While putting together a post on the situation in Catalunya, I saw one graph which was particularly striking. Click the image for a larger version.
It shows the levels of support for four different constitutional arrangements for Catalunya: no autonomy, the status quo as an autonomous community, being part of a federal Spain, and independence ... plus the don't knows and won't says at the bottom.
In November 2005, support for independence as shown by the green line stood at 12.9%. Now, less than seven years later, it has become the most popular of the four options with support for it standing at 34.0%.
Here in Wales, support for independence stood at 11% in both 2010 and 2011. Not so very different from the degree of support for Catalan independence in 2005, and at the sort of level where those of us who want an independent Wales would be told in no uncertain terms that we'd never live to see it happen.
If support for independence can grow so rapidly from such a low base in Catalunya, it could grow as rapidly in Wales.