compatibilitymethod
How we score dual compatibility
How AstroDual weights Western, Chinese, and numerology scores, dimension bars, pair modules, and relationship modes.
Combined harmony weights Western sun chemistry (~45%), Chinese animal + element (~35%), and Life Path (~20%).
Dimension scores (spark, communication, pace, values, stability, growth) remix those lanes for storytelling — they are not separate scientific instruments.
Pair modules add prose for sun×sun, animal×animal, element×element, Life Path×Life Path, and Day Master×Day Master.
Romantic, friendship, and family modes adjust narrative and small score nudges. Both people need only a birth date — no place or time required.