We had the Annual Architecture Lecture last night, given this year by Yvonne Farrell and Shelley McNamara of Grafton Architects who did one of the installations for Sensing Spaces and are curators of the current Architecture biennale in Venice.   They gave a tour d’horizon of their choice of work for the biennale – very global, very publicly oriented, based on the ideas of imagination and generosity – ‘generosity of spirit and a sense of humanity’ or Freespace as their overall theme is called.   Almost no architects from the United States, apart from Michael Maltzan’s Star Apartments in Los Angeles:  the drive is towards the creation of non-commercial public spaces, a mood which passes most of North America by.