Unless I'm missing something, how is 'Impact' derived here? Impact as a metric is fine, but you have to show what it is and how you arrived at that conclusion,

Unless I'm missing something, how is 'Impact' derived here? Impact as a metric is fine, but you have to show what it is and how you arrived at that conclusion, and have verified that against a test set of data otherwise it's turtles all the way down. https://en.m.wikipedia.org/wiki/Turtles_all_the_way_down https://en.m.wikipedia.org/wiki/Turtles_all_the_way_down