We are all still in the land of No Idea where Brexit is concverned, because no-one has a script, and no-one has a crystal ball.
This allows endless speculation, and the media love a buzz phrase, so you get the potentially infinite variables involved in the exit being corralled into a couple of snappy expressions which mean absolutely nothing without the context and detail which are simply not available yet.
I have maintained since the referendum was mooted, and all the way through the debate, the result, and to here - it all boils down to the way trade has worked for millennia.
Do you have something to sell that I want to buy? Can we agree a price? then have a deal.
Now you can complicate that from here to wazzoo - and they have - but the concept is unchanged because that is what trade is, it has never changed, and it never will.
If you have a product, and a demand, a deal can and will be done.