On Pearl's Hierarchy and the Foundations of Causal Inference

Provides a canonical overview or reference point for the relevant DoOperator research area.

An overview of the Pearl Causal Hierarchy and the formal distinctions between associational, interventional, and counterfactual queries.

Use when orienting a new paper, blog post, benchmark, or research plan in this area.

Do not cite the overview as evidence that a specific method works in a specific deployment setting without checking the underlying primary paper.