This work has unfolded over more than two decades across clinical practice and high performance environments, often at the intersection of injury, recovery, and return-to-risk decision-making. When tolerance, not capacity influence outcome.

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While many of the observations first emerged in elite sport, they reflect a broader pattern: moments where standard models no longer fully explain outcomes when capacity appears restored, yet performance and decision-making remain unreliable under real-world conditions.

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These reflections are not offered as replacements for existing frameworks, but as an attempt to clarify how those frameworks behave under biological constraint, and to invite dialogue across disciplines investigating or concerned with performance, readiness, and risk.