When I first heard about having to "register to vote" in the US it didn't make sense to me. Now I understand how it works. But it still doesn't make any sense. Thankful for this 2016 writeup featuring @whitneyq, which uses Sweden as an example.
businessinsider.com/voter-registra…
Another enlightening article, from 2008.
slate.com/news-and-polit…
"the United States ranks 139 out of 172 countries when it comes to turnout"