This book shows the importance of the possibility approach for contemporary debates about metaphysics, the idea of God, the problem of evil, the role of reason and the understanding of humanity in the light of contemporary transhumanist challenges. It discusses the turn to possibility not only as a historical phenomenon, but as a systematic starting point for a contemporary philosophical theology that points beyond the barren alternatives between classical or neoclassical metaphysics as well as modern and postmodern antimetaphysics. It thus offers a new starting point for critical engagement with the philosophical and theological challengers and shortcomings of our contemporary culture.