The model had no downward force on Performance, so its only flow (improvement) could only pull it up. Performance rose 40 -> 60 while the Standard fell 80 -> 60, contradicting the "slide downhill" story. Add a constant decay outflow on Performance and seat it just below the goal. Now both ratchet down in lockstep (Performance 70 -> 10, Standard 80 -> 20), a fixed gap apart — the genuine eroding-goals trap. Rewrite the doc-comment, layout note, overview line, and blurb to match.
39 KiB
39 KiB