The reader has certain rights. He bought your story. Think of this as an implicit contract. He's entitled to be entertained, instructed, amused; maybe all three. If he quits in the middle, or puts the book down feeling his time has been wasted, you're in violation.

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

Never fire a laser at a mirror.

I do not believe they've run out of surprises.

I'd repair our education system or replace it with something that works.

I don't have a strong interest in history.

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