# LINEAGE Index — Forecast vs Actuals ↔ Proto‑Fund
 
| Entry / Diagram | File | Type | Upstream | Downstream |
|-----------------|-------|-------|-----------|--------------|
| **Forecast vs Actuals** | `forecast_vs_actuals.md` | lineage | — | proto‑fund |
| Forecast vs Actuals (SVG) | `forecast_vs_actuals.svg` | diagram | forecast_vs_actuals | proto‑fund |
| Forecast vs Actuals (Animated) | `forecast_vs_actuals_animated.svg` | diagram | forecast_vs_actuals | proto‑fund |
| Forecast vs Actuals ↔ Proto‑Fund Cross‑Map | `forecast_vs_actuals_protofund_crossmap.md` | cross‑map | forecast_vs_actuals | social_security_protofund |
| **Social Security Proto‑Fund** | `../exercises/social_security_protofund.md` | lineage‑exercise | forecast_vs_actuals | IE • MSM • GSM • Medicine |
| Proto‑Fund Worksheet | `../exercises/social_security_protofund_worksheet.md` | worksheet | forecast_vs_actuals | IE • MSM • GSM |
| RTT Engine Triad | `../diagrams/rtt_engine_triad_diagram.md` | diagram | substrate | forecast_vs_actuals |
| Four‑Source Substrate | `../diagrams/four_source_substrate_diagram.md` | diagram | — | RTT engine |
| Mode → Opacity Chain | `../diagrams/mode_opacity_chain.md` | diagram | RTT/2 | TEL • SARG |
| TEL Echo Map | `../diagrams/tel_echo_map.md` | diagram | RTT/1–3 | downstream modules |
| Triadic Super‑Diagram | `../diagrams/triadic_super_diagram.md` | diagram | substrate → RTT engine | TEL • SARG • modules |