Another rock upon which the good ship HMS Brexit will crash

UK is leaving the EU be simple operation of international law and the calendar on 29th March 2019.

Read or not. And that counts for both sides.

UK must get its laws in order otherwise there will be chaos. Regulation and arbitration methods must be updated.

UK and the EU must reach a deal on the exit.

And this must be ratified.

By the EU27

By the European Parliament.

By Westminster.

A "transition" deal, even if it is a standstill, the above is also applicable.

And a selection of regional Parliaments and Assemblies will also have to ratify it.

Any FTA deal that might apply to the UK would also have to apply to Canada and Norway. Or they will complain to the WTO.

Yes, and in order for all the above to happen, rights of EU and UK citizens living in the UK and EU will have to be settled, and after the Windrush debacle, the EU will accept nothing less than laws protecting their citizens as, simply, they don't trust the UK.

And the NI/Irish Border needs to be settled to the satisfaction of Ireland and the EU. As well as all parties in NI.

And there is one other land border between the UK and EU. Gibraltar

Gibraltar voted 98% to remain, as EU membership means Spain has to guarantee its borders, and allow free movement. Those of us old enough, will remember blockades and day long delays for people and good before 1992. That is a thing of the past, but it could be a thing of the future if Spain puts a precondition for ratification of talks on the future of Gibraltar. Of course, the Brexiteers didn't bother themselves with details, like how it would affect people and reality, it all sounded perfect in the abstract, they just leave it to others to make work in the real world. Then scream like babies when their unicorn can't be made real.

I'm sure it'll all be OK in the end, I mean, most of the details will have to be settled by the end of June, and that leaves, what six or seven weeks. Plenty of time.