I am sure that God laughed at him for such a thought!
No GOD likely didn't but Satan sure is. GOD has given man every chance for salvation and believing. GOD has grieved for mankind. It is Satan who tries to trick us to believe a lie such as there is no Divine Creator GOD who is sovereign over all things. Hawking may possess a high degree of intelligence and knowledge but he lacks wisdom. In every sense of the word Solomon was far wiser and because of his wisdom much smarter than Hawking.