Hello and welcome to the intelligence on Economist Radio. I'm your host, Jason Palmer.

Every weekday, we provide a fresh perspective on the events shaping your world.

Like so many workers, diplomats had to make their way onto Zoom during the pandemic.

Sure, there are fewer posh dinners and side room chats, but diplomacy down the line has proven more efficient and more inclusive than many expected.

And from rain rooms to slides to Van Gogh projected onto every surface,

we take a look at the rapid growth in immersive art,

where the gallery goer is part and parcel of the installation.

But first... A hundred years ago today, the island of Ireland was partitioned.

The South, the Republic, became independent, and the North remained in union with Great Britain.

That union continues to be an uneasy one.

A gate in the peace line between Catholic and Protestant neighborhoods in Lanark Way, West Belfast last night.

Police were attacked, petrol bombs were thrown, and a bus was set on fire last night.

The region's fragile peace has been unsettled by anger over Brexit-related trade problems with the rest of the United Kingdom. Just last week, Arlene Foster resigned as Northern Ireland's leader.

A short time ago I called my party chairman to inform him that I intend to step down.

She'd fallen out of favour for many reasons,

most notably her democratic unionist party's handling of the Brexit deal,

which essentially created a border in the sea between Northern Ireland and Britain.

Now the DUP faces a leadership contest, and its unionist cause faces a reckoning. Arlene Foster has been

First Minister of Northern Ireland for five years, and her time has been so disastrous

from her party's perspective that Northern Ireland's place within the United Kingdom is now

more in peril than it has been at any point for decades. Sam McBride writes about Northern Ireland

for the economist. She has arguably done more to push Northern Ireland towards Irish reunification

...