That's really cool. For the heck of it I increased the actor count to 16 and CPU-usage stayed ~50% when running (Core i7, dual core w/hyper-threading). If you c

That's really cool. For the heck of it I increased the actor count to 16 and CPU-usage stayed ~50% when running (Core i7, dual core w/hyper-threading). If you comment out the NSLog call, it spikes to ~280% CPU usage, as the overhead introduced by NSLog is likely slowing things down.