- Bond graphs are being explored as a unified modeling framework for physical dynamic systems; a “canonical form” exists that lets you derive state equations from a single large matrix multiplication expression.  
- A paper titled “A unified modeling approach using bond graph method and its application for model order reduction and simulation” includes MATLAB code at the end that demonstrates how to extract state-space equations from a given system.  
- The channel references a 1997 International Journal of Control paper by J. Liu on designing stable systems under uncertainty and constrained performance variations.  
- Links to Stanford CCRMA tutorials were shared for converting difference equations to linear time-invariant (LTI) state-space form and for general state-space control theory.  
- A personal FTP archive at http://adl.serveftp.org/papers/review/ was mentioned as a local repository for relevant papers.  
- Discussion of graphics libraries for 2-D visualization included Allegro, SDL, and VTK as candidate toolkits.  
- A brief aside described a classic mercury “beating heart” demo (Hg + H₂SO₄ + oxidizer + iron nail) as an example of emergent physical dynamics.