Meanwhile, a British company called Myndplay is creating short interactive films in which viewers step into the shoes of the protagonists and influence the plot by focusing or relaxing.

ECONOMIST: Brainwave controllers

The 40-plus people on the unauthorised plot at Waltham St Lawrence have until Tuesday to leave before enforcement officers and police step in.

BBC: Waltham St Lawrence Gypsy eviction to cost ?300,000

The 40-plus people on the unauthorised plot at Waltham St Lawrence have until 18 March to leave before enforcement officers and police step in.

BBC: Berkshire