I never got good at predicting what millions of people will suddenly decide is rational.

I'm not predicting; I just love playing with superconductors.

I've got five or six unpublished stories kicking around looking for somebody to buy them.

In general, I don't know when inspiration will pop up.

In hindsight it may even seem inevitable that a socialist society will starve when it runs out of capitalists.

SF isn't a genre; SF is the matrix in which genres are embedded, and because the SF field is never going in any one direction at any one time, there is hardly a way to cut it off.