In the 17th century, John Locke argued that the only proper objects of scientific study were the primary qualities of matter – crisp measurements such as size and location. He and other thinkers thought that qualities such as color or temperature were too subjective for science. After all, I might think an apple was red, while you could call it orange or pink…but we’d have to agree on the measurement of its diameter! Hard measurements thus came to dominate scientific discourse, while subjective experiences were dismissed as irrelevant. But now, a group of Canadian researchers thinks that meditation might change this equation.