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Data Counterfactuals Training, evaluation, and trust worlds
Memo #1 Grid Memos Related Work
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Graph Subset-lattice companion that treats dataset edits as graph moves API Request/response style explorer for querying grid and graph state directly 3D Viewer Heavier prototype with the more complex 3D visualization
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Explore the site Memo #1 Launch memo: what data counterfactuals are and why they matter Grid Interactive toy grid for exploring train/eval counterfactuals Memos Written notes, the lightweight course path, formalisms, and more Related Work Curated shelf of neighboring literatures and representative papers
Interactive tools Graph Subset-lattice companion that treats dataset edits as graph moves API Request/response style explorer for querying grid and graph state directly 3D Viewer Heavier prototype with the more complex 3D visualization
Project links GitHub ↗

Memos

5 memos
  • March 13, 2026 13 minute read 2790 words

    1. Introducing Data Counterfactuals

    A shared launch post and site memo arguing that many questions about value, data dividends, selection, privacy, poisoning, evaluation, and data leverage are really questions about what changes when data worlds change.

  • May 12, 2026 4 minute read 788 words

    2. When the Column Changes

    Evaluation data as a data counterfactual: how a holdout point can change measurement, confidence, or decisions even when it never trains the model.

  • April 2, 2026 3 minute read 651 words

    3. Loose Syllabus

    A lightweight open-course path through the site: readings, explorer prompts, and a few extension weeks.

  • March 11, 2026 20 minute read 4507 words

    4. Formalisms

    A draft memo lining up several tasks that fit the data counterfactuals frame: influence, valuation, evaluation value, selection, distillation, unlearning, privacy, poisoning, and other neighboring cases.

  • March 11, 2026 7 minute read 1624 words

    5. Glossary

    Working definitions for the key terms used across the memo, explorer, and related areas and papers page.

Explore the site

Memo #1 Grid Memos Related Work

Interactive tools

Graph API 3D Viewer

Project links

GitHub ↗