Just curious but how are bets arbritated on these website?

Meaning who decides if an outcome was yes or no? Answers to things like "Who will win the next Best Picture Oscar?" are fairly obvious and binary.

Can we make bets whose answers are not binary yes/no?

What about "Will celebraty X and Y break up?"? Does Polymarket go to X and Y to confirm if they broke up or something :D

https://docs.polymarket.com/concepts/resolution