Michael Marder is Ikerbasque Research Professor in the Department of Philosophy at the University of the Basque Country, Vitoria-Gasteiz, Spain. His past books include Plant-Thinking: A Philosophy of Vegetal Life and Philosophy for Passengers (MIT Press).

Giovanbattista Tusa is a philosopher and video artist based at the Nova University of Lisbon in Portugal, where he coordinates the research program X-CENTRIC FUTURES. He is a coauthor, with Alain Badiou, of The End.