What united the authors ernest hemingway and scott fitzgerald in the 1920s?

Both Hemingway and Fitzgerald were renowned writers from the Lost Generation. They both came of age during World War I and thus their writings too were inspired by their experiences during the war and after. Through their respective novels 'The Sun Also Rises' and 'The Great Gatsby', both touch on the materialistic lifestyle of the rich people of that generation and speak out on behalf of those who were concerned about the disillusionment and shift in the values of the western civilization.

Louis xvi wanted to force aristocrats to pay taxes for the first time