Those who have held that secession is legitimate do so in a highly qualified way when, basically, there's extensive repression over a long period, and that's been reacted to by a population that expresses an overwhelming and freely expressed will that is very, very obvious to discern. I don't think those characteristics are present in Catalonia, but that's for those people to determine.

The whole question does refer to: should you invest in improving, through democratic procedures, your own state or the state you find yourself in and look for more autonomous expression, or should you drive for your own state? If that happens, we will live in a world that contains many microstates, and many states that, perhaps, are not as coherent as they first appear, and then face all sorts of pressures, because, when a nation becomes a state, all sorts of forces then apply that do not apply when you're a nation within a larger body or multinational state. So, I do think that we need to be very, very careful, and those that believe that secession is legitimate need to reflect on when it is, and to read the literature on this that, recently, has been quite extensive, because, at the moment, I think some people do not realise what they wish for.