Editorial.- Part I philosophy of computing.- Chapter 1 Çem Bozsahin. What's a computational constraint?.- Chapter 2 Joe Dewhurst. Computing Mechanisms and Autopoietic Systems.- Chapter 3 Vincenzo Fano, Pierluigi Graziani, Roberto Macrelli and Gino Tarozzi. Are Gandy Machines really local?.- Chapter 4 Doukas Kapantais. A refutation of the Church-Turing thesis according to some interpretation of what the thesis says.- Chapter 5 Paul Schweizer. In What Sense Does the Brain Compute?.- Part II philosophy... Mehr