Are they the same or different?
You walk into a crowded room, and your attention is drawn to one person in particular.
Is it the girl in the trendy outfit that looks like she walked off the latest fashion magazine cover?
Or is it the boy dressed unlike anyone else there – wearing punk at a gathering of preppies?
You may never think to consider, but why did you focus on that particular person?
It depends on how you match patterns – some people look for similarities, others for differences. Which are you?