Causal decision theory says that if an election over a million people is decided by two votes, then no individual vote had any effect \(unless that decision to vote directly caused at least one other people to vote\); if the election is decided by one vote, then every one of the winning voters should regard themselves as being responsible for the outcome\. Suppose we value the result of the election at a billion dollars\. According to CDT, if the election is settled by two votes, all voters should regard themselves as having gained zero utility by voting\. If the election is settled by one vote, then half a million people should all regard themselves as having each individually generated a billion dollars of utility\.
person