Pretty much everyone thinks the most likely scenario now is that Britain leaves on October 31 without anything resembling Mrs May’s 599-page Withdrawal Agreement.
But rather than this being the giant cliff-edge cataclysm that Treasury forecasters like to imagine, it would be a no-deal Brexit with lots of small parachutes.
And there can be larger ones: Britain might promise not to sign any trade deals for a couple of years, for example, and stick to EU regulations. This should help keep trade as it is, at least for now.