I heard an interesting conversation on the overnight show "Coast to Coast AM with George Noory." The guest was a lecturer named Dr. Quantum otherwise known as physicist and lecturer Fred Wolf who discussed the concept of time and space and light.
During the conversation, he pointed out that the theory of the big bang occurred in the middle of nothing. Noory said it's hard for him to comprehend what "nothing" is. Up to that point I never gave it a second thought, but when Noory made the statement, it occurred to me how correct he was.