Write Market Resolution Questions That Hold Up
Most prediction market disputes trace back to a sloppy question. Here is how to write a market resolution question that resolves cleanly and cannot be argued.
Nearly every ugly prediction market dispute traces back to the same root cause: a badly written question. Not a bad outcome, not a corrupt resolver, a bad question. If your market asks "will the project launch soon" without defining launch, without a date, and without a source, you have not built a market. You have built an argument waiting to happen. A resolution question that holds up names one measurable event, one deadline, and one source of truth, and it does so before a single trade is placed. Get the wording right and resolution is arithmetic. Get it wrong and no amount of good faith saves you.
Why the question is the whole game
Traders are not really betting on the world. They are betting on how your question maps to the world. Every gap between what you meant and what you wrote is a place where two honest people can reach opposite conclusions and both be right. That gap is where money gets stuck and trust dies.
I have seen markets with a perfect resolver and a clean audit trail still collapse into a flame war, because the question said "significant partnership" and nobody agreed what significant meant. The mechanism was fine. The words were not. This is the same failure that kills trust in online votes: ambiguity read as bad faith.
The four tests a resolution question must pass
Before a market opens, run the question through four checks.
One event. The question describes exactly one thing that either happened or did not. "Will X ship and get 10,000 users" is two events; split them. Compound questions produce compound disputes.
A hard deadline. "By 23:59 UTC on March 31, 2026" beats "by end of Q1" beats "soon." Time zones and cutoffs are where clever traders find edges you did not intend. Pin them.
A named source. Who or what determines the answer? A specific official announcement, a named data feed, a court filing. If the source is "general consensus," you have no source. This is the oracle problem, and you solve it by naming the oracle in the question itself.
An explicit default. What happens if the event is ambiguous, delayed, or the source goes silent? Say so up front: resolves NO, resolves void, or resolves at a fallback source. Undefined edge cases are the single most common dispute trigger.
Words that start fights
Kill the weasel words. "Significant," "major," "successful," "widely," "effectively," "meaningful." Every one of them is a subjective threshold that someone will contest when money is on the line. Replace each with a number or a named event. Not "significant adoption" but "at least 5,000 unique wallets." Not "successful launch" but "the mainnet contract is deployed and verified on the block explorer."
Also watch for hidden assumptions. "Will the mayor win reelection" assumes there is an election, the mayor runs, and the term is what you think it is. Spell out what happens if the premise fails. A question that cannot handle "the thing never occurred" is a question that voids messily.
Test it against an adversary before you open
Here is the practice that has saved me the most grief: before publishing, hand the question to someone whose job is to break it. Ask them to find a real-world outcome where the question resolves ambiguously, or where a trader could argue either way and profit. If they find one, you rewrite. If they cannot, you are probably safe. This is cheap adversarial review, and it prevents nearly every dispute that would otherwise land in a contested-outcome fight.
On MintVote the resolution question is treated as the contract it actually is, versioned and locked once the market opens, so nobody can quietly reinterpret it after the fact. That discipline is not bureaucracy. It is the difference between a market people trust with real stakes and a comment thread with a leaderboard.
Write the question as if you will not be in the room to explain what you meant. Because when it resolves, you will not be. One event, one deadline, one source, one default. That is the whole craft, and it is worth more than any clever market mechanism you could bolt on top.