Sure, if you want, but I'm not too bothered.
Well, that's a pretty open and never ending question, both from a fiscal perspective and from a monetary perspective.
From a Fiscal perspective the government can only spend what it collects, or can borrow.
From a Monetary perspective, the banks can simply invent more £'s
But you seem to have your hands full with lots of other comments, and I don't have a lot of time available for an economics discussion.
So if you like we can maybe pick it up sometime later.