I agree. I think, at least for me, it's because I know my colleagues know my overall capability, so admitting I don't know a specific thing isn't a big deal because I've already proven I'm capable of overcoming any specific gap. But to strangers, perhaps that may be all they know of me -- that I don't know this one thing. There's no preexisting relationship or past body of work (in other words: no trust) to balance that gap out or put it in perspective.

I think this is objectively mostly a silly and counter-productive worry. But I still feel it.

Kudos on publishing this piece!