Thoughts:
A sad end to a very enjoyable game. I had decided on a trip to outer Space figuring that fastest diplomatic or cultural were off the cards, and would have beaten the (AI) competition comfortably, but the "documented feature" would really take the fun out of trying to continue. My core cities have instant astronomical WW, and Mongolian lands are crippled by additional "motherland" issues - the same issues I had wiped out Khan expressly to avoid!
Anyway, here is my Empire at the end of 1738AD:
