http://xxw3441.blog.163.com/blog/static/7538362420173385655713

https://m.douban.com/note/262171305/

中国又是世界上汽车产量最大的国家. 在上海要拿一个牌照，多难啊！每天出门就想着今天千万不要塞车。于是，我就想日本是汽车设计制造大国，现在谷歌有了无人驾驶汽车，中国和日本，德国美国，可不可以联合起来研发设计不同种类车，包括无人驾驶车. 对单一个体人设计小一点的体积车子，甚至车子可以动态挂钩联体行进. 这样就可以在现有的公路上增加流量. 可以设计通勤系统，有专门的分散集合点，点和点有长途相连. 长途也可以双层的巴士，集合点有足够泊车位，也有许多可以租用的单人通勤车，就像上海的电动共用车。这是一份世界各国人口密度的排名。日本排在第二。澳大利亚甚至比俄罗斯的人口密度都低. 我去过东京，以前看过的日本郊区几乎不是郊区，动画里看到的日本的乡村，其实离东京都不怎么远. 新干线一天之内都能到的，这个村庄看得见另外的村镇. 我们这边光加州就有得你开车了，山区几十里都没有人烟的。日本要老龄化了，千百万个老年人，有钱，占用着资源. 日本的冬天又是很冷的。有很多日本人在上海，东南亚，日本政府也用心在南美找了秘鲁，可能有大规模移民的计划。但走遍世界，还是很少看见日本人，日本人都抱成团，自己一个小圈子生活或做生意。日本文化又比较独特，孤傲自视甚高，不太容易和别的文化融合. 日本愿意和中国合作开发养老产业吗？

China is also the country with the largest automobile production in the world. How difficult is it to get a license in Shanghai! Every day when I go out, I think that I don’t want to traffic jams today. So, I think Japan is a big country in automobile design and manufacturing. Now that Google has a driverless car, China and Japan, Germany and the United States, can you jointly develop and design different types of cars, including driverless cars? Design small volume car for individuals, even the car can be dynamically linked to go together. This can improve the flow on the existing road. You can design a commuting system, there are special scattering and gathering points, point to point has long-distance connections. Long-distance can also use double-layer bus. At the station it has enough parking spaces, and there are many single commuter cars that can be rented, just like Shanghai's electric shared vehicle. This is a ranking of the population density of countries around the world. Japan is in second place. Australia is even less dense than Russia. I have been to Tokyo. The Japanese suburbs I have seen before from the pictures are hardly suburbs. The Japanese villages seen in the animation are actually not far from Tokyo, can be reached by Shinkansen in one day. From this village you can see other villages and towns. We are here just in California, when drive, miles in the mountains, no people. Japan is aging, millions of old people, rich and occupying resources. Japan's winter is very cold. There are many Japanese in Shanghai, Southeast Asia, and the Japanese government is also looking for places Peru in South America. There may be plans for large-scale immigration. But when I traveled around the world, I rarely saw Japanese people. The Japanese are all in groups and live or do business in a small circle. Japanese culture is quite unique, and it is very self-sufficient and self-conceived. It is not easy to integrate with other cultures. Is Japan willing to cooperate with China to develop the old-age industry?