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\section{Orthogonal Axes and Risk Perspectives}
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\paragraph{Secondary axes (orthogonal descriptors).}
\begin{itemize}[leftmargin=1.2em]
\item \textbf{Representation:} parametric vectors, symbols/logic, graphs, programs, trajectories, policies.
\item \textbf{Locus of Change:} parameters, structure/architecture, population composition, belief state, policy.
\item \textbf{Objective Type:} prediction, optimization, inference, control, search cost, constraint satisfaction.
\item \textbf{Timescale:} online vs.\ offline; within-run vs.\ across-generations.
\item \textbf{Data Regime:} none/synthetic, labeled, unlabeled, interactive reward.
\item \textbf{Human Participation:} expert-authored knowledge vs.\ learned vs.\ co-created.
\end{itemize}