It seems Civ VI is all about building wide and ICS. That's fine and a lot of people enjoy playing that way. I'm more of a tall builder myself, however, and wish there was a way to have tall building be a viable alternative strategy to ICS without nerfing ICS such that tall building is the only viable strategy. So, how might that be achieved in Civ VI? I think the easiest way is to improve upon the great people and how they are acquired. Specifically, great people should provide a much better benefit. Not only that, tall cities should have a great advantage in acquiring great people. That advantage should be so great in fact that a really focused tall empire could all but monopolize the great people. So, for example, you could build an empire with 4 cities, be at a disadvantage in terms of production and all other metrics compared to more expansive empires, and still be competitive as you acquire great people. Assuming the benefits from great people are properly balanced, the acquisition of great people could offset any disadvantage from having fewer cities. And this would work without hurting the ICS strategy because only a handful of empires could focus on a tall strategy or the tall strategy becomes ineffective. Since there's a global pool of great people, if more than a couple empires go tall, there won't be enough great people to go around for the strategy to be effective. How could this be implemented? Well, key to this idea working is that tall cities would need to be able to have an advantage in gaining great people. Such an advantage does not exist to my knowledge. There are many ways to introduce this advantage but, for the sake of argument, one way could be introducing an early civic that gives a GPP bonus based on city population to each of your GPP generators. If a single empire following a tall strategy could, say, collect half or a third of all the great people and the great people were good enough to make doing so worth while, then I think tall strategies would be viable again while ICS would be no less viable and an equal counter strategy.