To me they mean the same thing. If there's a difference, I've somehow missed out on learning what it is after >20 years in industry/academia and that lack of k

To me they mean the same thing. If there's a difference, I've somehow missed out on learning what it is after >20 years in industry/academia and that lack of knowledge has never been a problem. I honestly don't care about titles. I don't even know what mine is without looking it up.