So in principle, in that election in 2000, there was at least four candidates, as it were, four things you could do with your vote.

原则上,在2000年那场大选中,应该有四个选举人,因为你可以投出四种选票

耶鲁公开课 - 博弈论课程节选

So, by the way, I don't mean this as a joke, in some sense there's always a third candidate and that comes from the problem we had earlier, because not voting is always an option.

顺便说一句,我不认为某种程度上说,是有三个选举人是一个笑话,这是由于一些由来已久的问题造成的,因为不投票也是一种选择

耶鲁公开课 - 博弈论课程节选