Actually most of them, including the really inexperienced juniors have 'figured' you out in less that 15 minutes, or at least they have decided whether to hire you or not in 15 minutes. But they have to put on a charade of being fair.
Also a 'white' older male is the least preferred even if he is smarter compared to all females and the minorities that are being interviewed as long as they are not terrible. Biases galore.