In a world where entire cities can be emptied out in furled bombings, and reality TV stars can become the nuclear-bomb-wielding leaders of the free world, some folks might be a little perplexed about the outpouring of grief over the death of an actor whose heyday was 30 years ago. But for a generation of movie-goers, Carrie Fisher meant more than just a tacky gold “slave” costume and weird hair-dos.