Fuzzy Demarcationism

A demarcation approach that replaces binary classification (science/pseudoscience) with degrees of membership on a fuzzy set. Instead of asking “Is X science?” it asks “To what degree is X science?” This allows for borderline cases, hybrid fields, and evolving practices. Fuzzy demarcationism draws on fuzzy logic and the insight that many scientific disciplines (e.g., psychology, geology) exhibit both rigorous and questionable practices. It is useful for avoiding the absolutism of strict falsificationism while still maintaining standards. It shifts focus from labeling to evaluating specific practices.

Example: “Fuzzy demarcationism rates astrology as 0.2 science (it uses some empirical observation) and 0.8 pseudoscience (lack of mechanisms, failed predictions). This nuanced grade is more informative than a binary ‘science or not’.”

Fuzzy Demarcationism by Abzugal Nammugal Enkigal June 1, 2026