Base120 · Inversion

Problem Reversal

IN · Inversion

Solve the inverse of the stated problem to reveal insights

Model code
IN3
Transformation
IN (Inversion) — Improve by removing, reversing, or stress-testing assumptions.
Priority
3 of 20
Framework
HUMMBL Base120 — 120 mental models across 6 transformations

When to use

"Use when the forward problem is intractable but the inverse is solvable. Instead of asking how to achieve X, ask what would prevent X from failing, or how to achieve the opposite of X."

Example

"Instead of asking how to make users happy (open-ended, hard to operationalize), ask what makes users angry (specific, actionable). Fixing the anger-causing friction points is more tractable than pursuing abstract happiness."

Common misuse

"Assuming the inverse problem has the same structure as the forward problem. The inverse may have different constraints, different unknowns, and different optimal strategies."

Also known as

Inverse ProblemReverse Engineering

Related models

P17IN1IN19