There are four ways the UK can go from here with regard to Brexit, and all of them are bad.
First: hard Brexit, or no deal.
On 29th March 2019, the UK leaves the EU. If no deal has been agreed to, on 30th March 2019 the UK becomes a “third country”, in EU parlance – outside the EU, not part of the customs union, no access to EU agencies or EU funding, a hard land border between the Republic of Ireland and Northern Ireland – and between Spain and Gibraltar.
The inevitable and foreseeable consequences of this aren’t pretty. While Brexiteers have tried to argue with me that the countries of EU-27 won’t “let” this happen because hard Brexit will damage them too, they ignore two key points: