And people don’t realise they’re giving it away. If a stranger came up to you on the street and wanted to know where you were going next, or what kind of films you like, if you’re married or single, where you went to school, or where you work, you’d be a bit freaked out… The same if they wanted to have your phone for a few minutes to scroll through the photos. But the same people blithely stick it all online for everyone to see.’
