CONCEPT
Foundherentism
Susan Haack's epistemological framework combining foundationalism's experiential grounding with coherentism's mutual support—knowledge as crossword puzzle where beliefs must both match their clues and intersect correctly.
Foundherentism is Susan Haack's integrative theory of epistemic justification, developed in Evidence and Inquiry (1993). It resolves the centuries-old deadlock between foundationalism (which demands self-justifying basic beliefs) and coherentism (which accepts mutual support alone). Haack's central analogy is the crossword puzzle: a justified belief must both match its experiential clue and intersect correctly with other beliefs. Neither grounding nor coherence is sufficient alone. The framework evaluates justification along three dimensions—supportiveness (how well evidence bears on the claim), independent security (how well-grounded the evidence itself is), and comprehensiveness (whether all relevant evidence has been considered). In the AI age, foundherentism becomes essential: large language models produceOutput that is perfectly coherent (acing the intersections) while lacking experiential grounding (having never checked the clues).
In The You On AI Field Guide
Haack built foundherentism in response to what she diagnosed as symmetric failures. Foundationalism, traceable to Descartes's search for certainty, demands beliefs rest on a foundation of self-evident, incorrigible starting points. The problem: no candidate for 'basic belief' withstands scrutiny. Sensory experience is theory-laden