A Fractal Physic Engine is like a shortcut with the ability to simulate almost unlimited objects, as a simple equation can be used to make the Mandelbrot Set an indefinitely zoomable object, an advantage since it could be possible to use it in simulations/games. The Fractal engine uses about the square root of the time to calculate object flow and predicted movement (There's a video by code parade that covers a lot more named A Fractal Physics Game).
How would this be useful
Procedural destruction, each part placed on the ship can be split fractal wise when hit/destroyed and make it seem like real-time destruction.
-Ships hitting each other or splitting would be less laggy.
-Large ships can be optimized with a chunk loading system as well.
-Parts that are destroyed do not explode with no trace left, they can be physical objects/floating shrapnel cable of being hit/moved and collected.
-And maybe the game can run better since you can simulate unlimited fractals (not just regular objects like a square) as they are a root transformation from one object.
-Now it would require a sort of complete rewrite of the game, and Walt should add this to the paid version.
-More of a simulate the simplified instead of simulate everything
Lots of promises were made and I do not expect all of these to be plausible, some may not work some may.