If, for a long time, mimesis has been restricted to the logic of visual representation, aesthetic realism, and the metaphysics of sameness it presupposes, the ERC-funded project Homo Mimeticus overturns this perspective to foreground a re-turn to an immanent, affective, embodied, and relational conception of mimesis at play in different processes of becoming other. This introduction to The Mimetic Turn Conference (April 2022) presents some of the concepts driving this new theory of homo mimeticus.