An engineer, a mechanic, and a statistician go on an African hunting safari. They spot a lion in the distance, and the engineer aims, and fires... but misses five feet to the left. The mechanic scoffs, takes aim, and fires... but misses five feet to the right. So the statistician jumps up and shouts "We got 'em!"
With moderation virtually impossible to find in any one member of congress, many Americans have resigned themselves to the hope that, while political power will swing like a pendulum between too-far-left and too-far-right, the results will average out to be somewhere in the middle. (Or worse, they've resigned themselves to the despair that politics has become hopelessly and irrevocably polarized.)
But what if there's a better way? Plurality voting (as well as instant runoff voting) suffers from a problem known as "center squeeze", where if three candidates are running for office, the one in the center is at a significant disadvantage. And so overtime, despite the honest intentions of every voter, the political center is emptied of elected representation. But if we use a voting method that does not suffer from "center squeeze", such as approval voting, then we would see the opposite effect: Over time, more members of congress would be found in the center.