That is not what it says. I dont know what your nationality is,- but maybe your German like the author. It might be you have an understanding of how a gem pit should work beforehand, but the information given should be enough to get to know by reading it - not by guessing what it means. Or they could leave it blank - then there was nothing to misunderstand
It says it contains 40K and produce 20K. By containing I understand that this is how much there is in it from start, by producing - I understand that this is made extra (produce= make into existing).
I dont think I am any more stupid or smart than the rest of the players. We are from all over the world. If the information is not 100% clear and correct English it is very hard for especially those of us, who are neither English nor German to understand it.