While acknowledging that "New Age" was a problematic term, the scholar of religion James R. Lewis stated that it remained a useful etic category for scholars to use because "There exists no comparable term which covers all aspects of the movement." Similarly, Chryssides argued that the fact that "New Age" is a "theoretical concept" does not "undermine its usefulness or employability"; he drew comparisons with "Hinduism", a similar "western etic piece of vocabulary" that scholars of religion used despite its problems.