Is technology liberating us or enslaving us? Hardly a new question, says Dominique Pestre... He will thus challenge us to raise our level of thinking and, in searching for an answer, to embrace dissensus and complexity: How can we welcome techno-skeptics in order to produce more sustainable technologies? Can we really believe that green techs will allow us to avoid drastic (and collective) choices on how we live? How can the interaction between markets, democracy, usage, science, code, become more productive?