New Zealand's ambassador to Beijing, Carl Worker, passed on a salient fact to Prime Minister John Key while they were waiting for President Xi to welcome them into the meeting room at the stately Bo'ao guest house.
If the southern Guangdong province (where Key arrived last night) were to break away from China - and there's no suggestion it ever would - its economic strength is such it would immediately be in the G10, the top 10 economies of the world.
Key recounted the fact on the balcony of his own hotel in Bo'ao before a mad dash to the airport for the next leg of his trip (to Guangdong) because the meeting with Mr Xi had gone well over time.
Mr Key was fizzing about the meeting about the state of relationship so far, the personal rapport between the leaders themselves but mainly because of the readiness of both parties to take it to a new level.
The fact that Key could raise something as serious as direct currency conversion between the Kiwi dollar and the reminbi with a senior minister at lunchtime and have it ticked off by Xi for further work in the talks a few hours later would make any former banker go giddy.