I found somewhere that Netflix has ~74 million US/canada subscribers. If we guesstimate half of those might be on at peak time, that's 37 million users. At 400

I found somewhere that Netflix has ~74 million US/canada subscribers. If we guesstimate half of those might be on at peak time, that's 37 million users. At 400k connections/server that's only 85 servers to serve the connections, so I think the determining factor is the distribution of content people are watching.