I'm not sure whether this is a bug exactly, but something seems not right. I'm playing a Pangea game with Revision 5124. The problem is, my enemies are just sitting around being useless. We're still in prehistoric times, but I'm about to get Sedentary Lifestyle. I already have 4 cities from using the Tribal settler. And I've scooped every single wonder that was available to me too. My 20 opponents, however, still all have 1 city each. I don't think any even have Tribal yet. When I played the stable ver 28, with exactly the same settings (though a different map type), they usually had as many cities as I did, and often rather more. I've attached the save in case anyone is curious. I'm not sure exactly what my opponents are doing, but they're clearly not very interested in research. Are they perhaps not using the Creature Myths for extra research? Did none of them pick the scientific trait? It just seems very odd.