What is the fine-grained topic of the following text: «Yes, I was able to get this problem, in the case of technical limitations of Civilization 5, the maximum cost of tehnology than 2097152 = 2 ^ 21 , which means that if the technology is worth 2097152 and we will increase the value by 1, it will cost -2097152 . Only return the topic.
Technical limitations of technology cost in Civilization 5 game.