Theodor Adorno was a Marxist philosopher who wrote about popular music in the mid-20th century. He believed that popular music was not "true art" like opera, and that it was created by music companies to manipulate and fool the lower classes into passively consuming meaningless music without questioning it, while giving them false hopes and replacing their real needs. Other theorists since have argued that Adorno's view was too pessimistic and dismissed the audiences' ability to actively engage with popular music.