Do you hear the same things as me? Probably not. As these weird audio illusions show, people have radically different opinions about what reaches their ears, says David Robson.

“You know you were told to be nice and not to heckle?” Sophie Meekings asks her audience in the dingy cellar of the North London pub. “Well, you can heckle me if you want – it’s just there’s not much point, because I won’t be able to hear you.”

BBC