Midichlorians
Some people get completely bent out of shape over midichlorians in the Star Wars prequels, and I just don't get it. Â They're not a big deal.
"Oh no! Â What was a mysterious Force is now explained to be microorganisms!" goes the main whine. Â No it isn't. Â The Force is still the Force; the midichlorians are just a go-between. Â As long as there's supposed to be some genetic component to Force capability (as the Skywalker family would indicate), is it unreasonable that there is some non-mystical method to measure this? Â We know the Jedi look for Force-sensitive youngsters; either they were going to need to develop a test or have a large portion of the Order be permanently assigned to go around administering compulsory "feelings" of babies.
Look, people in the real world can be strong. Â Some people might even have a higher potential limit on their strength based on familial factors. Â But if I come in and mention muscle fibers, who is going to be the one to flip out and say "FIBERS! Â This guy was especially strong, but now I'm just supposed to believe he's got cords doing all the work!?" Â Come on, that's batshit.
The Force is the Force. Â Skywalkers are still special. Â To say midichlorians explain away the Force is to say that tongues explain away singing or fingers explain away writing.