This market is an experiment to see if it's possible to make markets that resolve based on the closing percentage but are hard for whales to manipulate.
If no one bets 1000 or more mana on it, it resolves YES if it closes at or above 50%, and NO otherwise.
If anyone bets 1000 or more mana on it, it resolves NO if it closes at or above 50%, and YES otherwise.
Normally, traders are incentivized to bet the market towards an extreme. However, if anyone spends 1000 or more mana to try to push the market towards a certain outcome, other traders are incentivized to bet it to 50%, which should cause the whale to lose their mana.
Let's see if my idea actually works or not. I can think of a few ways it might fail, but that's up to you to figure out. If it fails, I might try again with a different set of resolution criteria.
Since the resolution criteria are clear, I may bet on this market.