1988, Antonella Della Fave, Fausto Massimini, 12: Modernization and the changing contexts in work and leisure, Mihaly Csikszentmihalyi, Isabella Selega Csikszentmihalyi (editors), Optimal Experience: Psychological Studies of Flow in Consciousness, Cambridge University Press, 1992, Paperback, page 208, It is possible that these three people have jobs that are more autotelic than those of the rest of this group; that they have more responsibility, more initiative and challenge at their workplace than is usual for employees of their type.
Source: wiktionary