You can measure a person's ball knowledge based on their opinion of Bo Nix.
If they think he's not a franchise QB, they don't know ball
If they claim he's not that good, they don't know ball
If they think he's currently a top 5 QB in the league, they're a Broncos fan and perhaps too biased to truly know ball
If they recognize that Bo Nix is very good (top 15) AND incredibly clutch, they know ball