What would you call this kind of science fiction? (long-winded)

Obsolescience Fiction?
Ex-Science Fiction! Because it’s Ex-Sciting!

I’m with Czarcasm. Skiffy, the most diminutive form of Science Fiction. Not even rating Sci-Fi, or the acronym SF. Nope, just Skiffy.

This one! Maybe shorten it to X-Sci-Fi?