Curious conversations: in the aftermath of the tsunami of 2011, how did ghosts help the survivors? Songs, books, movies, plays, podcasts... why do we endlessly seek out new stories? This week we're curating articles that explore this cultural and social phenomenon to try and understand it. In Japan, ghost stories are not to be scoffed at, but provide deep insights into the fuzzy boundary between life and death. Christopher Harding, writing in Aeon magazine, explains.