"The transrealist writes about immediate perceptions in a fantastic way. Any literature which is not about actual reality is weak and enervated. But the genre of straight realism is burnt out. The tools of SF offer a means to thicken and intensify realistic fiction, introducing power chords that are symbolic of archetypal modes of perception. Thus, time travel is memory, flight is enlightenment, and telepathy stands for the ability to communicate fully..."
Well, that's Rudy Rucker enunciating my thought on the current state of SF (in 1983!). Rucker's bringing back some classic novels via Kickstarter - get in on it!