JMich: Science Fiction (aka SF) ignores the possibility (or existence) of magic, while Science Fantasy is indifferent. So no, I don't see any problems in having Magic Missile co-exist with robotic companions.
You're right. I misread that in the description of Numenera. Thanks for bringing it to my attention. Still,
the overview of the setting does give the impression that it's leaning more towards science fiction. Things are bio-engineered, designed, there are devices, "magic" is put in quotes. Reading further, there's a
blog post by Monte Cook on the subject, linked from the settings page.
He says: "My favorite slice of science fantasy, I think, is science fiction as fantasy. This is where the technology is so advanced, at least in some aspects, that it seems like magic." and "Perhaps it comes down to that idea that having limitations actually encourages rather than discourages creativity."
And this is exactly what I was saying. Science fiction
is limiting. Seems like Monte Cook and I see eye to eye. To quote my previous post: "On one hand this can make SF worlds a lot better fleshed out, but on the other hand, it can limit them in what can be put into the story."
Which was my point to begin with. Monte Cook clearly agrees that science fiction (even "as fantasy") is more limited than fantasy. Personally I love rationalising, even in fantasy, but I think that good fantasy can more easily take me out of my comfort zone in a good way.