Hypermind [1] is an interesting prediction market which avoids many of these pitfalls, by 1) using play money instead of real money, and 2) requiring an applica

Hypermind [1] is an interesting prediction market which avoids many of these pitfalls, by 1) using play money instead of real money, and 2) requiring an application for new users. I've been playing on it for a few years, and the predictions are usually pretty good. [1]: https://predict.hypermind.com https://predict.hypermind.com