Was the + to tourism income event always such a game breaker? In the games I play whenever that event comes up, I have so much money I don't have to worry about econ ever again, even though I'm flat out buying expensive wonders and super projects as soon as they become available. I notice that the AI covers all its planets with factories under the event. I can understand making tourism, normally kin to trade for income strength, being boosted to something near normal tax rates, but to utterly swamp any other potential form of income suggests to me that some of the underlying numbers on this event are out of date.