Sergiu Hart raises a very interesting idea regarding elections. Consider the Brexit referendum. Sergiu proposes to have two rounds two weeks apart. Every voter can vote in each, and the votes of both rounds add up! The outcomes of the first round are made public well before the second round.
In the paper Repeat Voting: Two-Vote May Lead More People To Vote Segiu Hart suggests the following method:
A. Voting is carried out in two rounds.
B. Every eligible voter is entitled (and encouraged) to vote in each one of the two rounds.
C. All the votes of the two rounds are added up, and the final election result is obtained by applying the current election rules to these two-round totals.
D. The results of the first round are officially counted and published; the second round takes place, say, two weeks after the first round, but no less than one week after the official publication of the first round’s results
(The pun in the title is taken from an early version by Sergiu.)