Devolution has failed in Scotland. Nothing that follows will be of use to you if you remain in denial of this fact.

Facing up to a quarter-century of needless, self-inflicted constitutional harm is the admission price to any credible conversation about how to go about fixing the problem. Devolution, sold with the assurance that ‘the Union will be strengthened and the threat of separatism removed’, has weakened the Union and armed the separatists.