The title of this post is more or less a funny. It got the Kzinti smiling - but how about you? Yes, today we have a little transverse take on the axiom: "Fate follows fiction".
It occurred to me after GMing my Ringworld Reloaded scenario at Con of the North that if you're running hard SF, you'd better know something about physics. Fate game rules don't simulate it, but if the GM doesn't understand how physics works, it really can break player (and GM) immersion in a hard SF game. Having one or two players who know a little bit of physics can help.
Rachel Kronick's account of the scenario (linked above) briefly mentions the party's "long approach" to the Ringworld. That was because the players discovered an alien starship docked with the Ringworld, as well as a mystery satellite that was orbiting close to the Ringworld's sun, well inside the ring. They knew they weren't alone, and were curious and suspicious. (Really suspicious: they suspected the satellite was some kind of nova bomb.)
The players began a delicate game of cat-and-mouse with drones, attempting to scout out the alien ship and the satellite without being observed themselves. That slowed things down a bit.
But all the players were "in the zone", and immersed in what they were doing. They were having fun with the game.
Of course, I could have elided all of that if the players had just wanted to decide things through a few skill rolls and declarations. But the players seemed to enjoy working out the physics. They even discovered a decimal placement error in the otherwise superlative players data handout that came with Chaosium's original boxed set.
In this case, Fate followed physics. It was their choice.
People had fun.