I thought it was funny to myself when I finally figured out that if I invested in a particular kind of building that when I placed I got those types of blueprints. I was stuck for soooo long without a Great Building, and only by chance finally completed one. Shortly after that the “new discovery” led to many more. About the same time, having friends and belonging to a guild - I didn’t know the extent of their ability to get into you “stuff” so I hesitated ever accepting friends or joining a guild. Felt like such a noob when it all started to make sense. Oh, and even better, what’s that black thing and where’s my stuff!!! Took so long to figure out what was going on there too - and how to defend and build defenses.