A 72% score on this scale is equivalent to confidently knowing 44% of the answers, and coin-flipping the rest. It's doing something that untrained humans are n

A 72% score on this scale is equivalent to confidently knowing 44% of the answers, and coin-flipping the rest. It's doing something that untrained humans are not capable of [edited to add: although humans were apparently tested by a different method, so this is not properly comparable], but is still a failing grade by usual methods of assessing human knowledge.