Skynet may be fiction, but men flying through the air, rocket ships to the moon, and cell phones used to be fiction too.
Sophisticated artificial intelligence is on its way. Just because it hasn't been achieved yet doesn't mean it isn't coming. Moore's Law and related developments mean that our computing/ AI capabilities are increasing not just by addition, but exponentially.
Not that we can see it now, so clearly. But sooner or later the visible effects of the exponential curve are goign to kick in.