Yep, and I would go further and say that interviewing is something which has NOT been (and may never be) objectively "figured out" even though industrial psycho

Yep, and I would go further and say that interviewing is something which has NOT been (and may never be) objectively "figured out" even though industrial psychologists have floundered for decades on how to best evaluate candidates. Interviewing is very much a people-skill.