How to link knowledge to buildings or stuff. I want to make stupidity-link You lose that thing - whatever that is - you forget that. It goes hand-in-hand with my mine idea. I already talked about that; I don't need to talk about that any more. O.k., fine: it had to do with making steel, i.e., resources such as iron, strontium, and weeds, er, wood, er, lots and lots of strontium, a few weeds, well more strontium.