On VV2 once you have finished all 16 puzzles. If allot of your people are masters inscience and farming how can they become masters in building if there are no more buildingd to make. They hould have improved that. You should have been able to build more homes when everytime you hit a milestone. Like if when you get 50 people you build a house when you get to 90 build a biger house. So how can they get to be master builders after they get over 50 people or after all buildings are built.