I don't ever want to hear another engineer say I am not creative after attending a presentation on innovation and creativity by Tristan Carfrae, Senior Fellow at Arup, the designers and structural engineers in the consortium who constructed the Water Cube for the Olympic Aquatic Centre at the Beijing Olympics. What was particularly interesting about Carfrae's presentation was his proposition innovation in the building industry is very difficult and when you look at the simple physics of his proposition, he has a point. Every building is a prototype that mustn't fail. In structural engineering, you just cannot fail or the building will fall down. Engineering is calculable but it is not the calculations which fail. It is what the engineer chooses to calculate that will bring about the failure and in this sense, engineers' thinking can be compared to the way artists work.