Change happens very slow and very sudden.

Metaphysics is a science.

Art imitates life, but science fiction informs us about what form it will take.

But I quite like the way you can talk about science without necessarily using mathematics, but using metaphors instead.

In hard-core science fiction in which characters are responding to a change in environment, caused by nature or the universe or technology, what readers want to see is how people cope, and so the character are present to cope, or fail to cope.

In the beginning there was nothing, which exploded.