I agree. It is nice to see people share culture and improve it. Just like things always have been. Japanese is known to "steal" foreign culture and make it our own and improve. USA's strength, I think, comes from the mix of culture even though I feel that racial tension is too fierce sometimes. I have seen in San Francisco that people are open to new ideas to create something better together by overcoming differences in ethnicities or beliefs. I am aware that the boom in SFC is creating social problems. However, they are at the same time an indispensable catalyst to create solutions to problems with their ideas and technology, which we will not be able to live without.