This is interesting! When you first said "WB-economy" my first thought (after world builder ) was wonder building. But then I thought it's such a well known strategy already that it's probably not that. I've been using failgold plenty of times to keep slider at 100% at all times, but mainly in cultural games with smaller empires and way smaller expenses, and in those games I also want to complete a lot of wonders. It didn't occur to me that you could re-evaluate all production in the game and push this to an extreme to make that much more money. It was mentioned in the G-Major thread that you can also complete national wonders for failgold, then gift away the city with the national wonder to start the process all over again. Is this something you are planning to do, and which national wonders are good candidates for this? Later ones like Hermitage are quite obvious, but which early national wonders would you rather gift away to build again than keep for the benefit?