If you speculate, "No, two plus two equal to five," or "Two plus two equal to three," that is not science. So scientific basis means it should be fact, not speculation. Mano-dharma, mano-dharma means speculation: Revision history
Diff selection: Mark the radio buttons of the revisions to compare and hit enter or the button at the bottom.
Legend: (cur) = difference with latest revision, (prev) = difference with preceding revision, m = minor edit.