> if you were deploying code to the mars rover, and your colleague asked to do a code review before you pushed go, would you be offended?

Having done so, from both the asking and being asked, yes I was offended. And glad I was asked after actually doing it. And learned to be insistent in asking. We all have hesitation but we should realize that “expertise” is a relative illusion and peer review is the only standard of progress we have ever demonstrated to be (eventually) fool proof. There are no people I trust in any field to be right for the sake of their name or accomplishments. Society needs that feeling to be stymied and eventually eliminated.