"God not only plays dice, He also sometimes throws the dice where they cannot be seen"

In this quote, Stephen Hawking is using a metaphor to describe the unpredictability and randomness of deep space. By stating that "God plays dice," he is referencing the popular quote by Albert Einstein, who believed that God does not play dice with the universe. However, Hawking adds his own twist by stating that not only does God play dice, however He also throws them in places that can not be seen. This recommends that there are aspects of deep space that are beyond our understanding and control, and that even a higher power like God may not have complete control over whatever. It highlights the mystery and complexity of the universe, and the restrictions of human knowledge.