“In a fantasy story,” Aldiss says, “there’s a big evil abroad, but, in the end, everything goes back to normal and everybody goes home to drink ale in the shires. In a science-fiction story, there may be a terrible evil abroad, and it may get sorted out, but the world is f***ed up for ever. This is realism. It’s certainly not beach reading, unless you can find a really nasty, shingly beach.”

[Via]