Scotland, Wales and Northern Ireland just signed a joint independence declaration in Cardiff. First time in UK history all three are led by pro-independence parties. I'm Welsh, so here's the sum nobody put in the letter. Yes, Wales, Scotland and Northern Ireland can be independent and successful. But with a London-scale Rentier Black Hole next door, I would not overestimate how much changes on day one of any planned independence. Independence doesn't stop gravity. It changes which well you're in