GFD Dennou Club: Background (inflated?) Background in the late 1980's Continuous ramification and specialization of our fields Developments of computer and information science/technology, especially emergence of personal but network connected computers → Many people began to recognize that it was time to try to realize what V. Bush had imagined in 1945. The true challenge of human beings is not to explore fine structure of atoms or complexity of life, but find a better way to control flood of knowledge produced by science and technology. Bush, V., 1945: As we may think. Atlantic Monthly, 1945 July, 101-108. (Sorry, the above is translated from Japanese translated version. I am searching the original, which should be more elegant.) → So do we.