Rule: SF stories have room for those who don't know the science and intricacies of everything going on around them.
I am mindful of Wells' hero in The War Of The Worlds, who knew nothing of celestial mechanics, physics, alien physiology, etc, but still provided the reader with enough information about the Martian attack and his efforts to escape it to create a thrilling story. (This is one of the reasons I liked the recent WotW movie: The Tom Cruise character was closer to the hero of the book, an ordinary guy just naturally trying to get the hell out of the way.)
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