Quite naturally, most of the focus lately has been on Mrs May’s increasingly desperate attempts to reach a deal which steers between the Scylla of EU rejection and the Charybdis of ERG revolt. She may yet succeed. If she does, however, it is clear that it will be a narrow squeeze, built on navigation by fudge, postponement of key decisions and general statements of intent to patch the timbers of the ship where water is pouring in. It is possible to imagine a package that is generally seen as unsatisfactory but passes the Commons by a majority of, say, 15, leaving details to be resolved over an indeterminate transition period years into the future.