# SDIL project introduction deck: visual contract - **Artifact:** Seven-slide, 16:9 English project introduction deck. - **Audience:** Machine-learning researchers new to SDIL. - **Core claim:** A local learner can use the soma-unpredicted component of a mixed apical signal; residualization protects an inherited scalable credit path from predictable traffic. - **Reader questions:** What problem does mixed feedback create? How does the learning rule work? Is residualization load-bearing? Does the combined system scale? Which component supplies each capability? - **Evidence layers:** biological motivation and rule (slide 2), causal ablation (slide 3), standard-ResNet confirmation (slide 4), standard-depth scaling (slide 5), dynamical-task evidence (slide 6), attribution and next experiment (slide 7). - **Source figures:** `results/figs/figure3_innovation.png`, `results/figs/figure4_resnet_confirmation.png`, `results/figs/figure5_bci_v2.png`, and `results/figs/figure6_standard_depth_scaling.png`. - **Statistics:** Five seeds for the controlled traffic and ResNet panels; six task clusters by five model seeds for the synthetic BCI panel. - **Visual grammar:** White background, black text, plain typography, full experimental figures, and cropped experimental panels. One equation slide carries the method. The deck adds zero process diagrams and zero redrawn result charts. - **Exact method labels:** SDIL, raw apical signal, somatic prediction, innovation, reciprocal KP, BP, DFA, local update, neutral observation. - **Output:** Editable PPTX, PDF export, generation source, and rendered QA contact sheet. - **Attribution:** Reciprocal KP supplies clean-setting scale. SDIL supplies soma-conditioned traffic removal and the associated mechanism evidence.