Hedge funds spend hundreds of thousands of dollars on alternative data, and what they do essentially boils down to one thing: trading in the opposite direction when retail investor sentiment reaches extremes. The core barrier in this business isn't how complex the model is; it's the inability to access data sources. Reddit posts need to be scraped, StockTwits sentiment needs to be purchased, and Twitter's firehose requires payment. Retail investors want to do it themselves? No way. But Longbridge Skills has opened up the community API. What does this mean? It means a retail investor...