Warcry- When you were originally talking about the server-cluster design, the
theoretical limit was 60,000 players. After factoring in internet bandwidth
etc you revised this to approximately 15,000-20,000. Have the estimates for number of
supportable players changed or should we still expect to see those kind of numbers?

Erik- Theoretically there's no limit to the number of simultaneous players in a
single world. In practice, the individual server load will exponentially
increase as the number of server computers in a world simulation increases,
and at some point we will not get additional gain from further horizontal
scaling (adding more computers). At what point we reach this limit is hard
to say before open beta and real measurements, but currently my requirement
is at least 10000 players, and my hopes are for double that.