What is perspective disambiguation?

Perspective disambiguation is a concept in personal epistemology: Two contradictory observations may both be accurate from different perspectives.

Example: Your engineering team disagrees about whether your product is 'fast.' The frontend developer says it's slow — the largest contentful paint takes 4.2 seconds. The backend developer says it's fast — the API responds in 80 milliseconds. They aren't contradicting each other. They're reporting from different observation points in the same system. The contradiction dissolves the instant you ask: fast according to whom, measured where?

This concept is part of Phase 19 (Contradiction Resolution) in the How to Think curriculum, which builds the epistemic infrastructure for contradiction resolution.