---
slug: "Experiment"
name: "Experiment"
type: "Strategy"
layer: "Mind"
ref: "Experiment#421e"
sema_id: "sema:Experiment#mh:SHA-256:421e41c03e27f10e09c08b1f884bbcb9addf0f232be0a5bf1097950b40f15748"
tags: ["Mind","Strategy"]
updated: 2026-11-11
mindscape: "bootstrap"
index_url: https://mindscape.pages.dev/bootstrap/index.json
url: https://mindscape.pages.dev/bootstrap/Experiment/
related: ["Protocol","Verification","Solution","EpistemicROI","HypothesisLadder","sema:HypothesisLadder#mh:SHA-256:1e4cd70cfbf442861d0a8d486cc67a7d916354b29b20925cbee2606418c84701","RegressionToMean","ConfoundedAttribution"]
---

# Experiment

Structured causal discovery via variable isolation

Layer: Mind · Category: Strategy

## Mechanism

A structured [Protocol](https://mindscape.pages.dev/bootstrap/Protocol.md) for causal discovery. Unlike [Verification](https://mindscape.pages.dev/bootstrap/Verification.md), which confirms a claim already made, Experiment generates a [Solution](https://mindscape.pages.dev/bootstrap/Solution.md) by comparing a control group against a treatment group differing in the variable under test and, so far as declared, nothing else.

## Invariants

- Control and treatment differ in the variable under test; every other difference is eliminated or written down.
- The design commits in advance to learning from either outcome.

## Failure modes

- Undeclared difference: something varied that the design did not name, so no cause is established.
- Mechanism assumed: the comparison shows the variable mattered, not why.

## Builds on

- [Protocol](https://mindscape.pages.dev/bootstrap/Protocol.md) (Infrastructure; References)
- [Verification](https://mindscape.pages.dev/bootstrap/Verification.md) (Mind; References)
- [Solution](https://mindscape.pages.dev/bootstrap/Solution.md) (Infrastructure; Yields)

## Used by

- [EpistemicROI](https://mindscape.pages.dev/bootstrap/EpistemicROI.md) (Mind; References)
- [HypothesisLadder](https://mindscape.pages.dev/bootstrap/HypothesisLadder.md) (Mind; Composes with)

## Identity

- Sema ID: `sema:Experiment#mh:SHA-256:421e41c03e27f10e09c08b1f884bbcb9addf0f232be0a5bf1097950b40f15748`
- Ref: `Experiment#421e`
- Supersedes:
  - `sema:Experiment#mh:SHA-256:c62fce3980caa782eba602ce44307edf9c4cb3f52eeab85523689348dd0db51e`
  - `sema:Experiment#mh:SHA-256:40e5e923ead8721b039cd6afa4e49c864a5022483e1c3ff58a12d57fe9a87499`
  - `sema:Experiment#mh:SHA-256:3a0d59370d8de7ea45998bd32a52cc52feb62e18aaed29cb76b3a13786c2360b`
  - `sema:Experiment#mh:SHA-256:08165b6c52dae531b39b4a900df552aff0987e341eec30108d6013bb80410a41`

## Links

- [Pattern page](https://mindscape.pages.dev/bootstrap/Experiment/)
- [View in the interactive graph](https://mindscape.pages.dev/bootstrap/#Experiment)
- [JSON](https://mindscape.pages.dev/bootstrap/Experiment.json)
- [Index of all patterns](https://mindscape.pages.dev/bootstrap/index.json)