Sometimes in Civ IV I felt the various eras went by too quickly, especially the medieval era. But now with the eureka system, and two tech trees, are we going to be able to appreciate and utilise the various upgrades before a new one comes along? I checked out one of Quill18's videos, and at around the 1600's he was researching computers. Meanwhile his empire had many unimproved tiles - his capital hadn't even built the roman baths. I'm not sure if this is his playstyle, or that the techs are researched too damn quickly (he was playing standard speed). Yes there will be epic modes, but they are hardly fun when it takes forever to build units. It's really just standard stretched out longer. And then imbalance issues can creep in. I get that Firaxis want to make Civ VI more multiplayer friendly, and they like players to have lots of choices such that the eureka system introduces, but when it comes at the expense of pacing, and that classic Civilization gameplay we all love, I wonder if it is innovation for the sake of it.