Ok so Alex Salmond wants an independent Scotland, and sets out his ideas.
Then all three Westminster parties tell him - "no you can't share the pound and be independent as well, it would be too unstable. Did you see what happened in Europe when they tried to share a currency between different countries with different economic policies? And those countries were trying to become more united, and in this case the two countries would be trying to split apart!"
Then a guy from the European Union remarks that it won't be plain sailing for an Independent Scotland to join the EU, as all the other members will have to agree - and many won't as they don't want to encourage their own splinter states to start asking for independence as well.
So two fairly serious problems. And what is Alex Salmon's reaction? Basically to go "Ner ner ner, you're all being mean and nasty and you don't really mean it. I think that if we all vote yes for an independent Scotland, then you will change your mind and let us share the pound, and let us join the EU. You're bluffing, and so I'm not coming up with a plan for what would happen if Scotland voted yes and we realised that, oops no...you weren't bluffing".
How can anyone think this man does not sound a bit bonkers? I'm English, but if I was Scottish I would be very worried about voting for someone who thinks nothing of destabilising a whole economy just to make a Political point.