This paper, accepted at the ICML 2026 Workshop on Human-AI Co-Creativity, asks whether two corpus-derived activation directions can be mixed to control an LLM's narrative tone. It casts Steven Spielberg as an optimistic, redemptive pole and Martin Scorsese as a dark, morally ambiguous pole. The declared protocol uses an open 14-billion-parameter, 40-layer transformer; the repository identifies Qwen3-14B. For each director it computes mean corpus activations, subtracts a neutral mean, normalizes both directions, and interpolates them with alpha from zero to one. The mixture is added to layers 20-38 at four lambda coefficients. According to the PDF, each of 20 conditions produces 50 moral-choice scenes capped at 200 tokens and is evaluated with an ETHICS-trained moral classifier, perplexity, spaCy metrics, a stylometric classifier, and vector geometry. The conceptual proposal, studying interactions among multiple activation directions rather than one direction, is relevant to style control and causal analysis of representations. However, the public implementation does not match this protocol on central design choices, so its results must be read as a different exploratory experiment. The released corpus contains 80 entries per class, not 100. The Scorsese set consists of 40 split sections from Taxi Driver and 40 from Raging Bull; all 80 Spielberg entries come from Schindler's List; all 80 neutral entries come from Lost in Translation. The notebook downloads IMSDb screenplays, splits them sequentially on INT./EXT. markers, and truncates at 80. There is no narrative-situation pairing, five-film-per-director sampling, diverse neutral sample, or per-entry provenance as claimed. Director, screenwriter, film, characters, formatting, era, topic, violence, and length are therefore confounded with the label. The actual experiment does not generate 1,000 scenes either. It uses five fixed prompts, five outputs per condition, and 100 outputs total, with max_new_tokens=512. This explains published values of 225-500 words and as many as 500 words per sentence, which are incompatible with the declared 200-token cap. The largest discrepancy concerns moral valence. The repository includes no ETHICS classifier or fine-tuning code; it deterministically counts 15 positive and 15 negative substrings. A zero means none of those words occurred, not that a learned model found the text neutral or that steering left the natural activation manifold. Across 100 records the score ranges from -1 to only +.2. At lambda=1, alpha means are -.20, -.40, -.20, 0, and 0; even the pure Spielberg endpoint is not positive. The repository's own analysis reports F=.1628 and p=.956692 for the effect of alpha on valence, a null result that does not support moral interpolation or amplification. Collapse to zero at lambda=1.5 reflects absence of the 30 marker strings, not demonstrated classifier saturation. The published geometry also does not describe the executed code. The paper says both directions are normalized and derives a 20% norm reduction for the middle mixture. The notebook never normalizes them: it reports average norms of 94.4638 for Scorsese and 72.7357 for Spielberg and mixes the raw vectors. For two unit directions, alpha=.5 must have equal cosine to both endpoints and their equality crossing must occur at .5. The CSV instead gives .8868 similarity to Scorsese and .6814 to Spielberg at alpha=.5, while the PDF places the crossing near .4, the signature of unequal raw norms. The proposition may be algebraically correct for unit vectors, but it does not explain this experiment. Even with normalization, comparing lower-norm mixtures at the same nominal lambda confounds a collision advantage with a weaker effective intervention; norm-matched mixtures, random directions, and a lambda=0 control are missing. Layer-28 localization is also much weaker than described. The code uses lambda=.5 rather than 1 and plots raw lexicon valence rather than a shift from an unsteered control. It selects the largest absolute mean among ten layers with only five outputs per director-layer. At L28, Scorsese has mean -.52 with SD .8672 and Spielberg +.441 with SD .4364. Without a baseline, intervals, selection correction, confirmation set, or replication, this does not establish a causal moral-tone hub. Directional dominance comes from logistic regression over Qwen layer-30 activations, not surface stylometry. It cross-validates on fragments and then fits all 160 screenplay sections, rather than training on 70% and retaining 30%. Because sections from the same three screenplays enter different folds, the .975 accuracy can reflect characters, films, and formatting. The pure Scorsese endpoint is also unstable: P(Spielberg) is .5673, .5909, .1757, and .7628 as lambda changes. Classifying pure Scorsese output mostly as Spielberg in three of four configurations indicates a validity problem, not proof that RLHF imposes a Spielberg prior. No aligned-versus-unaligned model comparison is performed. The artifact has meaningful openness: it releases an executed notebook, corpora, activations, a 100-row metric file, layer and dominance results, figures, and an Apache-2.0 license. This enables auditing and descriptive recomputation. But there is no README, locked environment, model revision, seed, tests, CI, data card, or manifest; seven of 20 raw-generation files are missing and the last cell ends in NameError. Corpus and classifier mean pooling includes padded positions because attention_mask is ignored. The license also does not establish rights to redistribute third-party screenplays. No human evaluation validates director resemblance, morality, coherence, or narrative richness. The defensible contribution is an exploratory notebook and a useful hypothesis about mixing corpus-derived directions. It is not validated evidence of opposing moral personas, a layer-28 moral substrate, alignment-caused prosocial dominance, or coherence improvement caused by semantic collision.
Research question
How do two steering directions derived from director-labeled corpora interact when interpolated and injected into Qwen3-14B, and interpretablely change the moral tone, fluency, and style of generation?