RS2 (Reciprocal System 2) is the re-evaluation of Dewey B. Larson's Reciprocal System of physical theory. Its mission is to provide a more accurate theoretical foundation, using concepts derived from projective geometry, counterspace, Theosophy and Anthroposophy to derive a fuller, more consistent model than what Larson originally proposed a half century ago. This site is kept separate from Larson's RS theory in order to keep students from getting confused by Larsonian and RS2 fundamentals.