 It was these people from South Asia and East Asia, all over the world. They were coming here because we had this open, free environment where you could gamble and you had a good shot of winning if you could work hard. That is at risk of changing. So what's so interesting is life became easier. Obviously, we get to the 20th century and 21st century. We end up from walking, from biking. We get cars. We get roads. We get planes. Everything changes. And we just keep on improving. Now, AI is here. That's another book for you.