Well, I've been absolutely tantalised by the instalments on Twitter from David Melding's book on the future of the constitution, which I commend to all Members. On the question of keeping pace, we will keep under review whether that needs to be brought forward. Our assessment today is that isn't necessary, but we will be keeping that under review. Should that analysis change, then so might the recommendation. 

Just briefly, on the question of the Sewel convention, I think his point is that this requires reform, and there is a platform of discussions on which we now have to build for that to be reformed. As I mentioned in my statement, 'Reforming our Union' sets that out in detail. And, as a lawyer, I'm drawn to looking at the more precise formulations for that, but there is also a case for discussing whether or not we should move from simply 'not normally' to 'not'.