I've never used polymarket, I just wanted to mention prediction markets as an option in general. The particular bet I linked to is probably a bad idea though,

I've never used polymarket, I just wanted to mention prediction markets as an option in general. The particular bet I linked to is probably a bad idea though, because there is a causal link between OpenAI doing well and deciding to go public. So this is not the way to bet on it crashing and burning.