Ineffable documents a timely and invaluable debate surrounding the use of computational tools in architecture and their effect on the nature of human expression. A distinguished group of architects, educators, and theoreticians discuss both the potential benefits as well as the perils asso- ciated with the recent turn to ever increasing computational complexity in contemporary design culture. Topics considered include: architecture in the post human era; the value and role of history within a computational paradigm; the relationship between humans and machines for the future of architecture; computers and design pedagogy; and digital-phenomenology in architecture. With essays from leading figures and 260 color photographs, illustrations, and drawings, Ineffable is for anyone interested in learning more about the political, social, and theoretical implications of the computer revolution in architecture.