So you draw the line at &quot;desires to vote&quot; rather than &quot;is capable of answering a few trivia questions&quot;. But say passing the test was a requirement to vote, wouldn&#x27;t the people who want to vote naturally proceed with studying for and taking the test, while those who don&#x27;t want to won&#x27;t be bothered since overcoming the obstacle is even greater than overcoming the resistance of mailing in a form or going to an actual booth? (Or perhaps using an app?) Thus the test would serve as a proxy for desire, with even more potential upsides according to GP. What would the distribution look like given no filter, filtering by test passers, and filtering by people who want to vote?