Inda and Roger live near Luxembourg. Plans for the evening include going to the Grand Opera in Paris and dinner with friends in a restaurant. What does this have to do with global GDP growth rates, demographic statistics of Central European countries, new technologies in large-scale transport projects and, finally, thermonuclear energy and AI potential? "Previously: Taxi" is a short story about how humanity's advances in science and technology will provide us with new infrastructure capabilities in the near future - in 100 years.