In what ways were the anxieties of the postwar world expressed or heightened by revolutionary ideas in modern thought, art, and science and in new forms of communication?

Many people hoped that happier times would return after the war, along with the familiar prewar ideals of peace, prosperity, and progress. These hopes were in vain. The First World War and the Russian Revolution had mangled too many things beyond repair. Great numbers of men and women felt themselves increasingly adrift in an age of anxiety and continual crisis.