Yeah - it's a tradeoff, and and an interesting one to look at. You get higher efficiency as most of the data is in a locus around one sim - so it stays on one

Yeah - it's a tradeoff, and and an interesting one to look at. You get higher efficiency as most of the data is in a locus around one sim - so it stays on one server and you don't need to move data about - check data, reorder data, etc. On the other hand, you get lower overall utilisation - as you might have one server maxed out, with ten sitting idle right next door. So interesting they've taken this approach - it's got the significant advantage of being more simple and robust than other approaches.