system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: In the US, is there a way to break up the two party system?
gpt
The two-party system is an inevitable consequence of Plurality Voting, aka "one man one vote." Smaller parties always either die off or get absorbed into one of the two biggest ones. If we switched to, say, Approval Voting (you can "like" as many candidates as you want, most likes wins) or Instant Runoff Voting (rank the candidates in order, the guy closest to the top of most people's lists wins) or almost _anything_ else, then this "vote splitting" behavior goes away and you can have numerous parties again.

tl;dr: We need more mathematicians writing voting laws.