Mediatization, polarization, and intolerance (between environments, media, and circulation)

Hypotheses about polarization, mediatization, and algorithms 323 cia Universidad Católica de Santiago, he holds a master’s degree in Communication Sciences from Universidade de São Paulo (1987), and a doctorate degree in Communication Sciences from Universidade de São Paulo (1991). He is currently a full profes- sor at Universidade do Vale do Rio dos Sinos – UNISINOS. He has experience in the area of Communication, with an emphasis on Journalism and Publishing, working mainly on the following themes: communication; Christian communication; communi- cation, culture, and media. He is a member and president of the Superior Council of Fundação de Amparo Pesquisa do Estado do Rio Grande do Sul – FAPERGS. He holds the position of Vice- Rector at UNISINOS and is the Director of the Publisher at the same university. ORCID: https://orcid.org/0000-0001-8287- 4307. E-mail: pgomes@unisinos.br. André Lemos Full Professor at the Department of Communication and the Graduate Program in Contemporary Communication and Cul- ture of Faculdade de Comunicação at Universidade Federal da Bahia - UFBA. He is a mechanical engineer who graduated from UFBA (1984), holds a masters’ degree in Science and Technol- ogy Policy from COPPE/UFRJ (1991), and a Ph.D. in Sociolo- gy from Université René Descartes, Paris V, Sorbonne (1995, CNPQ scholarship). He was a Visiting Scholar at McGill and Al- berta Universities, both in Canada (2007-2008 post-doctoral fellowship by CNPq) and at the Programmable City Lab at the National University of Ireland, Maynooth (Senior Internship Scholarship, CAPES, 2015-2016). Founding member of the Bra- zilian Association of Researchers in Cyberculture (ABCIBER). Director of Lab404 - Laboratory for Research in Digital Media, Networks, and Space ( http://lab404.ufba.br ). He is currently a “1 A” researcher at CNPq, Member of the Managing Committee of Instituto Nacional de Ciência e Tecnologia em Democracia Digital (INCT-DD), Alternate Member of CGI (Brazil), Member of the Academic Council of the Julian Assange Chair in Tech- nopolitics and Digital Culture (CIESPAL-Ecuador), Substitute Adviser to Conselho de Ciência e Tecnologia do Estado da Ba- hia (CONCITEC), Member of the External Advisory Committee of DigiMedia (Digital Media and Interaction Research Centre),