If you heard yesterday's show, you heard our guest in the second half of the episode,

Professor Rashid Halidhi say something you may or may not have understood.

I don't think anybody would have predicted the Good Friday agreement in Northern Ireland.

I don't think anybody predicted the Brexit might come close to breaking the Good Friday agreement either.

Now, we knew there was a chance you might have missed what Rashid meant by that,

but we were also pretty sure we'd be explaining it today, so we let it slide.

We have made a good many episodes about Brexit on today's explained.

One's about the economy, one's about the arguments for and against.

One was actually about Brexit, and one was about how the move could affect the fragile piece

that the Good Friday agreement brought to Northern Ireland.

But now Brexit is really happening.

And President Biden just visited the UK and did some photo ops with Prime Minister Boris Johnson,

so it felt like a good time to check in and see how everything's going out there.

Hi, it's Tom McTayck here.

I'm a staff writer at the Atlantic.

I'm sitting off the coast of Cornwall in a place called the Celi Isles,

and I am about 10 feet from my baby who's just waking up as we speak.

Tom, we're back again today to talk about Brexit, because Brexit is of course still happening.

Why does a Brexit take so long?

Well, because Brexit is not an event, it is a process.

It's a process of disentangling a country from an organisation it has belonged to for 40 years.

And that's 40 years of law and court decisions and, you know, jurisprudence and all of these things.

...