I see a lot of posts here saying things like "I met a blonde who was a solid 9 at the bar", and statements like these confuse me straight away since there isn't really a set criteria for what makes somebody a "10" or a "7" etc. Wouldn't this make it impossible to quantify SMV? I understand that having a healthy weight and good facial symmetry etc. would be considered attractive, but what about the rest? - some people may find blonde hair off-putting, for example.

Is beauty not in the eye of the beholder?