You need to know these things for yourself. That is the only way.

As an example, physics is mine. I built a careful pyramid in my head. It is mine becaus I know it from the Principle of Least Action to Chan-Patton, though it is of little use in this world. Not because others showed parts to me. I still hadve to fit them together, sometimes clumsily.

As an example, if u cannot internalize what Hawking says then u should note it and move on, but not attempt to brute force incorporate into ones castle, or judgement. Otherwise he becomes shaman or a fool; of which he is neither. He, like anyone, can speak their mind though (a book might be preferable) but people listen. but do they hear?