Having missed out on the Stirling Prize in 2005, and again in 2006, there will be some who feel Zaha has still to really prove herself, despite generally well-received buildings such as Cincinnati Arts Centre. This building probably won’t be the one to make a difference, but for us in the UK it is a valuable point in the nation’s architectural trajectory. The challenges to our thinking that Gehry and Hadid bring us are welcome, but we shouldn’t shirk from challenging them.