Boris Johnson has poked fun at the Brexit impasse by asking if an atomic microscope could be used to split the deadlock on future cross-border trade.

Patrick and John Collison, the billionaire brothers from Limerick behind mobile payments firm Stripe, were still in their teens when they sold their auction website Auctomatic for €4.5m in 2008.

Younger people are more influenced by social media, their parents should be aware.