We are in a tech-heavy society, plunging headlong into an unknown future. Science fiction is what allows you to stand back and analyze the impact of that and put it in context of how it affects people.
To me, science fiction is about the sense of mystery, the sense of awe. Not 'shock and awe', just 'awe.'
In every other science fiction series, humans are at the top of the food chain. In the 'Babylon 5' universe, they're in the bottom third.
I've always been a science fiction fan since I had understood the conception of what a story was.
Science fiction shows are traditionally about the gimmick or the gadget and tend to be emotionally cool to the touch.