Would you let a stranger wake you up with a phone call?

A new app, Wakie, promises that the ‘mental engagement’ offered by a call from another, random, user is an effective wake-up strategy – but does it work? We tested it for a weekShould you talk to strangers? Technology has never offered clear guidance on this. Every incarnation of the communication revolution – from chat rooms to Chatroulette – has offered a new way of plonking users alongside other bored weirdos and seeing what happens. This is often sold with the promise of creating a