There is also the question of an exit strategy: what will replace hotel quarantine? How long will it be in place for? Home Office would like to use GPS tracking for arrivals through an app or physical device for self-isolation at hone, but the tech isn’t ready.

If hotel quarantine isn’t lifted by the summer, you can bid farewell to a vast sum of tourism revenue. The cost for the aviation and hotel industry would be huge, even if Brits holiday at home, likely requiring another Treasury bailout to avoid total collapse.

Hotel quarantine may be a necessary policy as the UK continues pushes ahead of other countries in vaccinating its population - and the threat of new strain spreading become greater when lockdown is eased. Israel has gone one step further and banned all international flights.

It’s a quid pro quo that may prove popular with Brits: clamp down on borders and travel to open up society more quickly at home. But hotel quarantine is complicated, costly and has to be v carefully thought through. Hence why ministers are taking an extra 24 hours to decide.

Closing up the borders is also more Fortress Britain than Global Britain - not exactly the image Boris Johnson wants to project.

And how would hotel quarantine work the G7? Thousands of diplomats and politicians descending on Cornwall in June with Brits unable to travel.