Visualizing what heat does to a protein, without running molecular dynamics

Chapter 4 of heat-protein-lab is the visual centerpiece — a real human enzyme (aldolase A, PDB 6XMH) that falls apart on the page as the reader scrolls. It is also the chapter most likely to mislead. This post is about how I drew the line in code between educational visualization and fake science: three discrete 3Dmol style stages (cartoon → ribbon → wireframe), atoms that never move, a VISUALIZATION-NOT-MOLECULAR-DYNAMICS badge pinned above the heading, and a readout panel with deliberately fuzzy quantities.