FROM TYPE THEORY TO MORPHOLOGIC COMPLEXITY A Colloquium in Honor of Giuseppe Longo Paris, 28-29 June 2007, in conjunction with Federated Conference on Rewriting, Deduction, and Programming (RDP 2007). This colloquium is organised to celebrate the 60th birthday of Giuseppe Longo. It includes the following speakers and talks (in alphabetical order). More details are available at the page http://www.pps.jussieu.fr/~gc/other/rdp/talks.html. To attend this event, please register following the instructions that will be made available at the RDP07 page http://www.rdp07.org/. INVITED SPEAKERS AND TALKS. Henk Barendregt and Jan Willem Klop.=20 Non-left linear reductions via infinitary lambda calculus. Kim Bruce.=20 Modularity and Scope in Object-Oriented Languages. Luca Cardelli.=20 Artificial Biochemistry. Pierre-Louis Curien.=20 Computational self-assembly. Mariangiola Dezani.=20 Session Types for Object-Oriented Languages. Abbas Edalat.=20 Recursively measurable sets and computable measurable sets. Jean-Yves Girard.=20 Truth, modality, intersubjectivity. Furio Honsell and Gordon Plotkin.=20 On the beta-eta-completeness and expressiveness of some classes=20 of combinatory algebras. Martin Hyland.=20 Modelling the Impossible. Eugenio Moggi.=20 Category Theory and Lambda Calculus. Mioara Mugur-Sch=E4chter.=20 On the patient quest of Giuseppe Longo for a general unity and coherence. Thierry Paul.=20 Semiclassical analysis and sensitivity to initial data. Jean Petitot.=20 Neurogeometry and the origin of space. John Stewart: Is "life" computable?