What is “science fantasy”?
Science fiction contains elements of science (i.e. the rational) whether from our current technologies or from technology only theorized. Fantasy contains elements not only inexplicable (i.e. by science) but whose explanation does not seem to be a problem to the world of the story.
The earliest version of this type of tale was “Magic Inc.” by Robert Heinlein, though that story was structured to be strictly science fiction. Many readers do not think it falls strictly within the boundaries of that genre but it certainly pushes the boundary layer a bit.
Magic and science.
The fantastic in the daily world.
It is like imagining six impossible things before breakfast, and then writing the story.
And, yes, it is supposed to warp your perception.