Traveling Through the Tang Dynasty: at the Beginning, I Just Wanted to Lie Down

If you were given the opportunity to travel to the Tang Dynasty, would you choose to live in peace or conquer the world? If aliens came and gave you a chance to travel to the Tang Dynasty, how would you change history and come back for a decisive battle a thousand years later? If aliens came over and gave you ten opportunities to travel to the Tang Dynasty, how would you change history and come back for a decisive battle after a thousand years? Lin He: I just want to lie down, I really don't want to save the world.