[2003.03667] The growing echo chamber of social media: Measuring temporal and social contagion dynamics for over 150 languages on Twitter for 2009--2020https://arxiv.org/abs/2003.03667TagslanguagessocialcontagiontwitterdynamicsDetailsRevised2020-06-27 12:38:15ZCreated2020-03-15 12:28:37ZEdited2020-06-27 12:38:15Z