The first writing I did was short short stories for a newspaper syndicate for which I was paid five dollars a piece on publication.
There is no way of writing stories that I haven't done.
Ninety percent of everything is crap.
Ask the next question.
Ninety percent of SF [science fiction] is crud, but then, ninety percent of everything is crud.
A good science fiction story is a story with a human problem, and a human solution, which would not have happened at all without its science content.