Introduction Ángel J. Gallego and Roger Martin; Part I. The Computational Component: 1. Deriving multiple 'object' constructions Tonia Bleam and Norbert Hornstein; 2. Verbal complex formation and overt subjects in infinitival complexes in Romance Francisco Ordóñez; 3. Two families of questions Howard Lasnik; 4. Context sensitive aspects of constituent negation Ricardo Etxepare and Myriam Uribe-Etxebarria; 5. Phasehood and Romance adverbial because-clauses Esther Torrego; 6. No-choice parameters, phi-features and the structure of DP Ian Roberts; Part II. Interfaces: 7. Linearizing chains at LF Jairo Nunes; 8. On the rationality of grammar Wolfram Hinzen; 9. The warped forge Pablo Bustos and Juan Romero; 10. Limiting semantic types Paul Pietroski; 11. Why is phonology different? No recursion William Idsardi; 12. Nothing in linguistics makes sense except in the light of change David Lightfoot; 13. Neurology and experience: the language organ and externalization Carlos P. Otero; Part III. Linguistics and Other Sciences: 14. My head's in knots: on Uriagereka's generalization and the knot-sentence connection Sergio Balari, Antonio Benítez-Burraco, Marta Camps, Víctor M. Longa and Guillermo Lorenzo; 15. (Neural) syntax Cedric Boeckx and Constantina Theofanopoulou; 16. Syntax and uncertainty Douglas Saddy; 17. The Golden phrase: steps to the physics of language Massimo Piattelli-Palmarini and David Medeiros; 18. Science, mind, and limits of understanding Noam Chomsky.