That buys zero when talking to someone who was there. Not everybody is Buzz Aldrin, and he was there: talk to him. But, others were there, either making the gadgets and systems used in the moon landings, or doing weekend bar-be-ques with those very people. Deduce all you want. It is worth nothing.
If my memory is correct he is the one who went into a tirade when someone asked him if he really landed on the moon. I would say that he would not be a reliable witness. Throw that case out.