How many employees did it take to run IG? Architecturally they are very similar. Now, I do think there's more to it, once you start adding in monetization and

How many employees did it take to run IG? Architecturally they are very similar. Now, I do think there's more to it, once you start adding in monetization and business features, but it doesn't take that many people to run a highly scalable distributed pub/sub.