Hi, I posted some ideas in the suggestion sub-forum, including a collective victory, civil resistance or ambushes, and the blind research would be one of the most easy to add for developers but also the most controversial (and so stay optional). If activated, the player (and AI) could not select anymore which tech and civic to research. At each turn, science and culture yields are randomly affected to one available tech/civic. Because in History, most inventions and creations were found by accident or serendipity. At first it could feel like a frustrating loss of control but the player would still have control on amount of science and culture generated and could aim to desired innovations with unlocking eurekas and inspirations. And so, getting desired tech would be a lot more rewarding, and it would prevent AI or players to beeline some modern units in medieval era. It would also make games harder and longer, but fairly for everyone.