Rocco Gangle, a philosopher focused on metaphysics and semiotics, discusses his book, exploring Peirce's concepts of firstness, secondness, and thirdness. He delves into the playful dynamics of category theory, emphasizing its ethical implications and connection to contemporary thought. Gangle also connects Peirce's semiotic theories to themes from 'Dune,' highlighting the intricate relationships between signs and reality. The conversation underscores the evolving notion of agency in technical objects and the role of diagrams in philosophy, reshaping how we understand knowledge and ethics.