Here is an interesting item I would like to share. It seems that China has drastically pushed the boundaries of power transmission grid operations. They boldly go where no man has gone before. How and why? The combination of geography and demographics leads them to place large generation resources very far away from the loads where consumers live. Excessively long transmission lines make HVDC attractive as a competition for AC. Excessive number of HVDC lines brings new operational challenges and opportunities, which they seem to be managing just fine. They are doing things that old timers like me never imagined. Specifically, they challenged the catechism that increased interconnectivity of the AC grid is more reliable; a principle we used for more than 100 years. Hats off to them.