Once more this weekend I joined up with my fellow cruciblists in Edinburgh. Another packed weekend was started with a speed collaboration - just like speed dating but trying to marry ideas rather than hearts. It was a great way to re-acquaint ourselves again but also to spark off potential ideas, all in 2 minutes. After wonderful food we adjourned to the campus bar and chatted until we were ousted at closing time. Then for a strange few moments we compared bathrooms - Robin had a magnificent bath in a bay window, whereas I had a shower head that could accommodate thousands and Jim had what we thought of as a fairly normal bathroom but with a view into someone elses! (Not that he was looking). The following day Steve, our facilitator, took us through Global challenges and Utopian universities allowing us to build models and generally make stuff with playdoh, pipe cleaners and willow withies - I was in my element. In the evening we went for a trip down Mary King's Close - under the streets of Edinburgh lies an old city, no longer lived in but full of ghosts. The final day came round quickly and we talked of art and writing in science before heading once more to our disparate parts of Europe.