In Star Wars, midichilorians were the closest thing we had to power levels. Anakin, as a 9 year old, were over 20,000, more than master Yoda himself. The prequels were the first time we entered a measurable state of the force, now while midichlorians aren’t to be mistaken for one’s full on power levels, they are an abstraction of one’s potential should they train in the force. Now back in the 80’s when esb was being written, George Lucas actually had devised a power ranking system out of 10 for obi-wan, Luke, and the emperor.
