I think critical mass in our area is being met very well by a combination of things. The Perimeter Institute is one example. That's the theoretical side of the experiment that we're doing. Also, the CIFAR program in cosmology and gravity is doing similar things. The Canadian Institute for Advanced Research has a program that is bringing excellent Canadians together to work in this area. The advances that have been made in the area, together with the astronomy community, are tremendous. Canada really is regarded as a powerhouse in these areas.
I'll make one more comment on the science adviser. It's worth looking at what happened in the United States during George Bush Sr.'s administration, during which, as it happens, a Canadian, Allan Bromley, was a science adviser sitting in the White House, with a very powerful committee working with him that included people such as David Packard from the Hewlett-Packard foundation.