It would require a lot of agreed-upon things to continue as agreed rather than end upon the overarching agreement (i.e. membership of the Union) coming to an en

It would require a lot of agreed-upon things to continue as agreed rather than end upon the overarching agreement (i.e. membership of the Union) coming to an end. This is largely what Brexit-positive people seem to think would happen in the case of a no-deal, i.e. "nothing much would change" because to rock the boat would be too much.