Re: If Exams are unworkable online,
Finland doesn't have a lot of people. Plus they haven't had much issues with ballot-switching and ballot-stuffing. Try doing that with a nation of over 350 million who expect results by the morning news. At that scale, you're going to have to rely at least partially on machine-readable and serialized formats. It takes a certain intricacy of structure to keep things as honest as possible. Thankfully, this structure only needs to be effective for a short time so that cheats can't be effective anymore. If pollsters can't interpret critical parts of the ballot, they can't snitch (which is why I proposed a format that ONLY machines can interpret so that pollsters can't make the connections on site; a second group can check things form logs later but not know who was on site then).