In the cutthroat business of video streaming, 100 million paying subscribers is no longer a benchmark for a financially sustainable model. That figure is now at least 200 million subscribers, if the collective musings of three media industry dinosaurs and a pair of powerful streaming executives is to be taken as gospel. Cable cowboy John Malone, Comcast heir Brian Roberts, and Fox Broadcasting founder Barry Diller—punching a combined net worth of $17.6 billion—have put their cards on the table in an unprecedented three-way billionaire interview with the New York Times. The trio’s views are balanced by cameos from younger C-suites chomping at their cable-era lunches – Netflix co-CEO Ted Sarandos, and Amazon Prime Video boss Mike Hopkins. Coincidentally, or probably…