There were probably, what, 300 science-fiction members in the SFWA, of whom probably a hundred were active members in the sense that they were selling something every year, or every couple years.
You see, I used to do a certain amount of market research by going to the local drugstore and seeing what the truck drivers would put up. Now it's all just copies from the latest best-seller list and damn little of anything else.
Write a lot. And finish what you write. Don't join writer's clubs and go sit around having coffee reading pieces of your manuscript to people. Write it. Finish it. I set those rules up years ago, and nothing's changed.
We do a hard fantasy as well as hard science fiction, and I think I probably single-handedly recreated military science fiction. It was dead before I started working in it.
Somebody's always getting me to come lecture to their writing class, and I don't talk about writing at all, I talk about the business of making a living at this racket.
So, I guess the answer to your question is very few people can bring off a novel of the future because it's just so damn hard to make it look like the future.
I started in this racket in the early '70s, and when I was president of the Science Fiction Writers of America, of which I was like the sixth president, I was the first one nobody ever heard of.
And that's another piece of advice I'll give junior writers; when you get to the point where they take you to lunch, let the editor suggest where to go.
And meanwhile, the storytellers like me and Anderson, Silverberg... we tell stories. People like them. They want to know how it comes out, they want to know what the ending is.
One the other hand, the publishing trend is ghastly, isn't it? Two hundred and something distributors are now down to 10 or 12? And what's the recruiting drive?
Heinlein never had a best-seller. Even, I think, with Stranger in a Strange Land, I don't think it was actually on the New York Times best seller list.
And in down times it shakes a lot of the bad SF out, a lot the stuff that was bought for literary reasons, which is neither entertaining nor great literature.
We're basically after Joe's beer money, and Joe likes his beer, so you better make sure that what you give him is at least as pleasurable to him as having his six-pack of beer would be.
The hard part of writing at all is sitting your ass down in a chair and writing it. There's always something better to do, like I've got an interview, sharpening the pencils, trimming the roses. There's always something better to do. Going to a writer's club?