How it Would Work
To launch a Prediction Market, you could require users to burn a small amount of LEO or send a small amount of LEO to Leo Pool. This can prevent spam creation of random prediction markets.
To make the decisions of outcomes decentralized, we can use Poll voting for the outcomes. Could do the poll in various ways:
Community Leaders are elected and it takes 3/5+ of them to vote to close a prediction market (results of a market are then closed by majority vote)
No leaders are elected and instead, a community-majority vote is required over a 24 hour period (same way normal Polls work right now)