Every one was 3x to 100x shorter than its source: gwern_tank 179 -> 20132
words, cleanrl 37-details 239 -> 11410, kidger 185 -> 2932. Three passages the
old karpathy_recipe file presented inside quote marks were paraphrases, not
quotes, and are gone with the excerpts.
Add 3 new evidence files from modern open-source sources:
- karpathy_recipe_training_nn_2019.md: Karpathy's training recipe blog post
- nanochat_deepwiki_llm_pretraining_2026.md: 320+ HP sweeps for GPT-2-scale pretraining
- sanh_simple_considerations_hf_2021.md: HuggingFace NLP debugging notes
Add update-to-data ratio diagnostic to refs/diagnostics.md (target ~1e-3).
Add LLM pretraining gap note to SKILL.md intro linking the new sources.
Add tanh saturation % to logging checklist.
wassname