Numerai is a hedge fund built by a global community of anonymous data scientists. They take expensive, proprietary trading data and provide it to anyone free of charge (using homomorphic encryption) to make the best models for stock market prediction. The most accurate and original machine learning models from the world’s best data scientists are synthesized into a collective artificial intelligence that controls the capital in Numerai’s hedge fund.
It has some really impressive hedge fund managers and machine learning gurus touting its ability and potential so I'm pretty excited to see where it goes. An army of smart data scientists around the world should be able to try a lot more strategies and have more creative ideas than the few thousands who work at the big hedge funds.