As I said, we base the guidance we make public on the accumulation of the evidence available to us and the expertise we can bring to bear, both internally at AECL and externally. And the guidance we have provided successively over the past few months of this project has always reflected that very real uncertainty that exists at an early stage of a very technically demanding and complex project.
The most recent release we made does in fact reflect a very different tone in our projection, because we didn't just say that it's going to be at least this or that amount of time or by this date, but we put a bracket around it and said it's going to be within that three-month period of the first quarter of next year. That really reflects the business judgment that both Bill and I bring to the task, and also the support and advice of both internal and external experts who have been retained.
So there is always uncertainty, there is always risk; but to date, we feel comfortable making the commitment publicly that AECL is planning to return this reactor to service in the first quarter.