Deep Learning's Killer App for Finance?

Yann LeCun, arguably the father of modern machine learning, has described Generative Adversarial Networks (GANs) as the most interesting idea in deep learning in the last 10 years (and there have been a lot of interesting ideas in Machine Learning over the past 10 years). From a trading perspective, or any game theoretic activity in which the game itself constantly evolves, GANs are big news. This is wrong, because it doesn't address the evolution of the game and the other players. It also comes up with all kinds of nonsense based on spurious correlations. Bigger data set more false positives.