I 100% agree with this as a Daily Fantasy Sports player who has published some blog posts and code related to strategy. Any success I've had has been in sports

I 100% agree with this as a Daily Fantasy Sports player who has published some blog posts and code related to strategy. Any success I've had has been in sports and formats that are not popular and I purposely do not write or open-source code on. Edge can go away almost immediately; I saw this firsthand in DFS when a number of websites came in with free tools that pros had been using for years. I play in the stock market a little and my best wins have been on small cap stuff where I've had some edge with unique knowledge of the industry and have taken the time to read SEC filings / keep tabs on earnings reports / closely watch competitors, acquisitions, etc. To be clear, I still think this article is great from a learning about Keras perspective. That said, to anyone who thinks building some ML models and outperforming the market is easy, remember that edge is only as good as the number of participants in the market who don't have it.