Judgement dates more than 5 years in the future are currently prohibited. While I want to encourage long-term claims, I don't want to commit to keeping this market open indefinitely, nor do I want to accept claims which cannot be resolved within the time period for which I'm willing to commit to keeping the market running. If you want claims longer than 5 years, please help to convince me that the market will be in demand further in the future (such as by convincing more people to become addicted to it).