One of the fortunate few who have been able, at this early stage, to acquire both academic and industry experience in analyzing and implementing virtual worlds, Purbrick hails from Nottingham UK. Primarily a network technologist but also a designer, his credits include experiments with time-linking in virtual worlds (recording and replaying events), persistence mechanisms (the PhD thesis), and real-world projects like Dragon Empires and the now-retired Warhammer Online. In the latter, we would have been treated to Jim's version of a seamless load-balancing technology - a holy grail for us lag-tortured players.
You can see a collection of Jim's writings at this link. Welcome!