Sometimes what is missing can be as telling as what is present. The availability of data drives what can be said, what can be understood and what can be proposed. So the absence of data can all too easily lead to an absence of attention – and of course, even where there is attention, to an absence of well informed debate and decision making. So there is something important and powerful about looking for the gaps and trying to fill them. This new blog is trying to do exactly that and will be well worth keeping an eye on.