Fair point. Do you think that's because of the observed correlation in the past, or some other reason? Biases are strong, and I'd admittedly not have a high first impression of the skills of someone who spent a lot of time on looks, male or female, just based on my own past experiences.

How do you know your current biases aren't informed by your past misjudgements?

Oh, I'm sure they have been, and I remember distinctly once. Lady on my new team(we were all new) had bleached blonde hair, heavy blue eye shadow, tanned, lipstick, in honest way overboard. My first impression was 'oh boy'. She ended up being a super smart lady from Russia and I thoroughly enjoyed working alongside her. So biases exist, but you(I) have to admit when wrong and adjust accordingly.