The devolution dynamic

Catalonia has voted 'yes' for more devolution, prompting fears that it might lead to the break-up of Spain.

We have our own dynamic here of course - north and south of the border.

Both have to do with the instability of the devolution settlement. Bit rushed here - I intend to do this in more detail later but just a quick thought: given that Spain was one of the models that the Constitutional Convention looked to, is the de facto break-up of the Union inevitable?

And if so, do we have to give Tam Dalyell prophet status? Depressing thought.