free will entirely from SDT's single ontological axiom—reality consists of distinctly differentiated structure. The argument proceeds without entering the traditional compatibilism–libertarianism–eliminativism debate from within; it establishes its claims by refutation form, parallel to SDT's self-refutation defense of its axiom and its refutation-style time argument. Four core developments are presented. First, applying all four constituents of the SDT axiom jointly to the premise that consciousness genuinely exists yields the conclusion that consciousness is structure. This is an ontological claim at the SDT meta-level. Second, conscious evolution unfolds through a two-layer determination structure: a forced layer (Type II split) producing the current sensation as an independent structure, and an open layer (Type III merge) integrating the sensation with the prior consciousness into the new consciousness. The two-layer structure is shown to be necessary, not chosen for parsimony, since combining consciousness and external physical structures into a single determination violates SDT's logical-consistency principle. Third, free will in this framework has three aspects: shaping the configuration space through accumulated structural content; non-influence on the determination itself, since openness when admissible-configuration cardinality exceeds one is not closed by any more fundamental fact; and acceptance of the determination's outcome by incorporating it into oneself, where the merge determination's occurrence is itself the acceptance event and accounts ontologically for the subjective sense of "free will" without invoking agency. Fourth, the existence argument takes a refutation form: SDT's meta-level admits two legitimate cardinality configurations of the admissible set, and any position denying the open one in conscious evolution must specify the global constraint and the realized-structure set such that all conscious determinations are restricted to the closed configuration. No position has met this burden of proof. The paper sidesteps the metaphysical baggage of libertarianism (no agent causation), the theological commitments at the limit of complete determinism, and the consistency problems of eliminativism (the subjective free-will feeling has a real ontological position rather than being a post-hoc constructed illusion). The ontological claims are limited to the four developments above and do not extend to the phenomenal aspect of consciousness, the origin of consciousness, the mind–body relation, the cognitive mechanism, or the specific process of will production—these are beyond SDT's scope.