Personally, I avoid deus ex machina like the plague - if you have to use one, it means you failed to set up the universe and the plot properly. It's like a whodunnit where there's no actual way for the reader to identify the perpetrator before the climactic reveal: there's no sense of closure for the reader.
Charles StrossMy gut feeling is that SF as we know it today is actually a heavily propagandized field that grew out of a specific set of cultural trends running in the USA and Europe between 1918 and 1950, during the post-imperial modernization period.
Charles StrossThe trouble is, if you go too far towards being polite, the label that applies is "doormat".
Charles Stross[Core concepts: Human beings all have souls. Souls are software objects. Software is not immortal.]
Charles StrossMy agent is based in New York. And due to a historic accident, my publishing track is primarily American - I'm sold into the UK almost as a foreign import! So I'm quite out of touch with what's going on in UK publishing.
Charles StrossThere's a long-standing (50 year old) flame war within the field over whether it's "sci-fi" or "SF".SF has traditionally been looked down on by the literary establishment because, to be honest, much early SF was execrably badly written - but these days the significance of the pigeon hole is fading; we have serious mainstream authors writing stuff that is I-can't-believe-it's-not-SF, and SF authors breaking into the mainstream. If you view them as tags that point to shelves in bricks-and-mortar bookshops, how long are these genre categories going to survive in the age of the internet?
Charles Stross